./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:00:59,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:00:59,252 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:00:59,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:00:59,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:00:59,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:00:59,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:00:59,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:00:59,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:00:59,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:00:59,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:00:59,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:00:59,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:00:59,297 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:00:59,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:00:59,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:00:59,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:00:59,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:00:59,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:00:59,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:00:59,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:00:59,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:00:59,301 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 -> b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e [2024-11-13 15:00:59,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:00:59,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:00:59,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:00:59,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:00:59,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:00:59,663 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i Unable to find full path for "g++" [2024-11-13 15:01:01,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:01:02,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:01:02,116 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2024-11-13 15:01:02,131 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/494611175/943ac16e26c044fda3620e465381656d/FLAGe5473ed1f [2024-11-13 15:01:02,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/494611175/943ac16e26c044fda3620e465381656d [2024-11-13 15:01:02,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:01:02,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:01:02,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:02,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:01:02,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:01:02,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee0b70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02, skipping insertion in model container [2024-11-13 15:01:02,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:01:02,652 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2024-11-13 15:01:02,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:02,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:01:02,750 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2024-11-13 15:01:02,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:02,804 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:01:02,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02 WrapperNode [2024-11-13 15:01:02,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:02,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:02,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:01:02,808 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:01:02,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,859 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 92 [2024-11-13 15:01:02,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:02,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:01:02,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:01:02,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:01:02,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,910 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 15:01:02,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:01:02,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:01:02,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:01:02,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:01:02,939 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (1/1) ... [2024-11-13 15:01:02,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:01:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:01:02,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:01:02,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:01:03,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:01:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:01:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:01:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:01:03,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:01:03,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:01:03,111 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:01:03,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:01:03,355 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 15:01:03,356 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:01:03,366 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:01:03,366 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:01:03,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:03 BoogieIcfgContainer [2024-11-13 15:01:03,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:01:03,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:01:03,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:01:03,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:01:03,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:01:02" (1/3) ... [2024-11-13 15:01:03,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5062d2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:03, skipping insertion in model container [2024-11-13 15:01:03,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:02" (2/3) ... [2024-11-13 15:01:03,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5062d2b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:03, skipping insertion in model container [2024-11-13 15:01:03,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:03" (3/3) ... [2024-11-13 15:01:03,377 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i [2024-11-13 15:01:03,395 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:01:03,396 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:01:03,463 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:01:03,477 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;@5f1b98e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:01:03,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:01:03,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:01:03,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:01:03,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:03,493 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:03,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:03,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash 742773186, now seen corresponding path program 1 times [2024-11-13 15:01:03,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:03,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810770271] [2024-11-13 15:01:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:01:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:01:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 15:01:03,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:01:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 15:01:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:01:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:01:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:01:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:03,900 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 15:01:03,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:03,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810770271] [2024-11-13 15:01:03,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810770271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:03,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:03,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:03,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804731855] [2024-11-13 