./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i --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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:52:51,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:52:51,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:52:51,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:52:51,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:52:52,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:52:52,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:52:52,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:52:52,029 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:52:52,030 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:52:52,030 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:52:52,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:52:52,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:52:52,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:52:52,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:52:52,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:52:52,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:52:52,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:52:52,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:52:52,034 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:52:52,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:52,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:52:52,035 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:52:52,036 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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 -> 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c [2024-11-13 14:52:52,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:52:52,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:52:52,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:52:52,380 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:52:52,381 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:52:52,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i Unable to find full path for "g++" [2024-11-13 14:52:54,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:52:54,532 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:52:54,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-13 14:52:54,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/36c50497c/913324125f95492daf78311ef780d0d4/FLAG978540fc4 [2024-11-13 14:52:54,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/36c50497c/913324125f95492daf78311ef780d0d4 [2024-11-13 14:52:54,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:52:54,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:52:54,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:54,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:52:54,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:52:54,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a829a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54, skipping insertion in model container [2024-11-13 14:52:54,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:52:54,751 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-13 14:52:54,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:54,811 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:52:54,827 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-13 14:52:54,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:52:54,871 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:52:54,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54 WrapperNode [2024-11-13 14:52:54,872 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:52:54,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:54,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:52:54,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:52:54,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,942 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2024-11-13 14:52:54,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:52:54,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:52:54,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:52:54,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:52:54,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,977 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 14:52:54,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:54,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:52:54,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:52:54,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:52:54,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:52:54,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (1/1) ... [2024-11-13 14:52:55,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:52:55,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:52:55,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:52:55,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:52:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:52:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:52:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:52:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:52:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:52:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:52:55,122 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:52:55,123 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:52:55,400 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 14:52:55,401 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:52:55,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:52:55,419 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:52:55,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:55 BoogieIcfgContainer [2024-11-13 14:52:55,420 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:52:55,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:52:55,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:52:55,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:52:55,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:52:54" (1/3) ... [2024-11-13 14:52:55,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3251cc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:55, skipping insertion in model container [2024-11-13 14:52:55,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:52:54" (2/3) ... [2024-11-13 14:52:55,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3251cc54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:52:55, skipping insertion in model container [2024-11-13 14:52:55,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:55" (3/3) ... [2024-11-13 14:52:55,434 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-13 14:52:55,450 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:52:55,452 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i that has 2 procedures, 64 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:52:55,508 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:52:55,519 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;@7a03c91c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:52:55,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:52:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 46 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:52:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:52:55,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:55,533 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:55,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:55,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash 553895632, now seen corresponding path program 1 times [2024-11-13 14:52:55,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:55,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98898065] [2024-11-13 14:52:55,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:55,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:55,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:52:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:52:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:52:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:52:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:52:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:52:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:52:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:52:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:52:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:52:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:52:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:52:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:52:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:52:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:52:55,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:55,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98898065] [2024-11-13 14:52:55,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98898065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:55,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:55,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:52:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41418326] [2024-11-13 