./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu --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 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:43,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:43,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:02:43,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:43,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:43,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:43,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:43,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:43,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:43,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:43,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:43,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:43,446 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:43,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:43,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:43,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:43,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:43,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:43,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:43,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:43,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:43,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:43,453 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:43,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:43,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:43,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:43,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:43,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:43,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:43,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:43,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:43,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:43,482 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:43,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:43,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:43,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:43,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:43,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:43,486 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:43,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 [2023-11-19 08:02:43,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:43,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:43,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:43,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:43,792 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:43,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:46,994 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:47,229 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:47,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:47,239 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/dcfa9fa2f/3bbe1a132f0c4e9eacf0a79c01e5f43c/FLAG255f625d5 [2023-11-19 08:02:47,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/dcfa9fa2f/3bbe1a132f0c4e9eacf0a79c01e5f43c [2023-11-19 08:02:47,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:47,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:47,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:47,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:47,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:47,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fae8c64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47, skipping insertion in model container [2023-11-19 08:02:47,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:47,525 WARN L240 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_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-19 08:02:47,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:47,606 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:47,620 WARN L240 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_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-19 08:02:47,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:47,659 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:47,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47 WrapperNode [2023-11-19 08:02:47,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:47,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:47,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:47,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:47,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,714 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-19 08:02:47,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:47,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:47,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:47,724 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:47,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,739 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,739 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:47,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:47,783 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:47,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:47,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (1/1) ... [2023-11-19 08:02:47,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:47,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:47,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:47,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:02:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:02:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:47,965 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:47,967 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:48,377 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:48,386 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:48,389 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:02:48,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:48 BoogieIcfgContainer [2023-11-19 08:02:48,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:48,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:48,403 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:48,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:48,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:47" (1/3) ... [2023-11-19 08:02:48,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1da93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:48, skipping insertion in model container [2023-11-19 08:02:48,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:47" (2/3) ... [2023-11-19 08:02:48,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f1da93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:48, skipping insertion in model container [2023-11-19 08:02:48,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:48" (3/3) ... [2023-11-19 08:02:48,412 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:48,436 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:48,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:02:48,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:48,492 INFO L357 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, mHoare=true, 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;@49a0471c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:48,492 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:02:48,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:48,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:02:48,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:48,508 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:48,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:02:48,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:48,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-19 08:02:48,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:48,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879015704] [2023-11-19 08:02:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:48,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:02:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:02:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:02:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:02:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:02:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:02:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:02:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:02:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:02:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:02:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:02:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 08:02:48,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:48,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879015704] [2023-11-19 08:02:48,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879015704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:48,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:48,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:48,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765195478] [2023-11-19 08:02:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:02:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:49,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:02:49,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:49,026 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 08:02:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:49,051 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-19 08:02:49,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:02:49,053 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-19 08:02:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:49,062 INFO L225 Difference]: With dead ends: 81 [2023-11-19 08:02:49,062 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 08:02:49,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:49,069 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2023-11-19 08:02:49,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:49,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 08:02:49,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 08:02:49,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-19 08:02:49,113 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-19 08:02:49,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:49,114 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-19 08:02:49,114 INFO L496 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, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 08:02:49,115 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-19 08:02:49,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:02:49,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:49,119 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:49,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:02:49,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:02:49,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-19 08:02:49,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294099245] [2023-11-19 08:02:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:02:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:02:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:02:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:02:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 08:02:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 08:02:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 08:02:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 08:02:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:02:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:02:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:02:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 08:02:49,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:49,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294099245] [2023-11-19 08:02:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294099245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:49,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:49,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:49,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219240328] [2023-11-19 08:02:49,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:49,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:49,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:49,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:49,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:49,438 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 08:02:49,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:49,464 