15:01:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:03,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:01:03,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:03,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:01:03,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:01:03,944 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:03,979 INFO L93 Difference]: Finished difference Result 77 states and 120 transitions. [2024-11-13 15:01:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:01:03,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2024-11-13 15:01:03,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:03,992 INFO L225 Difference]: With dead ends: 77 [2024-11-13 15:01:03,992 INFO L226 Difference]: Without dead ends: 36 [2024-11-13 15:01:03,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 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 15:01:04,002 INFO L432 NwaCegarLoop]: 53 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, 53 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 15:01:04,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:01:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-13 15:01:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-13 15:01:04,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:01:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-13 15:01:04,060 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 62 [2024-11-13 15:01:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:04,060 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-13 15:01:04,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:04,063 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-13 15:01:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:01:04,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:04,069 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:04,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:01:04,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:04,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:04,071 INFO L85 PathProgramCache]: Analyzing trace with hash 798402372, now seen corresponding path program 1 times [2024-11-13 15:01:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:04,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466401041] [2024-11-13 15:01:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:04,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 15:01:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-13 15:01:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-13 15:01:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-13 15:01:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-13 15:01:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 15:01:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 15:01:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-13 15:01:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:01:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 15:01:04,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:01:04,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466401041] [2024-11-13 15:01:04,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466401041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:04,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:04,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:01:04,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589906195] [2024-11-13 15:01:04,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:04,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:01:04,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:01:04,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:01:04,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:01:04,693 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:04,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:04,920 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2024-11-13 15:01:04,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:01:04,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 62 [2024-11-13 15:01:04,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:04,922 INFO L225 Difference]: With dead ends: 102 [2024-11-13 15:01:04,922 INFO L226 Difference]: Without dead ends: 69 [2024-11-13 15:01:04,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:01:04,924 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 35 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:04,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 171 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:01:04,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-13 15:01:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2024-11-13 15:01:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 15:01:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2024-11-13 15:01:04,940 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 62 [2024-11-13 15:01:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:04,941 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2024-11-13 15:01:04,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2024-11-13 15:01:04,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:01:04,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:04,943 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:04,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:01:04,943 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:04,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:04,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1975179841, now seen corresponding path program 1 times [2024-11-13 15:01:04,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:01:04,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444281066] [2024-11-13 15:01:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:04,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:01:05,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:05,031 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:01:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:01:05,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:01:05,112 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:01:05,113 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:01:05,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:01:05,119 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-13 15:01:05,191 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:01:05,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:01:05 BoogieIcfgContainer [2024-11-13 15:01:05,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:01:05,202 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:01:05,202 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:01:05,202 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:01:05,203 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:03" (3/4) ... [2024-11-13 15:01:05,206 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:01:05,209 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:01:05,212 INFO L158 Benchmark]: Toolchain (without parser) took 2800.37ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 45.5MB in the end (delta: 47.5MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-11-13 15:01:05,212 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:01:05,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.82ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 80.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:05,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.80ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:05,215 INFO L158 Benchmark]: Boogie Preprocessor took 72.27ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:01:05,216 INFO L158 Benchmark]: RCFGBuilder took 430.16ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 64.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:05,216 INFO L158 Benchmark]: TraceAbstraction took 1831.37ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 46.1MB in the end (delta: 17.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-13 15:01:05,216 INFO L158 Benchmark]: Witness Printer took 7.05ms. Allocated memory is still 117.4MB. Free memory was 46.1MB in the beginning and 45.5MB in the end (delta: 544.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:01:05,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 74.