14:52:55,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:55,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:52:55,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:55,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:52:55,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:55,970 INFO L87 Difference]: Start difference. First operand has 64 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 46 states have internal predecessors, (64), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:52:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:56,005 INFO L93 Difference]: Finished difference Result 125 states and 205 transitions. [2024-11-13 14:52:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:52:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2024-11-13 14:52:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:56,014 INFO L225 Difference]: With dead ends: 125 [2024-11-13 14:52:56,015 INFO L226 Difference]: Without dead ends: 60 [2024-11-13 14:52:56,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:52:56,024 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:56,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:52:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-13 14:52:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-13 14:52:56,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:52:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 89 transitions. [2024-11-13 14:52:56,077 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 89 transitions. Word has length 104 [2024-11-13 14:52:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:56,078 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 89 transitions. [2024-11-13 14:52:56,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:52:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 89 transitions. [2024-11-13 14:52:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:52:56,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:56,082 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:56,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:52:56,082 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:56,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:56,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1189569932, now seen corresponding path program 1 times [2024-11-13 14:52:56,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:56,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93544542] [2024-11-13 14:52:56,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:56,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:52:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:52:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:52:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:52:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:52:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:52:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:52:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:52:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:52:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:52:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:52:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:52:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:52:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:52:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:52:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:52:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:52:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:52:57,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:52:57,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93544542] [2024-11-13 14:52:57,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93544542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:52:57,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:52:57,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:52:57,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134780999] [2024-11-13 14:52:57,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:52:57,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:52:57,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:52:57,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:52:57,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:52:57,949 INFO L87 Difference]: Start difference. First operand 60 states and 89 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:52:58,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:52:58,339 INFO L93 Difference]: Finished difference Result 164 states and 238 transitions. [2024-11-13 14:52:58,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:52:58,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-13 14:52:58,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:52:58,342 INFO L225 Difference]: With dead ends: 164 [2024-11-13 14:52:58,342 INFO L226 Difference]: Without dead ends: 107 [2024-11-13 14:52:58,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:52:58,344 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 54 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:52:58,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 288 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:52:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-13 14:52:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 94. [2024-11-13 14:52:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 68 states have internal predecessors, (86), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:52:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-13 14:52:58,362 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 104 [2024-11-13 14:52:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:52:58,363 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-13 14:52:58,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:52:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-13 14:52:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:52:58,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:52:58,368 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:52:58,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:52:58,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:52:58,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:52:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1367225966, now seen corresponding path program 1 times [2024-11-13 14:52:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:52:58,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482023609] [2024-11-13 14:52:58,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:52:58,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:52:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:53:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:53:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:53:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:53:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:53:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:53:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:53:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:53:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:02,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:53:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:53:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:53:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:53:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:53:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:53:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:53:03,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:53:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:03,025 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:53:03,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:03,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482023609] [2024-11-13 14:53:03,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482023609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:03,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:03,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:53:03,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127479248] [2024-11-13 14:53:03,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:03,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:53:03,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:53:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:53:03,027 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:53:04,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:04,425 INFO L93 Difference]: Finished difference Result 304 states and 419 transitions. [2024-11-13 14:53:04,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:53:04,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-13 14:53:04,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:04,430 INFO L225 Difference]: With dead ends: 304 [2024-11-13 14:53:04,430 INFO L226 Difference]: Without dead ends: 213 [2024-11-13 14:53:04,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:53:04,432 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 154 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:04,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 299 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:53:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-13 