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-19 08:02:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:49,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-19 08:02:49,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:49,467 INFO L225 Difference]: With dead ends: 77 [2023-11-19 08:02:49,468 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 08:02:49,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:49,470 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:02:49,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:49,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 08:02:49,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 08:02:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-19 08:02:49,482 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-19 08:02:49,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:49,485 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-19 08:02:49,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 08:02:49,485 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 08:02:49,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:02:49,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:49,489 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:49,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:02:49,490 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:02:49,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-19 08:02:49,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999621723] [2023-11-19 08:02:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:49,792 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:02:49,793 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:02:49,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:02:49,799 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 08:02:49,803 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:02:49,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:49 BoogieIcfgContainer [2023-11-19 08:02:49,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:02:49,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:02:49,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:02:49,916 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:02:49,916 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:48" (3/4) ... [2023-11-19 08:02:49,919 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:02:49,921 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:02:49,923 INFO L158 Benchmark]: Toolchain (without parser) took 2663.83ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 73.7MB in the beginning and 103.2MB in the end (delta: -29.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,924 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 113.2MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:49,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.62ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 60.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.83ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 57.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,928 INFO L158 Benchmark]: Boogie Preprocessor took 57.49ms. Allocated memory is still 113.2MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,929 INFO L158 Benchmark]: RCFGBuilder took 613.85ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 55.6MB in the beginning and 123.8MB in the end (delta: -68.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,930 INFO L158 Benchmark]: TraceAbstraction took 1513.68ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 103.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-19 08:02:49,932 INFO L158 Benchmark]: Witness Printer took 7.61ms. Allocated memory is still 159.4MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:49,936 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 113.2MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.62ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 60.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.83ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 57.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.49ms. Allocated memory is still 113.2MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.85ms. Allocated memory was 113.2MB in the beginning and 159.4MB in the end (delta: 46.1MB). Free memory was 55.6MB in the beginning and 123.8MB in the end (delta: -68.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1513.68ms. Allocated memory is still 159.4MB. Free memory was 123.0MB in the beginning and 103.2MB in the end (delta: 19.9MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Witness Printer took 7.61ms. Allocated memory is still 159.4MB. Free memory is still 103.2MB. 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 someBinaryFLOATComparisonOperation at line 84. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 128; [L23] unsigned char var_1_4 = 25; [L24] unsigned char var_1_5 = 64; [L25] unsigned char var_1_6 = 8; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 10; [L28] float var_1_9 = 9.6; [L29] float var_1_10 = 99.08; [L30] float var_1_11 = 63.4; [L31] float var_1_12 = 32.125; [L32] signed long int var_1_13 = -8; [L33] signed short int var_1_14 = -2; VAL [isInitial=0, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=25, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L88] isInitial = 1 [L89] FCALL initially() [L90] COND TRUE 1 [L91] FCALL updateLastVariables() [L92] CALL updateVariables() [L62] var_1_4 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L63] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L64] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=64, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L65] var_1_5 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L66] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L67] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=8, var_1_7=0, var_1_8=10, var_1_9=48/5] [L68] var_1_6 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L69] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L70] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=0, var_1_8=10, var_1_9=48/5] [L71] var_1_7 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L72] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L73] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, var_1_10=2477/25, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L74] var_1_10 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L75] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=317/5, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L76] var_1_11 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L77] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=257/8, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L78] var_1_12 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L79] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L92] RET updateVariables() [L93] CALL step() [L37] unsigned char stepLocal_1 = var_1_4; VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=10, var_1_9=48/5] [L38] COND TRUE var_1_5 > stepLocal_1 [L39] var_1_8 = (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))) VAL [isInitial=1, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=-8, var_1_14=-2, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L41] var_1_13 = var_1_7 [L42] var_1_14 = var_1_7 [L43] signed short int stepLocal_0 = var_1_14; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=128, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L44] COND FALSE !(var_1_14 != stepLocal_0) [L47] var_1_1 = ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7))) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L49] signed long int stepLocal_3 = var_1_13; [L50] unsigned char stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L51] COND FALSE !((var_1_10 * var_1_11) > 16.75f) VAL [isInitial=1, stepLocal_0=127, stepLocal_1=126, stepLocal_2=126, stepLocal_3=127, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L93] RET step() [L94] CALL, EXPR property() [L84-L85] return (((((var_1_14 != var_1_14) ? (var_1_1 == ((unsigned char) (var_1_4 + ((((((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) > (var_1_7)) ? (((((var_1_5) < (var_1_6)) ? (var_1_5) : (var_1_6)))) : (var_1_7)))))) : (var_1_1 == ((unsigned char) ((((((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) < (var_1_7)) ? (((((var_1_4) < (var_1_6)) ? (var_1_4) : (var_1_6)))) : (var_1_7)))))) && ((var_1_5 > var_1_4) ? (var_1_8 == ((unsigned char) (128 - ((((10) > (var_1_5)) ? (10) : (var_1_5)))))) : 1)) && (((var_1_10 * var_1_11) > 16.75f) ? ((var_1_7 <= var_1_1) ? ((-8 > var_1_13) ? (var_1_9 == ((float) var_1_12)) : 1) : (var_1_9 == ((float) var_1_12))) : 1)) && (var_1_13 == ((signed long int) var_1_7))) && (var_1_14 == ((signed short int) var_1_7)) ; VAL [\result=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=644, var_1_11=645, var_1_12=646, var_1_13=127, var_1_14=127, var_1_1=126, var_1_4=126, var_1_5=127, var_1_6=127, var_1_7=127, var_1_8=1, var_1_9=48/5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 107 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 440/440 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 [2023-11-19 08:02:49,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu --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 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:52,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:52,889 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:02:52,899 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:52,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:52,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:52,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:52,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:52,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:52,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:52,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:52,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:52,956 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:52,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:52,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:52,960 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:52,960 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:52,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:52,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:52,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:52,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:52,963 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:02:52,964 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:02:52,964 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:02:52,965 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:52,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:52,965 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:52,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:52,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:52,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:52,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:52,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:52,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:52,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:52,970 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:02:52,970 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:02:52,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:52,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:52,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:52,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:52,972 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:02:52,973 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:52,973 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97ab114faeeb647754215ee4eabe50225e9e4c7fb0c1ec399b2dc963df906731 [2023-11-19 08:02:53,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:53,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:53,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:53,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:53,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:53,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:56,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:57,161 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:57,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:57,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/a72c4ed1a/ec897d7d002044f5830a4d762c4e1da1/FLAGcc8baf35d [2023-11-19 08:02:57,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/data/a72c4ed1a/ec897d7d002044f5830a4d762c4e1da1 [2023-11-19 08:02:57,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:57,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:57,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:57,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:57,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:57,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec34100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57, skipping insertion in model container [2023-11-19 08:02:57,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,251 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:57,434 WARN L240 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_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-19 08:02:57,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:57,498 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:57,510 WARN L240 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_f1a66596-81fb-43cf-b245-711b6a1323c3/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-84.i[915,928] [2023-11-19 08:02:57,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:57,556 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:57,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57 WrapperNode [2023-11-19 08:02:57,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:57,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:57,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:57,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:57,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,612 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 94 [2023-11-19 08:02:57,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:57,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:57,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:57,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:57,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:57,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:57,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:57,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:57,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (1/1) ... [2023-11-19 08:02:57,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:57,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:57,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:57,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:57,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:57,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:02:57,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:02:57,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:02:57,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:57,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:57,813 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:57,824 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:58,928 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:58,936 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:58,936 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:02:58,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:58 BoogieIcfgContainer [2023-11-19 08:02:58,940 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:58,943 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:58,943 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:58,947 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:58,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:57" (1/3) ... [2023-11-19 08:02:58,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722b68c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:58, skipping insertion in model container [2023-11-19 08:02:58,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:57" (2/3) ... [2023-11-19 08:02:58,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@722b68c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:58, skipping insertion in model container [2023-11-19 08:02:58,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:58" (3/3) ... [2023-11-19 08:02:58,950 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-84.i [2023-11-19 08:02:58,970 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:58,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:02:59,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:59,028 INFO L357 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, mHoare=true, 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;@2b444330, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:59,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:02:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:59,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:02:59,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:59,044 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:59,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:02:59,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:59,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1290669553, now seen corresponding path program 1 times [2023-11-19 08:02:59,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:02:59,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1833213800] [2023-11-19 08:02:59,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:59,066 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 [2023-11-19 08:02:59,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:02:59,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:02:59,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:02:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:59,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:02:59,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2023-11-19 08:02:59,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:02:59,536 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:02:59,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1833213800] [2023-11-19 08:02:59,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1833213800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:59,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:59,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93100355] [2023-11-19 08:02:59,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:59,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:02:59,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:02:59,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:02:59,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:59,584 INFO L87 Difference]: Start difference. First operand has 44 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 31 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 08:02:59,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:59,627 INFO L93 Difference]: Finished difference Result 81 states and 129 transitions. [2023-11-19 08:02:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:02:59,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-19 08:02:59,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:02:59,638 INFO L225 Difference]: With dead ends: 81 [2023-11-19 08:02:59,638 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 08:02:59,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:59,647 INFO L413 NwaCegarLoop]: 55 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, 55 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 [2023-11-19 08:02:59,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:02:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 08:02:59,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 08:02:59,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:02:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 55 transitions. [2023-11-19 08:02:59,706 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 55 transitions. Word has length 76 [2023-11-19 08:02:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:02:59,706 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 55 transitions. [2023-11-19 08:02:59,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 08:02:59,707 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-19 08:02:59,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:02:59,714 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:02:59,715 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:59,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:59,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:02:59,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:02:59,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:59,924 INFO L85 PathProgramCache]: Analyzing trace with hash -311629705, now seen corresponding path program 1 times [2023-11-19 08:02:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:02:59,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663587185] [2023-11-19 08:02:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:59,925 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 [2023-11-19 08:02:59,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:02:59,926 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:02:59,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:03:00,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:00,291 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:03:00,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:03:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 08:03:00,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:03:00,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:03:00,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663587185] [2023-11-19 08:03:00,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663587185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:00,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:00,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:03:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891954773] [2023-11-19 08:03:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:00,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:03:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:00,365 INFO L87 Difference]: Start difference. First operand 40 states and 55 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 08:03:00,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:03:00,577 INFO L93 Difference]: Finished difference Result 77 states and 107 transitions. [2023-11-19 08:03:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 76 [2023-11-19 08:03:00,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:03:00,588 INFO L225 Difference]: With dead ends: 77 [2023-11-19 08:03:00,588 INFO L226 Difference]: Without dead ends: 40 [2023-11-19 08:03:00,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:00,590 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:03:00,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:03:00,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-11-19 08:03:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-11-19 08:03:00,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 08:03:00,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 54 transitions. [2023-11-19 08:03:00,612 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 54 transitions. Word has length 76 [2023-11-19 08:03:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:03:00,615 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 54 transitions. [2023-11-19 08:03:00,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-11-19 08:03:00,615 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 08:03:00,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 08:03:00,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:03:00,619 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:00,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:03:00,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:03:00,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:03:00,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:00,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1463377657, now seen corresponding path program 1 times [2023-11-19 08:03:00,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:03:00,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [179697381] [2023-11-19 08:03:00,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:00,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 08:03:00,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:03:00,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:03:00,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1a66596-81fb-43cf-b245-711b6a1323c3/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:03:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:01,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 08:03:01,094 INFO L285 TraceCheckSpWp]: Computing forward predicates...