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.82ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 80.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.80ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.27ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 430.16ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 64.4MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1831.37ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 46.1MB in the end (delta: 17.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 7.05ms. Allocated memory is still 117.4MB. Free memory was 46.1MB in the beginning and 45.5MB in the end (delta: 544.8kB). 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 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 83. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -128; [L23] unsigned short int var_1_3 = 16; [L24] unsigned long int var_1_7 = 1000; [L25] signed char var_1_8 = -4; [L26] signed short int var_1_9 = 2; [L27] unsigned char var_1_10 = 1; [L28] unsigned char var_1_11 = 0; [L29] double var_1_12 = 0.95; [L30] double var_1_13 = 9.8; [L31] signed short int last_1_var_1_9 = 2; [L32] unsigned char last_1_var_1_10 = 1; VAL [isInitial=0, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_3=16, var_1_7=1000, var_1_8=-4, var_1_9=2] [L87] isInitial = 1 [L88] FCALL initially() [L89] int k_loop; [L90] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_3=16, var_1_7=1000, var_1_8=-4, var_1_9=2] [L90] COND TRUE k_loop < 1 [L91] CALL updateLastVariables() [L79] last_1_var_1_9 = var_1_9 [L80] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_3=16, var_1_7=1000, var_1_8=-4, var_1_9=2] [L91] RET updateLastVariables() [L92] CALL updateVariables() [L63] var_1_3 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L65] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L65] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_7=1000, var_1_8=-4, var_1_9=2] [L66] var_1_7 = __VERIFIER_nondet_ulong() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L68] CALL assume_abort_if_not(var_1_7 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L68] RET assume_abort_if_not(var_1_7 <= 4294967295) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-4, var_1_9=2] [L69] var_1_8 = __VERIFIER_nondet_char() [L70] CALL assume_abort_if_not(var_1_8 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L70] RET assume_abort_if_not(var_1_8 >= -127) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L71] CALL assume_abort_if_not(var_1_8 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L71] RET assume_abort_if_not(var_1_8 <= 126) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=0, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L72] var_1_11 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L73] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L74] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L74] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_13=49/5, var_1_1=-128, var_1_8=-127, var_1_9=2] [L75] var_1_13 = __VERIFIER_nondet_double() [L76] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-128, var_1_8=-127, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-128, var_1_8=-127, var_1_9=2] [L76] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-128, var_1_8=-127, var_1_9=2] [L92] RET updateVariables() [L93] CALL step() [L36] signed long int stepLocal_2 = last_1_var_1_9; [L37] unsigned char stepLocal_1 = (- var_1_7) <= last_1_var_1_9; [L38] unsigned char stepLocal_0 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, stepLocal_0=1, stepLocal_2=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-128, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L39] COND TRUE stepLocal_0 || ((~ last_1_var_1_9) >= last_1_var_1_9) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, stepLocal_2=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-128, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L40] COND FALSE !(last_1_var_1_9 < stepLocal_2) [L49] var_1_1 = var_1_8 VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=1, var_1_11=-256, var_1_12=19/20, var_1_1=-127, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L54] var_1_10 = var_1_11 [L55] var_1_12 = var_1_13 VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=-256, var_1_11=-256, var_1_12=4294967298, var_1_13=4294967298, var_1_1=-127, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L56] COND FALSE !(\read(var_1_10)) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=-256, var_1_11=-256, var_1_12=4294967298, var_1_13=4294967298, var_1_1=-127, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L93] RET step() [L94] CALL, EXPR property() [L83-L84] return ((((last_1_var_1_10 || ((~ last_1_var_1_9) >= last_1_var_1_9)) ? ((last_1_var_1_9 < last_1_var_1_9) ? ((! last_1_var_1_10) ? (((last_1_var_1_9 > last_1_var_1_9) && ((- var_1_7) <= last_1_var_1_9)) ? (var_1_1 == ((signed char) var_1_8)) : (var_1_1 == ((signed char) var_1_8))) : 1) : (var_1_1 == ((signed char) var_1_8))) : (var_1_1 == ((signed char) var_1_8))) && (var_1_10 ? ((((4131182089u - var_1_3) - 200u) < var_1_1) ? (var_1_9 == ((signed short int) var_1_8)) : 1) : 1)) && (var_1_10 == ((unsigned char) var_1_11))) && (var_1_12 == ((double) var_1_13)) ; VAL [\result=0, isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=-256, var_1_11=-256, var_1_12=4294967298, var_1_13=4294967298, var_1_1=-127, var_1_3=0, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=-256, var_1_11=-256, var_1_12=4294967298, var_1_13=4294967298, var_1_1=-127, var_1_3=0, var_1_7=4294967293, var_1_8=-127, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=1, last_1_var_1_9=2, var_1_10=-256, var_1_11=-256, var_1_12=4294967298, var_1_13=4294967298, var_1_1=-127, var_1_3=0, var_1_7=4294967293, var_1_8=-127, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 98 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 288/288 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 15:01:05,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:01:08,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:01:08,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:01:08,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:01:08,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:01:08,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:01:08,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:01:08,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:01:08,411 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:01:08,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:01:08,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:01:08,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:01:08,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:01:08,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:01:08,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:01:08,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:01:08,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:01:08,413 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:01:08,413 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:01:08,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:01:08,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:01:08,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:01:08,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:01:08,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:01:08,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:01:08,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:01:08,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:01:08,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:01:08,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:01:08,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:01:08,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:01:08,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:01:08,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:01:08,418 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 -> b8e52945473f8a7c8eae1b0fc6b7ff8d7bdd237133fbc5cccb42de41250f237e [2024-11-13 15:01:08,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:01:08,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:01:08,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:01:08,809 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:01:08,809 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:01:08,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i