14:53:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 137. [2024-11-13 14:53:04,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 106 states have (on average 1.349056603773585) internal successors, (143), 108 states have internal predecessors, (143), 26 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 14:53:04,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 195 transitions. [2024-11-13 14:53:04,454 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 195 transitions. Word has length 105 [2024-11-13 14:53:04,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:04,455 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 195 transitions. [2024-11-13 14:53:04,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:53:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 195 transitions. [2024-11-13 14:53:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 14:53:04,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:04,457 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:04,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:53:04,457 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:04,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:04,462 INFO L85 PathProgramCache]: Analyzing trace with hash 778926922, now seen corresponding path program 1 times [2024-11-13 14:53:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:04,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942459100] [2024-11-13 14:53:04,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 14:53:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 14:53:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 14:53:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 14:53:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 14:53:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 14:53:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 14:53:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 14:53:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 14:53:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-13 14:53:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 14:53:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 14:53:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 14:53:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 14:53:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 14:53:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:53:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:04,566 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:53:04,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:53:04,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942459100] [2024-11-13 14:53:04,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942459100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:53:04,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:53:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:53:04,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857310163] [2024-11-13 14:53:04,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:53:04,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:53:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:53:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:53:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:53:04,569 INFO L87 Difference]: Start difference. First operand 137 states and 195 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:53:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:53:04,610 INFO L93 Difference]: Finished difference Result 278 states and 392 transitions. [2024-11-13 14:53:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:53:04,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 105 [2024-11-13 14:53:04,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:53:04,613 INFO L225 Difference]: With dead ends: 278 [2024-11-13 14:53:04,613 INFO L226 Difference]: Without dead ends: 144 [2024-11-13 14:53:04,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 14:53:04,615 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 56 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:53:04,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 182 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:53:04,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-13 14:53:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 141. [2024-11-13 14:53:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 109 states have (on average 1.275229357798165) internal successors, (139), 111 states have internal predecessors, (139), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-13 14:53:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 191 transitions. [2024-11-13 14:53:04,635 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 191 transitions. Word has length 105 [2024-11-13 14:53:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:53:04,636 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 191 transitions. [2024-11-13 14:53:04,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:53:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 191 transitions. [2024-11-13 14:53:04,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 14:53:04,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:04,638 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:04,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:53:04,638 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:04,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:04,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2058256551, now seen corresponding path program 1 times [2024-11-13 14:53:04,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:53:04,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142361349] [2024-11-13 14:53:04,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:04,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:53:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:53:04,670 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:53:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:53:04,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:53:04,739 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:53:04,740 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 14:53:04,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:53:04,744 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 14:53:04,801 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:53:04,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:53:04 BoogieIcfgContainer [2024-11-13 14:53:04,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:53:04,805 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:53:04,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:53:04,805 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:53:04,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:52:55" (3/4) ... [2024-11-13 14:53:04,813 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:53:04,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:53:04,815 INFO L158 Benchmark]: Toolchain (without parser) took 10255.51ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 93.1MB in the beginning and 127.6MB in the end (delta: -34.5MB). Peak memory consumption was 140.3MB. Max. memory is 16.1GB. [2024-11-13 14:53:04,816 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 84.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:53:04,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.33ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:53:04,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.47ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:53:04,819 INFO L158 Benchmark]: Boogie Preprocessor took 52.08ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:53:04,819 INFO L158 Benchmark]: RCFGBuilder took 423.99ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 60.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:53:04,820 INFO L158 Benchmark]: TraceAbstraction took 9379.72ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 59.6MB in the beginning and 127.6MB in the end (delta: -68.0MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. [2024-11-13 14:53:04,820 INFO L158 Benchmark]: Witness Printer took 8.43ms. Allocated memory is still 293.6MB. Free memory was 127.6MB in the beginning and 127.6MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:53:04,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 84.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.33ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 80.3MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.47ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.5MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.08ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.99ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 60.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9379.72ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 59.6MB in the beginning and 127.6MB in the end (delta: -68.0MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. * Witness Printer took 8.43ms. Allocated memory is still 293.6MB. Free memory was 127.6MB in the beginning and 127.6MB in the end (delta: 48.2kB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 93, overapproximation of someBinaryDOUBLEComparisonOperation at line 59, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 100. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 16; [L23] unsigned char var_1_2 = 0; [L24] signed long int var_1_3 = -64; [L25] signed long int var_1_4 = -4; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] signed char var_1_7 = 32; [L29] signed char var_1_8 = -8; [L30] signed char var_1_9 = 10; [L31] double var_1_10 = 1.6; [L32] double var_1_11 = 127.25; [L33] double var_1_12 = 2.5; VAL [isInitial=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L104] isInitial = 1 [L105] FCALL initially() [L106] int k_loop; [L107] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=0, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L107] COND TRUE k_loop < 1 [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L71] var_1_2 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L72] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L73] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=-64, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L74] var_1_3 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_3 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L75] RET assume_abort_if_not(var_1_3 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] CALL assume_abort_if_not(var_1_3 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L76] RET assume_abort_if_not(var_1_3 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=-4, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L77] var_1_4 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_4 >= -1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L78] RET assume_abort_if_not(var_1_4 >= -1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] CALL assume_abort_if_not(var_1_4 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L79] RET assume_abort_if_not(var_1_4 <= 1073741823) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=1, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L80] var_1_5 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L81] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L82] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L83] var_1_6 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L84] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L85] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-8, var_1_9=10] [L86] var_1_8 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L87] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L88] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L88] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=10] [L89] var_1_9 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_9 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L90] RET assume_abort_if_not(var_1_9 >= -127) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L91] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L91] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, var_1_10=8/5, var_1_11=509/4, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L92] var_1_11 = __VERIFIER_nondet_double() [L93] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L93] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_12=5/2, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L94] var_1_12 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L95] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L109] RET updateVariables() [L110] CALL step() [L37] signed long int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=1073741823, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L38] COND FALSE !(\read(var_1_6)) VAL [isInitial=1, stepLocal_0=1073741823, var_1_10=8/5, var_1_1=16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L43] COND TRUE \read(var_1_2) [L44] var_1_1 = (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))) VAL [isInitial=1, stepLocal_0=1073741823, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L56] unsigned char stepLocal_2 = var_1_5; [L57] signed char stepLocal_1 = var_1_9; VAL [isInitial=1, stepLocal_0=1073741823, stepLocal_1=-1, stepLocal_2=-255, var_1_10=8/5, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L58] COND TRUE ! var_1_6 [L59] var_1_10 = ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) VAL [isInitial=1, stepLocal_0=1073741823, stepLocal_1=-1, stepLocal_2=-255, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L110] RET step() [L111] CALL, EXPR property() [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L100] EXPR (! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1) VAL [isInitial=1, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L100] EXPR ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) VAL [isInitial=1, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L100-L101] return ((var_1_2 ? (var_1_1 == ((signed long int) (((((var_1_7 + var_1_7)) < (-16)) ? ((var_1_7 + var_1_7)) : (-16))))) : (var_1_5 ? (var_1_1 == ((signed long int) (var_1_7 + -4))) : (var_1_6 ? (var_1_1 == ((signed long int) var_1_7)) : (var_1_1 == ((signed long int) var_1_7))))) && (var_1_6 ? ((var_1_3 <= var_1_4) ? (var_1_7 == ((signed char) ((((var_1_8) > (var_1_9)) ? (var_1_8) : (var_1_9))))) : 1) : 1)) && ((! var_1_6) ? (var_1_10 == ((double) ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))))) : (((var_1_7 | var_1_1) <= var_1_9) ? ((var_1_5 && var_1_6) ? (var_1_10 == ((double) var_1_12)) : (var_1_10 == ((double) 5.5))) : 1)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] [L19] reach_error() VAL [isInitial=1, var_1_10=1073741828, var_1_11=1073741828, var_1_12=1073741828, var_1_1=-16, var_1_2=1, var_1_3=1073741823, var_1_4=1073741823, var_1_5=-255, var_1_6=0, var_1_7=32, var_1_8=-1, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 862 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 415 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 92 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 524 NumberOfCodeBlocks, 524 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 414 ConstructedInterpolants, 0 QuantifiedInterpolants, 2261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 1920/1920 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:53:04,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:53:07,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:53:07,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:53:07,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:53:07,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:53:07,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:53:07,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:53:07,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:53:07,699 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:53:07,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:53:07,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:53:07,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:53:07,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:53:07,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:53:07,700 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:53:07,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:53:07,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:53:07,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:53:07,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:53:07,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:07,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:53:07,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:53:07,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:53:07,703 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/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 -> 4532f74b04e01e58202f923b507d6272ee7cdb7ef4468329dcf73de3b3b2659c [2024-11-13 14:53:07,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:53:08,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:53:08,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:53:08,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:53:08,014 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:53:08,016 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i Unable to find full path for "g++" [2024-11-13 14:53:09,864 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:53:10,103 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:53:10,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-13 14:53:10,112 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/a28827ede/552aaa6363d14e0eb0329fd573a649ba/FLAG41f6079f7 [2024-11-13 14:53:10,126 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/data/a28827ede/552aaa6363d14e0eb0329fd573a649ba [2024-11-13 14:53:10,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:53:10,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:53:10,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:10,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:53:10,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:53:10,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df4f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10, skipping insertion in model container [2024-11-13 14:53:10,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,157 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:53:10,309 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-13 14:53:10,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:10,365 