Unable to find full path for "g++" [2024-11-13 15:01:11,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:01:11,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:01:11,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i [2024-11-13 15:01:11,439 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/3782145b1/54d65ff227c046e6bea911fdcb5446f7/FLAG7ca2ee5e9 [2024-11-13 15:01:11,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/data/3782145b1/54d65ff227c046e6bea911fdcb5446f7 [2024-11-13 15:01:11,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:01:11,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:01:11,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:11,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:01:11,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:01:11,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49139909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11, skipping insertion in model container [2024-11-13 15:01:11,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:01:11,705 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2024-11-13 15:01:11,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:11,809 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:01:11,828 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_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-15.i[915,928] [2024-11-13 15:01:11,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:01:11,910 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:01:11,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11 WrapperNode [2024-11-13 15:01:11,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:01:11,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:11,913 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:01:11,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:01:11,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,974 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-13 15:01:11,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:01:11,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:01:11,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:01:11,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:01:11,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:11,997 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,011 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 15:01:12,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,028 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:01:12,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:01:12,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:01:12,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:01:12,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (1/1) ... [2024-11-13 15:01:12,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:01:12,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:01:12,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:01:12,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:01:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:01:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:01:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:01:12,115 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:01:12,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:01:12,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:01:12,251 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:01:12,254 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:01:12,627 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 15:01:12,628 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:01:12,643 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:01:12,645 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:01:12,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:12 BoogieIcfgContainer [2024-11-13 15:01:12,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:01:12,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:01:12,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:01:12,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:01:12,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:01:11" (1/3) ... [2024-11-13 15:01:12,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533a4061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:12, skipping insertion in model container [2024-11-13 15:01:12,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:01:11" (2/3) ... [2024-11-13 15:01:12,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@533a4061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:01:12, skipping insertion in model container [2024-11-13 15:01:12,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:12" (3/3) ... [2024-11-13 15:01:12,664 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i [2024-11-13 15:01:12,686 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:01:12,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-15.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:01:12,784 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:01:12,803 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;@39c8f86e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:01:12,804 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:01:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:01:12,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:01:12,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:12,824 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:12,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:12,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 742773186, now seen corresponding path program 1 times [2024-11-13 15:01:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:12,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481959338] [2024-11-13 15:01:12,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:12,855 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 15:01:12,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:12,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:12,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:13,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:01:13,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:13,143 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-13 15:01:13,143 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:13,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:13,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481959338] [2024-11-13 15:01:13,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481959338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:13,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:13,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:01:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907295690] [2024-11-13 15:01:13,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:13,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:01:13,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:01:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:01:13,214 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 29 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:13,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:13,252 INFO L93 Difference]: Finished difference Result 77 states and 120 transitions. [2024-11-13 15:01:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:01:13,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2024-11-13 15:01:13,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:13,263 INFO L225 Difference]: With dead ends: 77 [2024-11-13 15:01:13,264 INFO L226 Difference]: Without dead ends: 36 [2024-11-13 15:01:13,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 61 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 15:01:13,277 INFO L432 NwaCegarLoop]: 53 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, 53 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 15:01:13,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:01:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-13 15:01:13,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-13 15:01:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:01:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-13 15:01:13,327 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 62 [2024-11-13 15:01:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:13,328 