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:53:10,376 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_5737d8fe-2bbc-4e47-ba14-da0e5401516d/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-85.i[915,928] [2024-11-13 14:53:10,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:53:10,428 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:53:10,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10 WrapperNode [2024-11-13 14:53:10,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:53:10,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:10,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:53:10,430 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:53:10,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,466 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-13 14:53:10,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:53:10,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:53:10,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:53:10,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:53:10,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,489 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 14:53:10,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,497 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,501 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:53:10,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:53:10,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:53:10,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:53:10,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (1/1) ... [2024-11-13 14:53:10,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:53:10,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:53:10,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:53:10,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:53:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:53:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:53:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:53:10,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:53:10,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:53:10,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:53:10,676 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:53:10,678 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:53:11,046 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-13 14:53:11,047 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:53:11,059 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:53:11,059 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:53:11,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:11 BoogieIcfgContainer [2024-11-13 14:53:11,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:53:11,063 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:53:11,063 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:53:11,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:53:11,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:53:10" (1/3) ... [2024-11-13 14:53:11,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d461b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:11, skipping insertion in model container [2024-11-13 14:53:11,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:53:10" (2/3) ... [2024-11-13 14:53:11,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d461b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:53:11, skipping insertion in model container [2024-11-13 14:53:11,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:53:11" (3/3) ... [2024-11-13 14:53:11,075 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i [2024-11-13 14:53:11,092 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:53:11,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-85.i that has 2 procedures, 53 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 14:53:11,157 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:53:11,168 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;@477cabd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:53:11,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 14:53:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:53:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-13 14:53:11,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:53:11,183 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:53:11,184 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:53:11,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:53:11,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1860665281, now seen corresponding path program 1 times [2024-11-13 14:53:11,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:53:11,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080636904] [2024-11-13 14:53:11,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:53:11,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:53:11,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:53:11,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:53:11,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 14:53:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:53:11,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 14:53:11,428 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:56:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-13 14:56:51,714 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:56:51,715 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:56:51,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080636904] [2024-11-13 14:56:51,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080636904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:56:51,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:56:51,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 14:56:51,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437477909] [2024-11-13 14:56:51,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:56:51,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:56:51,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:56:51,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:56:51,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:56:51,745 INFO L87 Difference]: Start difference. First operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 35 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:56:54,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:56:54,120 INFO L93 Difference]: Finished difference Result 160 states and 255 transitions. [2024-11-13 14:56:54,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 14:56:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-13 14:56:54,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:56:54,130 INFO L225 Difference]: With dead ends: 160 [2024-11-13 14:56:54,130 INFO L226 Difference]: Without dead ends: 98 [2024-11-13 14:56:54,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-13 14:56:54,136 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 174 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:56:54,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 372 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 14:56:54,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-13 14:56:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2024-11-13 14:56:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:56:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2024-11-13 14:56:54,183 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 102 [2024-11-13 14:56:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:56:54,184 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-11-13 14:56:54,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 13 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:56:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2024-11-13 14:56:54,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:56:54,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:56:54,191 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:56:54,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-13 14:56:54,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:54,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:56:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:56:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1539300999, now seen corresponding path program 1 times [2024-11-13 14:56:54,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:56:54,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339480524] [2024-11-13 14:56:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:56:54,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:56:54,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:56:54,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:56:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 14:56:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:56:54,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:56:54,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-13 14:57:19,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:19,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:19,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339480524] [2024-11-13 14:57:19,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339480524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:19,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:19,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-13 