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-13 15:01:13,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-13 15:01:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 15:01:13,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:13,331 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:13,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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)] Ended with exit code 0 [2024-11-13 15:01:13,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:13,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:13,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:13,537 INFO L85 PathProgramCache]: Analyzing trace with hash 798402372, now seen corresponding path program 1 times [2024-11-13 15:01:13,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:13,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141434732] [2024-11-13 15:01:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:13,538 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 15:01:13,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:13,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:13,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:13,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:01:13,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 15:01:14,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:14,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:14,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141434732] [2024-11-13 15:01:14,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141434732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:14,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:14,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:01:14,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064671783] [2024-11-13 15:01:14,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:14,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:01:14,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:01:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:01:14,135 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:14,413 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2024-11-13 15:01:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:01:14,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 62 [2024-11-13 15:01:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:14,417 INFO L225 Difference]: With dead ends: 102 [2024-11-13 15:01:14,417 INFO L226 Difference]: Without dead ends: 69 [2024-11-13 15:01:14,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:01:14,419 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 32 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:14,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 169 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:01:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-11-13 15:01:14,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 59. [2024-11-13 15:01:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 38 states have internal predecessors, (45), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-13 15:01:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2024-11-13 15:01:14,438 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 62 [2024-11-13 15:01:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:14,439 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2024-11-13 15:01:14,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:14,439 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2024-11-13 15:01:14,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 15:01:14,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:14,441 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:14,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:14,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:14,644 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1975179841, now seen corresponding path program 1 times [2024-11-13 15:01:14,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:14,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452302633] [2024-11-13 15:01:14,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:14,646 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 15:01:14,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:14,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:14,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:14,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 15:01:14,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-13 15:01:23,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:23,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:23,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452302633] [2024-11-13 15:01:23,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452302633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:23,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:23,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:01:23,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890422897] [2024-11-13 15:01:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:23,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 15:01:23,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:23,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 15:01:23,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:01:23,301 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:24,999 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2024-11-13 15:01:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 15:01:25,001 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2024-11-13 15:01:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:25,003 INFO L225 Difference]: With dead ends: 134 [2024-11-13 15:01:25,003 INFO L226 Difference]: Without dead ends: 101 [2024-11-13 15:01:25,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2024-11-13 15:01:25,008 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 70 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:25,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 233 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:01:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-13 15:01:25,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 92. [2024-11-13 15:01:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 62 states have (on average 1.1129032258064515) internal successors, (69), 63 states have internal predecessors, (69), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-13 15:01:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 113 transitions. [2024-11-13 15:01:25,044 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 113 transitions. Word has length 63 [2024-11-13 15:01:25,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:25,045 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 113 transitions. [2024-11-13 15:01:25,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 12 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-13 15:01:25,045 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions. [2024-11-13 15:01:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 15:01:25,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:01:25,051 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:25,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:01:25,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:25,252 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:01:25,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:01:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1442501147, now seen corresponding path program 1 times [2024-11-13 15:01:25,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:01:25,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72020122] [2024-11-13 15:01:25,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:01:25,254 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 15:01:25,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:01:25,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:25,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:25,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:01:25,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:01:25,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:01:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-13 15:01:25,592 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:01:25,592 