14:57:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930667350] [2024-11-13 14:57:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:19,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 14:57:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 14:57:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:57:19,981 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:57:22,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:22,145 INFO L93 Difference]: Finished difference Result 115 states and 145 transitions. [2024-11-13 14:57:22,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 14:57:22,147 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2024-11-13 14:57:22,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:22,150 INFO L225 Difference]: With dead ends: 115 [2024-11-13 14:57:22,151 INFO L226 Difference]: Without dead ends: 113 [2024-11-13 14:57:22,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-13 14:57:22,151 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 124 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:22,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 289 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 14:57:22,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-13 14:57:22,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 88. [2024-11-13 14:57:22,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.2033898305084745) internal successors, (71), 60 states have internal predecessors, (71), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 14:57:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 119 transitions. [2024-11-13 14:57:22,167 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 119 transitions. Word has length 103 [2024-11-13 14:57:22,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:22,167 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 119 transitions. [2024-11-13 14:57:22,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:57:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 119 transitions. [2024-11-13 14:57:22,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-13 14:57:22,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:22,170 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:22,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 14:57:22,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:22,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:22,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash 171092579, now seen corresponding path program 1 times [2024-11-13 14:57:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:22,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672327321] [2024-11-13 14:57:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:22,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:22,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:22,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:22,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-13 14:57:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:22,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:57:22,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 14:57:22,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:22,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:22,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [672327321] [2024-11-13 14:57:22,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [672327321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:22,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:22,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:57:22,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761021048] [2024-11-13 14:57:22,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:22,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:57:22,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:57:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:57:22,526 INFO L87 Difference]: Start difference. First operand 88 states and 119 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:57:22,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:22,603 INFO L93 Difference]: Finished difference Result 180 states and 240 transitions. [2024-11-13 14:57:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:57:22,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-13 14:57:22,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:22,605 INFO L225 Difference]: With dead ends: 180 [2024-11-13 14:57:22,606 INFO L226 Difference]: Without dead ends: 95 [2024-11-13 14:57:22,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 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 14:57:22,607 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 40 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:22,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:57:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-13 14:57:22,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 71. [2024-11-13 14:57:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.18) internal successors, (59), 50 states have internal predecessors, (59), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:57:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2024-11-13 14:57:22,620 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 103 [2024-11-13 14:57:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:22,620 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2024-11-13 14:57:22,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 14:57:22,621 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2024-11-13 14:57:22,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:57:22,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:22,627 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:22,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-13 14:57:22,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:22,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:22,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:22,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2084501320, now seen corresponding path program 1 times [2024-11-13 14:57:22,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:22,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175614369] [2024-11-13 14:57:22,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:22,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:22,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:22,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:22,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-13 14:57:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:22,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 14:57:22,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:57:51,624 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-13 14:57:51,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:57:51,625 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:57:51,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175614369] [2024-11-13 14:57:51,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175614369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:57:51,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:57:51,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-13 14:57:51,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924003968] [2024-11-13 14:57:51,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:57:51,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:57:51,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:57:51,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:57:51,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:57:51,627 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:57:54,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:57:54,382 INFO L93 Difference]: Finished difference Result 112 states and 139 transitions. [2024-11-13 14:57:54,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-13 14:57:54,383 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2024-11-13 14:57:54,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:57:54,385 INFO L225 Difference]: With dead ends: 112 [2024-11-13 14:57:54,385 INFO L226 Difference]: Without dead ends: 110 [2024-11-13 14:57:54,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:57:54,390 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 171 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:57:54,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 309 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 14:57:54,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-13 14:57:54,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 69. [2024-11-13 14:57:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.1875) internal successors, (57), 48 states have internal predecessors, (57), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:57:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2024-11-13 14:57:54,402 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 104 [2024-11-13 14:57:54,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:57:54,403 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2024-11-13 14:57:54,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-13 14:57:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2024-11-13 14:57:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 14:57:54,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:57:54,410 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:57:54,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-13 14:57:54,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:54,611 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:57:54,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:57:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1064251480, now seen corresponding path program 1 times [2024-11-13 14:57:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:57:54,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201269015] [2024-11-13 14:57:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:57:54,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:57:54,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:57:54,613 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:57:54,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 14:57:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:57:54,709 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:57:54,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:58:31,721 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 174 proven. 120 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-13 14:58:31,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:00:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 15:00:48,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:00:48,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201269015] [2024-11-13 15:00:48,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201269015] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 15:00:48,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:00:48,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [22] total 31 [2024-11-13 15:00:48,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157663609] [2024-11-13 15:00:48,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:00:48,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:00:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:00:48,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:00:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2024-11-13 15:00:48,638 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 15:00:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:00:57,269 INFO L93 Difference]: Finished difference Result 111 states and 138 transitions. [2024-11-13 15:00:57,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:00:57,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-13 15:00:57,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:00:57,272 INFO L225 Difference]: With dead ends: 111 [2024-11-13 15:00:57,272 INFO L226 Difference]: Without dead ends: 109 [2024-11-13 15:00:57,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=211, Invalid=979, Unknown=0, NotChecked=0, Total=1190 [2024-11-13 15:00:57,273 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 111 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:00:57,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 430 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 15:00:57,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-13 15:00:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2024-11-13 15:00:57,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 71 states have internal predecessors, (85), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 15:00:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2024-11-13 15:00:57,290 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 104 [2024-11-13 15:00:57,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:00:57,291 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2024-11-13 15:00:57,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 15:00:57,291 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2024-11-13 15:00:57,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 15:00:57,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:00:57,293 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:57,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 15:00:57,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:57,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:00:57,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:00:57,494 INFO L85 PathProgramCache]: Analyzing trace with hash 384193110, now seen corresponding path program 1 times [2024-11-13 15:00:57,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:00:57,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029024387] [2024-11-13 15:00:57,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:00:57,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:00:57,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:00:57,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:00:57,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-13 15:00:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:00:57,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 15:00:57,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:02:35,368 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 15:02:35,369 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:02:35,369 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:02:35,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029024387] [2024-11-13 15:02:35,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029024387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:02:35,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:02:35,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:02:35,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677109770] [2024-11-13 15:02:35,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:02:35,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:02:35,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:02:35,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:02:35,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:02:35,371 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 15:02:36,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:02:36,166 INFO L93 Difference]: Finished difference Result 149 states and 189 transitions. [2024-11-13 15:02:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:02:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-13 15:02:36,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:02:36,168 INFO L225 Difference]: With dead ends: 149 [2024-11-13 15:02:36,168 INFO L226 Difference]: Without dead ends: 147 [2024-11-13 15:02:36,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:02:36,168 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 109 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:02:36,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 554 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 15:02:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-13 15:02:36,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 110. [2024-11-13 15:02:36,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 80 states have internal predecessors, (95), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-13 15:02:36,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 143 transitions. [2024-11-13 15:02:36,199 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 143 transitions. Word has length 104 [2024-11-13 15:02:36,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:02:36,199 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 143 transitions. [2024-11-13 15:02:36,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-13 15:02:36,199 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 143 transitions. [2024-11-13 15:02:36,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 15:02:36,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:02:36,201 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:36,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-13 15:02:36,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:36,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:02:36,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:02:36,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1603502776, now seen corresponding path program 1 times [2024-11-13 15:02:36,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:02:36,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304884287] [2024-11-13 15:02:36,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:02:36,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:02:36,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:02:36,405 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:02:36,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5737d8fe-2bbc-4e47-ba14-da0e5401516d/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-13 15:02:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:02:36,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 15:02:36,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 265 proven. 117 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-13 15:03:38,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:07:17,577 WARN L286 SmtUtils]: Spent 38.82s on a formula simplification. DAG size of input: 479 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)