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:01:25,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72020122] [2024-11-13 15:01:25,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72020122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:01:25,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:01:25,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:01:25,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043628] [2024-11-13 15:01:25,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:01:25,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:01:25,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:01:25,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:01:25,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:01:25,598 INFO L87 Difference]: Start difference. First operand 92 states and 113 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:01:25,814 INFO L93 Difference]: Finished difference Result 135 states and 163 transitions. [2024-11-13 15:01:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:01:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-13 15:01:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:01:25,816 INFO L225 Difference]: With dead ends: 135 [2024-11-13 15:01:25,816 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:01:25,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:01:25,818 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 32 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:01:25,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 51 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:01:25,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:01:25,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:01:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:01:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:01:25,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2024-11-13 15:01:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:01:25,820 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:01:25,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-13 15:01:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:01:25,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:01:25,824 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:01:25,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:26,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/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 15:01:26,031 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:01:26,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 15:01:28,194 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:01:28,210 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,211 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,211 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,211 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 15:01:28,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,212 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 15:01:28,213 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,221 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 15:01:28,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-13 15:01:28,222 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-13 15:01:28,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:01:28 BoogieIcfgContainer [2024-11-13 15:01:28,226 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:01:28,227 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:01:28,227 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:01:28,228 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:01:28,229 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:01:12" (3/4) ... [2024-11-13 15:01:28,232 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:01:28,238 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 15:01:28,246 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-13 15:01:28,247 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 15:01:28,247 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:01:28,247 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:01:28,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:01:28,377 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:01:28,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:01:28,378 INFO L158 Benchmark]: Toolchain (without parser) took 16906.33ms. Allocated memory was 109.1MB in the beginning and 402.7MB in the end (delta: 293.6MB). Free memory was 85.3MB in the beginning and 322.9MB in the end (delta: -237.6MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,383 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:01:28,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.22ms. Allocated memory is still 109.1MB. Free memory was 85.3MB in the beginning and 72.5MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,384 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.05ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 71.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,384 INFO L158 Benchmark]: Boogie Preprocessor took 56.87ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 69.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:01:28,384 INFO L158 Benchmark]: RCFGBuilder took 609.85ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 55.4MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,385 INFO L158 Benchmark]: TraceAbstraction took 15575.06ms. Allocated memory was 109.1MB in the beginning and 402.7MB in the end (delta: 293.6MB). Free memory was 54.9MB in the beginning and 331.1MB in the end (delta: -276.2MB). Peak memory consumption was 197.8MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,385 INFO L158 Benchmark]: Witness Printer took 149.64ms. Allocated memory is still 402.7MB. Free memory was 331.1MB in the beginning and 322.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:01:28,390 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.22ms. Allocated memory is still 109.1MB. Free memory was 85.3MB in the beginning and 72.5MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.05ms. Allocated memory is still 109.1MB. Free memory was 72.5MB in the beginning and 71.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.87ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 69.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.85ms. Allocated memory is still 109.1MB. Free memory was 69.0MB in the beginning and 55.4MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15575.06ms. Allocated memory was 109.1MB in the beginning and 402.7MB in the end (delta: 293.6MB). Free memory was 54.9MB in the beginning and 331.1MB in the end (delta: -276.2MB). Peak memory consumption was 197.8MB. Max. memory is 16.1GB. * Witness Printer took 149.64ms. Allocated memory is still 402.7MB. Free memory was 331.1MB in the beginning and 322.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.3s, OverallIterations: 4, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 332 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 286 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 174 mSDtfsCounter, 286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=3, InterpolantAutomatonStates: 30, 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, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 247 ConstructedInterpolants, 0 QuantifiedInterpolants, 887 SizeOfPredicates, 15 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 576/576 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: ((((((var_1_9 == 2) && (2 == last_1_var_1_9)) && (1 == var_1_10)) && (last_1_var_1_10 == 1)) && (var_1_11 <= 0)) || ((((((var_1_1 == var_1_8) && (var_1_9 == 2)) && (2 == last_1_var_1_9)) && (var_1_13 == var_1_12)) && (var_1_10 == var_1_11)) && (var_1_11 <= 0))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: ((var_1_9 == 2) && (2 == last_1_var_1_9)) Ensures: ((((var_1_9 == 2) && (2 == last_1_var_1_9)) && (0 != cond)) && ((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_3 == \old(var_1_3))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (last_1_var_1_9 == \old(last_1_var_1_9))) && (last_1_var_1_10 == \old(last_1_var_1_10)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 15:01:28,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b8779a3-f5ce-4b71-af35-6f5f6fed7ba1/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE