./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 883c6f5172a96f0287ac7e513094d32a0853666f3578c9a6dcc19d38a0beb57e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:00,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:01,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 21:59:01,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:01,093 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:01,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:01,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:01,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:01,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:01,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:01,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:01,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:01,126 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:01,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:01,127 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:01,128 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:59:01,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:01,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:59:01,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:01,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:01,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:01,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:01,132 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:59:01,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:01,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:01,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:01,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:01,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:01,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:01,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:01,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:01,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:01,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:01,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:59:01,138 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:01,139 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:01,139 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:01,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:01,140 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:01,141 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 883c6f5172a96f0287ac7e513094d32a0853666f3578c9a6dcc19d38a0beb57e [2023-11-06 21:59:01,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:01,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:01,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:01,471 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:01,472 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:01,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:04,625 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:04,932 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:04,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:04,951 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/cd706c054/a454599da54348f0b85af758ef7a388f/FLAG2ac35d06b [2023-11-06 21:59:04,968 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/cd706c054/a454599da54348f0b85af758ef7a388f [2023-11-06 21:59:04,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:04,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:04,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:04,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:04,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:04,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:04" (1/1) ... [2023-11-06 21:59:04,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568c81ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:04, skipping insertion in model container [2023-11-06 21:59:04,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:04" (1/1) ... [2023-11-06 21:59:05,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:05,181 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i[913,926] [2023-11-06 21:59:05,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:05,288 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:05,300 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i[913,926] [2023-11-06 21:59:05,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:05,346 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:05,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05 WrapperNode [2023-11-06 21:59:05,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:05,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:05,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:05,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:05,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,423 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 149 [2023-11-06 21:59:05,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:05,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:05,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:05,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:05,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,462 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:05,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:05,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:05,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:05,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (1/1) ... [2023-11-06 21:59:05,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:05,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:59:05,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:59:05,586 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:59:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:59:05,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:05,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:05,715 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:05,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:06,077 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:59:06,084 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:59:06,084 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:59:06,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:06 BoogieIcfgContainer [2023-11-06 21:59:06,087 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:59:06,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:59:06,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:59:06,096 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:59:06,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:04" (1/3) ... [2023-11-06 21:59:06,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aebe531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:06, skipping insertion in model container [2023-11-06 21:59:06,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:05" (2/3) ... [2023-11-06 21:59:06,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aebe531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:06, skipping insertion in model container [2023-11-06 21:59:06,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:06" (3/3) ... [2023-11-06 21:59:06,106 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:06,121 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:59:06,122 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:59:06,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:59:06,182 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=LoopsAndPotentialCycles, 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;@2c33a12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:59:06,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:59:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 21:59:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 21:59:06,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:06,201 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:06,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:06,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:06,207 INFO L85 PathProgramCache]: Analyzing trace with hash 51145013, now seen corresponding path program 1 times [2023-11-06 21:59:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342048791] [2023-11-06 21:59:06,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:06,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:06,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:06,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342048791] [2023-11-06 21:59:06,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 21:59:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590561362] [2023-11-06 21:59:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:06,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:06,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:06,594 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:06,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:59:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:06,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:59:06,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:06,897 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-11-06 21:59:06,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:06,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590561362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:06,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:06,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:06,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270720584] [2023-11-06 21:59:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:06,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:59:06,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:06,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:59:06,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:59:06,959 INFO L87 Difference]: Start difference. First operand has 61 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 21:59:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:07,002 INFO L93 Difference]: Finished difference Result 113 states and 189 transitions. [2023-11-06 21:59:07,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:59:07,004 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2023-11-06 21:59:07,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:07,015 INFO L225 Difference]: With dead ends: 113 [2023-11-06 21:59:07,015 INFO L226 Difference]: Without dead ends: 55 [2023-11-06 21:59:07,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:59:07,025 INFO L413 NwaCegarLoop]: 80 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, 80 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 [2023-11-06 21:59:07,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:59:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-06 21:59:07,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-11-06 21:59:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 21:59:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2023-11-06 21:59:07,079 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 94 [2023-11-06 21:59:07,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:07,080 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2023-11-06 21:59:07,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 21:59:07,080 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2023-11-06 21:59:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 21:59:07,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:07,086 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:07,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:07,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:07,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:07,294 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:07,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1211175855, now seen corresponding path program 1 times [2023-11-06 21:59:07,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:07,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627784830] [2023-11-06 21:59:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:07,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:07,345 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:59:07,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [275607301] [2023-11-06 21:59:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:07,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:07,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:07,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:07,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:59:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:07,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:59:07,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:07,701 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:07,701 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:07,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627784830] [2023-11-06 21:59:07,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:59:07,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275607301] [2023-11-06 21:59:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275607301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:07,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:07,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:59:07,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138088981] [2023-11-06 21:59:07,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:07,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:59:07,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:07,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:59:07,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:59:07,707 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:07,827 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2023-11-06 21:59:07,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:59:07,828 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2023-11-06 21:59:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:07,832 INFO L225 Difference]: With dead ends: 159 [2023-11-06 21:59:07,832 INFO L226 Difference]: Without dead ends: 107 [2023-11-06 21:59:07,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:59:07,835 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 31 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:07,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 190 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:59:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-06 21:59:07,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2023-11-06 21:59:07,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 76 states have (on average 1.355263157894737) internal successors, (103), 76 states have internal predecessors, (103), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 21:59:07,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 155 transitions. [2023-11-06 21:59:07,861 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 155 transitions. Word has length 94 [2023-11-06 21:59:07,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:07,862 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 155 transitions. [2023-11-06 21:59:07,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:07,863 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 155 transitions. [2023-11-06 21:59:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 21:59:07,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:07,866 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:07,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:08,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:08,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:08,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:08,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1912240433, now seen corresponding path program 1 times [2023-11-06 21:59:08,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:08,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121618701] [2023-11-06 21:59:08,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:08,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:08,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:59:08,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221453652] [2023-11-06 21:59:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:08,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:08,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:08,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:08,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:59:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:08,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 21:59:08,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:09,083 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:09,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:09,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:09,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121618701] [2023-11-06 21:59:09,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:59:09,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221453652] [2023-11-06 21:59:09,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221453652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:09,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:09,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 21:59:09,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505175053] [2023-11-06 21:59:09,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:09,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:59:09,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:59:09,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:59:09,095 INFO L87 Difference]: Start difference. First operand 105 states and 155 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:09,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:09,904 INFO L93 Difference]: Finished difference Result 668 states and 986 transitions. [2023-11-06 21:59:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 21:59:09,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2023-11-06 21:59:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:09,913 INFO L225 Difference]: With dead ends: 668 [2023-11-06 21:59:09,913 INFO L226 Difference]: Without dead ends: 566 [2023-11-06 21:59:09,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-06 21:59:09,917 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 445 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:09,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 555 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:59:09,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-11-06 21:59:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 356. [2023-11-06 21:59:10,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 257 states have (on average 1.350194552529183) internal successors, (347), 257 states have internal predecessors, (347), 91 states have call successors, (91), 7 states have call predecessors, (91), 7 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2023-11-06 21:59:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 529 transitions. [2023-11-06 21:59:10,034 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 529 transitions. Word has length 94 [2023-11-06 21:59:10,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:10,035 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 529 transitions. [2023-11-06 21:59:10,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 529 transitions. [2023-11-06 21:59:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 21:59:10,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:10,039 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:10,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:10,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:10,246 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:10,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:10,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1702668493, now seen corresponding path program 1 times [2023-11-06 21:59:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:10,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672866209] [2023-11-06 21:59:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:10,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:59:10,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408576444] [2023-11-06 21:59:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:10,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:10,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:10,294 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:10,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:59:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:10,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 21:59:10,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:10,688 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:10,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:10,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:10,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672866209] [2023-11-06 21:59:10,689 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:59:10,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408576444] [2023-11-06 21:59:10,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408576444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:10,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:10,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:59:10,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621923536] [2023-11-06 21:59:10,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:10,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:59:10,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:10,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:59:10,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:10,693 INFO L87 Difference]: Start difference. First operand 356 states and 529 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:11,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:11,020 INFO L93 Difference]: Finished difference Result 1394 states and 2081 transitions. [2023-11-06 21:59:11,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 21:59:11,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2023-11-06 21:59:11,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:11,039 INFO L225 Difference]: With dead ends: 1394 [2023-11-06 21:59:11,040 INFO L226 Difference]: Without dead ends: 1041 [2023-11-06 21:59:11,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:59:11,048 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 158 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:11,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 901 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:59:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-11-06 21:59:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 504. [2023-11-06 21:59:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 377 states have (on average 1.3793103448275863) internal successors, (520), 377 states have internal predecessors, (520), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-06 21:59:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 754 transitions. [2023-11-06 21:59:11,156 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 754 transitions. Word has length 94 [2023-11-06 21:59:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:11,157 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 754 transitions. [2023-11-06 21:59:11,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 754 transitions. [2023-11-06 21:59:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 21:59:11,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:11,160 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:11,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:11,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:11,370 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:11,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:11,370 INFO L85 PathProgramCache]: Analyzing trace with hash -18865675, now seen corresponding path program 1 times [2023-11-06 21:59:11,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:11,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175814181] [2023-11-06 21:59:11,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:11,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:11,403 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:59:11,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716914550] [2023-11-06 21:59:11,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:11,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:11,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:11,410 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:11,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:59:11,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:11,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:59:11,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:11,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:11,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175814181] [2023-11-06 21:59:11,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 21:59:11,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716914550] [2023-11-06 21:59:11,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716914550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:11,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:11,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:59:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016918408] [2023-11-06 21:59:11,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:11,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:11,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:11,612 INFO L87 Difference]: Start difference. First operand 504 states and 754 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:11,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:11,701 INFO L93 Difference]: Finished difference Result 1249 states and 1859 transitions. [2023-11-06 21:59:11,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:11,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2023-11-06 21:59:11,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:11,709 INFO L225 Difference]: With dead ends: 1249 [2023-11-06 21:59:11,709 INFO L226 Difference]: Without dead ends: 748 [2023-11-06 21:59:11,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:11,712 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 23 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:11,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 142 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:59:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-06 21:59:11,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 650. [2023-11-06 21:59:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 523 states have (on average 1.3938814531548758) internal successors, (729), 523 states have internal predecessors, (729), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-06 21:59:11,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 963 transitions. [2023-11-06 21:59:11,807 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 963 transitions. Word has length 95 [2023-11-06 21:59:11,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:11,808 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 963 transitions. [2023-11-06 21:59:11,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 963 transitions. [2023-11-06 21:59:11,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 21:59:11,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:11,811 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:11,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:12,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:12,019 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:12,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:12,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1756141687, now seen corresponding path program 1 times [2023-11-06 21:59:12,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:12,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270858899] [2023-11-06 21:59:12,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:12,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:12,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 21:59:12,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195490078] [2023-11-06 21:59:12,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:12,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:12,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:12,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:12,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 21:59:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:12,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:59:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:59:12,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:59:12,513 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:59:12,514 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 21:59:12,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:12,731 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 21:59:12,736 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:59:12,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:59:12 BoogieIcfgContainer [2023-11-06 21:59:12,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:59:12,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:59:12,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:59:12,875 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:59:12,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:06" (3/4) ... [2023-11-06 21:59:12,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 21:59:12,878 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:59:12,879 INFO L158 Benchmark]: Toolchain (without parser) took 7906.26ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 123.2MB in the beginning and 75.1MB in the end (delta: 48.1MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,879 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:59:12,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.06ms. Allocated memory is still 153.1MB. Free memory was 122.7MB in the beginning and 109.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,880 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.94ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 106.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,880 INFO L158 Benchmark]: Boogie Preprocessor took 66.30ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,880 INFO L158 Benchmark]: RCFGBuilder took 588.32ms. Allocated memory is still 153.1MB. Free memory was 104.3MB in the beginning and 86.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,881 INFO L158 Benchmark]: TraceAbstraction took 6783.79ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 84.9MB in the beginning and 75.1MB in the end (delta: 9.8MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-11-06 21:59:12,881 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 186.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:59:12,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.06ms. Allocated memory is still 153.1MB. Free memory was 122.7MB in the beginning and 109.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.94ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 106.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.30ms. Allocated memory is still 153.1MB. Free memory was 106.4MB in the beginning and 104.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 588.32ms. Allocated memory is still 153.1MB. Free memory was 104.3MB in the beginning and 86.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6783.79ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 84.9MB in the beginning and 75.1MB in the end (delta: 9.8MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 186.6MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 122, overapproximation of someBinaryFLOATComparisonOperation at line 122. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 256.5; [L23] unsigned char var_1_2 = 0; [L24] double var_1_3 = 7.5; [L25] double var_1_4 = 256.2; [L26] double var_1_5 = 2.75; [L27] signed long int var_1_6 = -64; [L28] double var_1_7 = 8.05; [L29] float var_1_8 = 5.25; [L30] signed long int var_1_11 = 4; [L31] unsigned short int var_1_14 = 10000; [L32] unsigned short int var_1_16 = 5; [L33] unsigned short int var_1_17 = 4; [L34] unsigned char var_1_18 = 100; [L35] unsigned char var_1_19 = 1; [L36] unsigned char var_1_20 = 8; [L37] double last_1_var_1_1 = 256.5; [L38] float last_1_var_1_8 = 5.25; [L39] signed long int last_1_var_1_11 = 4; [L40] unsigned short int last_1_var_1_14 = 10000; [L41] unsigned short int last_1_var_1_17 = 4; [L42] unsigned char last_1_var_1_18 = 100; VAL [isInitial=0, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L126] isInitial = 1 [L127] FCALL initially() [L128] COND TRUE 1 [L129] CALL updateLastVariables() [L114] last_1_var_1_1 = var_1_1 [L115] last_1_var_1_8 = var_1_8 [L116] last_1_var_1_11 = var_1_11 [L117] last_1_var_1_14 = var_1_14 [L118] last_1_var_1_17 = var_1_17 [L119] last_1_var_1_18 = var_1_18 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L129] RET updateLastVariables() [L130] CALL updateVariables() [L91] var_1_2 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L92] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L93] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L93] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=15/2, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L94] var_1_3 = __VERIFIER_nondet_double() [L95] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L95] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=1281/5, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L96] var_1_4 = __VERIFIER_nondet_double() [L97] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L97] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=11/4, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L98] var_1_5 = __VERIFIER_nondet_double() [L99] CALL assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L99] RET assume_abort_if_not((var_1_5 >= -922337.2036854765600e+13F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=161/20, var_1_8=21/4] [L100] var_1_7 = __VERIFIER_nondet_double() [L101] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L101] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L102] CALL assume_abort_if_not(var_1_7 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L102] RET assume_abort_if_not(var_1_7 != 0.0F) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=5, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L103] var_1_16 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L104] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L105] CALL assume_abort_if_not(var_1_16 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L105] RET assume_abort_if_not(var_1_16 <= 65534) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=1, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L106] var_1_19 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_19 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L107] RET assume_abort_if_not(var_1_19 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L108] CALL assume_abort_if_not(var_1_19 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L108] RET assume_abort_if_not(var_1_19 <= 64) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=8, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L109] var_1_20 = __VERIFIER_nondet_uchar() [L110] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L110] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L111] CALL assume_abort_if_not(var_1_20 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L111] RET assume_abort_if_not(var_1_20 <= 63) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=4, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L130] RET updateVariables() [L131] CALL step() [L46] COND FALSE !(\read(var_1_2)) [L55] var_1_17 = last_1_var_1_18 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=513/2, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L57] COND TRUE ! var_1_2 [L58] var_1_1 = ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L62] COND FALSE !(var_1_5 > (var_1_3 / var_1_7)) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L67] unsigned short int stepLocal_1 = var_1_16; VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_1=65534, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L68] EXPR var_1_6 | var_1_6 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_1=65534, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6 | var_1_6=-64, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L68] COND FALSE !((var_1_6 + (var_1_6 | var_1_6)) > stepLocal_1) [L71] COND FALSE !(var_1_5 >= var_1_1) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_1=65534, var_1_11=4, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L78] COND TRUE var_1_4 <= last_1_var_1_1 [L79] var_1_11 = (last_1_var_1_14 + -128) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_1=65534, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L83] signed long int stepLocal_0 = var_1_11; VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_0=9872, stepLocal_1=65534, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L84] COND TRUE (var_1_14 * var_1_17) >= stepLocal_0 VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_0=9872, stepLocal_1=65534, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L85] COND FALSE !(\read(var_1_2)) VAL [isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, stepLocal_0=9872, stepLocal_1=65534, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L131] RET step() [L132] CALL, EXPR property() [L122] EXPR (((((((! var_1_2) ? (var_1_1 == ((double) ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))))) : (var_1_1 == ((double) var_1_4))) && ((var_1_5 > (var_1_3 / var_1_7)) ? ((! var_1_2) ? (var_1_6 == ((signed long int) -10)) : 1) : 1)) && (((var_1_14 * var_1_17) >= var_1_11) ? (var_1_2 ? (var_1_8 == ((float) var_1_4)) : 1) : 1)) && ((var_1_4 <= last_1_var_1_1) ? (var_1_11 == ((signed long int) (last_1_var_1_14 + -128))) : (var_1_11 == ((signed long int) (((((-256) < (last_1_var_1_14)) ? (-256) : (last_1_var_1_14))) + ((((last_1_var_1_17) < (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))) ? (last_1_var_1_17) : (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))))))))) && ((var_1_5 >= var_1_1) ? ((((((1.2) < 0 ) ? -(1.2) : (1.2))) < var_1_4) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (var_1_2 ? ((last_1_var_1_8 == var_1_5) ? (((128 * ((((last_1_var_1_18) < (last_1_var_1_11)) ? (last_1_var_1_18) : (last_1_var_1_11)))) > 1) ? (var_1_17 == ((unsigned short int) last_1_var_1_18)) : 1) : (var_1_17 == ((unsigned short int) last_1_var_1_18))) : (var_1_17 == ((unsigned short int) last_1_var_1_18)))) && (((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) ? (var_1_18 == ((unsigned char) (128 - (var_1_19 + var_1_20)))) : 1) VAL [(((((((! var_1_2) ? (var_1_1 == ((double) ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))))) : (var_1_1 == ((double) var_1_4))) && ((var_1_5 > (var_1_3 / var_1_7)) ? ((! var_1_2) ? (var_1_6 == ((signed long int) -10)) : 1) : 1)) && (((var_1_14 * var_1_17) >= var_1_11) ? (var_1_2 ? (var_1_8 == ((float) var_1_4)) : 1) : 1)) && ((var_1_4 <= last_1_var_1_1) ? (var_1_11 == ((signed long int) (last_1_var_1_14 + -128))) : (var_1_11 == ((signed long int) (((((-256) < (last_1_var_1_14)) ? (-256) : (last_1_var_1_14))) + ((((last_1_var_1_17) < (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))) ? (last_1_var_1_17) : (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))))))))) && ((var_1_5 >= var_1_1) ? ((((((1.2) < 0 ) ? -(1.2) : (1.2))) < var_1_4) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (var_1_2 ? ((last_1_var_1_8 == var_1_5) ? (((128 * ((((last_1_var_1_18) < (last_1_var_1_11)) ? (last_1_var_1_18) : (last_1_var_1_11)))) > 1) ? (var_1_17 == ((unsigned short int) last_1_var_1_18)) : 1) : (var_1_17 == ((unsigned short int) last_1_var_1_18))) : (var_1_17 == ((unsigned short int) last_1_var_1_18)))) && (((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) ? (var_1_18 == ((unsigned char) (128 - (var_1_19 + var_1_20)))) : 1)=0, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L122-L123] return (((((((! var_1_2) ? (var_1_1 == ((double) ((((((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) < (var_1_5)) ? (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4)))) : (var_1_5))))) : (var_1_1 == ((double) var_1_4))) && ((var_1_5 > (var_1_3 / var_1_7)) ? ((! var_1_2) ? (var_1_6 == ((signed long int) -10)) : 1) : 1)) && (((var_1_14 * var_1_17) >= var_1_11) ? (var_1_2 ? (var_1_8 == ((float) var_1_4)) : 1) : 1)) && ((var_1_4 <= last_1_var_1_1) ? (var_1_11 == ((signed long int) (last_1_var_1_14 + -128))) : (var_1_11 == ((signed long int) (((((-256) < (last_1_var_1_14)) ? (-256) : (last_1_var_1_14))) + ((((last_1_var_1_17) < (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))) ? (last_1_var_1_17) : (((((last_1_var_1_17) > (256)) ? (last_1_var_1_17) : (256))))))))))) && ((var_1_5 >= var_1_1) ? ((((((1.2) < 0 ) ? -(1.2) : (1.2))) < var_1_4) ? (var_1_14 == ((unsigned short int) var_1_18)) : (var_1_14 == ((unsigned short int) var_1_18))) : 1)) && (var_1_2 ? ((last_1_var_1_8 == var_1_5) ? (((128 * ((((last_1_var_1_18) < (last_1_var_1_11)) ? (last_1_var_1_18) : (last_1_var_1_11)))) > 1) ? (var_1_17 == ((unsigned short int) last_1_var_1_18)) : 1) : (var_1_17 == ((unsigned short int) last_1_var_1_18))) : (var_1_17 == ((unsigned short int) last_1_var_1_18)))) && (((var_1_6 + (var_1_6 | var_1_6)) > var_1_16) ? (var_1_18 == ((unsigned char) (128 - (var_1_19 + var_1_20)))) : 1) ; [L132] RET, EXPR property() [L132] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=4, last_1_var_1_14=10000, last_1_var_1_17=4, last_1_var_1_18=100, last_1_var_1_1=513/2, last_1_var_1_8=21/4, var_1_11=9872, var_1_14=10000, var_1_16=65534, var_1_17=100, var_1_18=100, var_1_19=64, var_1_1=5, var_1_20=0, var_1_2=0, var_1_3=5, var_1_4=2, var_1_5=3, var_1_6=-64, var_1_7=4, var_1_8=21/4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 6, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 657 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 657 mSDsluCounter, 1868 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1205 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 542 IncrementalHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 663 mSDtfsCounter, 542 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred in iteration=5, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 847 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 466 ConstructedInterpolants, 0 QuantifiedInterpolants, 1794 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1252 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 1560/1560 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 [2023-11-06 21:59:12,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 883c6f5172a96f0287ac7e513094d32a0853666f3578c9a6dcc19d38a0beb57e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:15,792 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:15,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 21:59:15,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:15,929 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:15,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:15,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:15,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:15,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:15,996 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:15,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:15,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:15,999 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:16,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:16,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:16,003 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:59:16,004 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:59:16,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:16,005 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:16,006 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:16,007 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:16,007 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:59:16,008 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:59:16,008 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:59:16,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:59:16,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:16,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:16,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:16,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:16,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:16,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:16,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:16,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:16,015 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:16,015 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 21:59:16,016 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:59:16,016 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:16,016 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:16,017 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:16,018 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:16,018 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 21:59:16,019 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:16,019 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 883c6f5172a96f0287ac7e513094d32a0853666f3578c9a6dcc19d38a0beb57e [2023-11-06 21:59:16,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:16,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:16,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:16,535 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:16,535 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:16,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:19,797 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:20,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:20,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:20,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/f4d8fef6b/3b8d8e73e2994365a4a2f4fad9478abb/FLAGbeb19ffe4 [2023-11-06 21:59:20,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/data/f4d8fef6b/3b8d8e73e2994365a4a2f4fad9478abb [2023-11-06 21:59:20,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:20,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:20,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:20,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:20,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:20,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c76778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20, skipping insertion in model container [2023-11-06 21:59:20,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:20,461 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i[913,926] [2023-11-06 21:59:20,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:20,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:20,638 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_26e9962f-6d20-4c89-bf35-79138b4ac3bd/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-76.i[913,926] [2023-11-06 21:59:20,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:20,730 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:20,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20 WrapperNode [2023-11-06 21:59:20,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:20,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:20,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:20,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:20,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,828 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 124 [2023-11-06 21:59:20,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:20,831 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:20,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:20,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:20,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:20,923 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:20,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:20,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:20,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:20,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:20,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:20,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:21,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:59:21,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:59:21,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:59:21,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:59:21,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:21,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:21,193 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:21,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:28,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:59:28,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:59:28,067 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 21:59:28,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:28 BoogieIcfgContainer [2023-11-06 21:59:28,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:59:28,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:59:28,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:59:28,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:59:28,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:20" (1/3) ... [2023-11-06 21:59:28,079 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc187e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:28, skipping insertion in model container [2023-11-06 21:59:28,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (2/3) ... [2023-11-06 21:59:28,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc187e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:28, skipping insertion in model container [2023-11-06 21:59:28,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:28" (3/3) ... [2023-11-06 21:59:28,082 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-76.i [2023-11-06 21:59:28,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:59:28,106 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 21:59:28,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:59:28,169 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=LoopsAndPotentialCycles, 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;@5fb1d441, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:59:28,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 21:59:28,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 21:59:28,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-06 21:59:28,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:28,189 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:28,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:28,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:28,201 INFO L85 PathProgramCache]: Analyzing trace with hash -812048894, now seen corresponding path program 1 times [2023-11-06 21:59:28,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:59:28,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274348360] [2023-11-06 21:59:28,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:28,221 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 [2023-11-06 21:59:28,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:59:28,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 21:59:28,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:29,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 21:59:29,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:29,571 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-06 21:59:29,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:29,573 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:59:29,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274348360] [2023-11-06 21:59:29,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274348360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:29,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:29,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:29,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178332749] [2023-11-06 21:59:29,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:29,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:59:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:59:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:59:29,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:59:29,619 INFO L87 Difference]: Start difference. First operand has 54 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 39 states have internal predecessors, (55), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 21:59:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:29,652 INFO L93 Difference]: Finished difference Result 101 states and 169 transitions. [2023-11-06 21:59:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:59:29,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2023-11-06 21:59:29,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:29,670 INFO L225 Difference]: With dead ends: 101 [2023-11-06 21:59:29,671 INFO L226 Difference]: Without dead ends: 50 [2023-11-06 21:59:29,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:59:29,681 INFO L413 NwaCegarLoop]: 74 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, 74 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 [2023-11-06 21:59:29,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:59:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-06 21:59:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-11-06 21:59:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 35 states have internal predecessors, (48), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 21:59:29,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 74 transitions. [2023-11-06 21:59:29,746 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 74 transitions. Word has length 91 [2023-11-06 21:59:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:29,747 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 74 transitions. [2023-11-06 21:59:29,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-06 21:59:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2023-11-06 21:59:29,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-06 21:59:29,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:29,753 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:29,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 21:59:29,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:29,969 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:29,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:29,970 INFO L85 PathProgramCache]: Analyzing trace with hash 32970184, now seen corresponding path program 1 times [2023-11-06 21:59:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:59:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638421218] [2023-11-06 21:59:29,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:29,971 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 [2023-11-06 21:59:29,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:59:29,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 21:59:29,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:31,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:59:31,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:32,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:32,478 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:59:32,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638421218] [2023-11-06 21:59:32,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638421218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:32,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:32,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:32,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669123306] [2023-11-06 21:59:32,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:32,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:32,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:59:32,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:32,482 INFO L87 Difference]: Start difference. First operand 50 states and 74 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:35,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:37,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:37,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:59:37,451 INFO L93 Difference]: Finished difference Result 144 states and 216 transitions. [2023-11-06 21:59:37,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:37,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-11-06 21:59:37,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:59:37,684 INFO L225 Difference]: With dead ends: 144 [2023-11-06 21:59:37,685 INFO L226 Difference]: Without dead ends: 97 [2023-11-06 21:59:37,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:37,687 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 26 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 21:59:37,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 140 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2023-11-06 21:59:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-06 21:59:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-11-06 21:59:37,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 66 states have (on average 1.378787878787879) internal successors, (91), 66 states have internal predecessors, (91), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-06 21:59:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 143 transitions. [2023-11-06 21:59:37,721 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 143 transitions. Word has length 91 [2023-11-06 21:59:37,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:59:37,722 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 143 transitions. [2023-11-06 21:59:37,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 143 transitions. [2023-11-06 21:59:37,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-06 21:59:37,727 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:59:37,727 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:37,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:37,934 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 21:59:37,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:37,935 INFO L85 PathProgramCache]: Analyzing trace with hash 713028554, now seen corresponding path program 1 times [2023-11-06 21:59:37,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 21:59:37,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781381591] [2023-11-06 21:59:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:37,936 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 [2023-11-06 21:59:37,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 21:59:37,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 21:59:37,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 21:59:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:38,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:59:38,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:41,665 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 21:59:41,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:41,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 21:59:41,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781381591] [2023-11-06 21:59:41,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1781381591] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:41,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:41,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:59:41,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944779512] [2023-11-06 21:59:41,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:41,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:59:41,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 21:59:41,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:59:41,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:41,669 INFO L87 Difference]: Start difference. First operand 95 states and 143 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 21:59:46,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:48,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:50,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:52,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:55,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:57,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 21:59:59,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:01,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:03,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:05,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:07,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:10,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:12,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:14,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:16,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:18,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:20,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:20,837 INFO L93 Difference]: Finished difference Result 513 states and 784 transitions. [2023-11-06 22:00:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:00:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-11-06 22:00:20,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:20,844 INFO L225 Difference]: With dead ends: 513 [2023-11-06 22:00:20,844 INFO L226 Difference]: Without dead ends: 421 [2023-11-06 22:00:20,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:00:20,848 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 143 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 27 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:20,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 624 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 263 Invalid, 16 Unknown, 0 Unchecked, 38.7s Time] [2023-11-06 22:00:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-06 22:00:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 205. [2023-11-06 22:00:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 148 states have (on average 1.3986486486486487) internal successors, (207), 148 states have internal predecessors, (207), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:00:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 311 transitions. [2023-11-06 22:00:20,926 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 311 transitions. Word has length 91 [2023-11-06 22:00:20,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:20,927 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 311 transitions. [2023-11-06 22:00:20,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:00:20,927 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 311 transitions. [2023-11-06 22:00:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-06 22:00:20,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:20,932 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:20,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:21,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:00:21,146 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:00:21,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:21,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1061978808, now seen corresponding path program 1 times [2023-11-06 22:00:21,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:00:21,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877261081] [2023-11-06 22:00:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:21,148 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 [2023-11-06 22:00:21,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:00:21,149 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:00:21,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:00:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:22,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:00:22,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:00:25,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:00:25,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:00:25,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877261081] [2023-11-06 22:00:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [877261081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:00:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864397081] [2023-11-06 22:00:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:25,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:00:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:00:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:00:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:00:25,698 INFO L87 Difference]: Start difference. First operand 205 states and 311 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:00:30,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:32,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:34,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:36,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:38,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:40,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:42,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:44,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:46,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:48,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:51,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:53,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:55,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:57,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:00:59,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:01,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:03,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:06,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:08,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:10,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:12,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:14,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:16,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:18,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:20,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:22,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:29,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:31,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:33,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:35,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:37,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:39,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:41,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:43,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:45,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:01:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:45,701 INFO L93 Difference]: Finished difference Result 679 states and 1025 transitions. [2023-11-06 22:01:45,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:01:45,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2023-11-06 22:01:45,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:45,711 INFO L225 Difference]: With dead ends: 679 [2023-11-06 22:01:45,712 INFO L226 Difference]: Without dead ends: 587 [2023-11-06 22:01:45,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:01:45,715 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 352 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 113 mSolverCounterUnsat, 35 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 35 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:45,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 595 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 421 Invalid, 35 Unknown, 0 Unchecked, 79.1s Time] [2023-11-06 22:01:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2023-11-06 22:01:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 396. [2023-11-06 22:01:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 283 states have (on average 1.4028268551236749) internal successors, (397), 283 states have internal predecessors, (397), 104 states have call successors, (104), 8 states have call predecessors, (104), 8 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2023-11-06 22:01:45,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 605 transitions. [2023-11-06 22:01:45,849 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 605 transitions. Word has length 91 [2023-11-06 22:01:45,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:45,851 INFO L495 AbstractCegarLoop]: Abstraction has 396 states and 605 transitions. [2023-11-06 22:01:45,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:01:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 605 transitions. [2023-11-06 22:01:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:01:45,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:45,862 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:45,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:46,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:01:46,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:01:46,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1879099464, now seen corresponding path program 1 times [2023-11-06 22:01:46,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:46,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545262337] [2023-11-06 22:01:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:46,067 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 [2023-11-06 22:01:46,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:46,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:01:46,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:01:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:47,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:01:47,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:01:48,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:48,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:48,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545262337] [2023-11-06 22:01:48,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545262337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:48,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:48,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:01:48,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826234413] [2023-11-06 22:01:48,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:48,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:01:48,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:48,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:01:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:01:48,569 INFO L87 Difference]: Start difference. First operand 396 states and 605 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:01:53,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.80s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:01:55,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:01:57,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:01:59,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:03,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:05,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:08,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:10,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:12,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:14,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:16,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:21,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:23,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:25,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:27,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:29,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:29,932 INFO L93 Difference]: Finished difference Result 1119 states and 1712 transitions. [2023-11-06 22:02:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:02:29,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2023-11-06 22:02:29,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:29,941 INFO L225 Difference]: With dead ends: 1119 [2023-11-06 22:02:29,941 INFO L226 Difference]: Without dead ends: 1027 [2023-11-06 22:02:29,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:02:29,943 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 155 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 59 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:29,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 756 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 245 Invalid, 17 Unknown, 0 Unchecked, 40.8s Time] [2023-11-06 22:02:29,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2023-11-06 22:02:30,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 455. [2023-11-06 22:02:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 328 states have (on average 1.4085365853658536) internal successors, (462), 328 states have internal predecessors, (462), 117 states have call successors, (117), 9 states have call predecessors, (117), 9 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-11-06 22:02:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 696 transitions. [2023-11-06 22:02:30,074 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 696 transitions. Word has length 92 [2023-11-06 22:02:30,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:30,075 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 696 transitions. [2023-11-06 22:02:30,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:02:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 696 transitions. [2023-11-06 22:02:30,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:02:30,080 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:30,081 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:30,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-06 22:02:30,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:02:30,306 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:02:30,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:30,306 INFO L85 PathProgramCache]: Analyzing trace with hash 640860470, now seen corresponding path program 1 times [2023-11-06 22:02:30,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:30,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459471240] [2023-11-06 22:02:30,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:30,307 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 [2023-11-06 22:02:30,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:30,309 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:02:30,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26e9962f-6d20-4c89-bf35-79138b4ac3bd/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:02:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:31,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:02:31,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-11-06 22:02:34,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:34,959 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:34,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459471240] [2023-11-06 22:02:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1459471240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:34,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:34,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:02:34,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363142626] [2023-11-06 22:02:34,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:34,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:02:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:02:34,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:02:34,962 INFO L87 Difference]: Start difference. First operand 455 states and 696 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-06 22:02:39,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:41,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:43,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:46,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:49,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:51,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:53,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:55,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:57,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:59,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:01,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:03,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:05,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:07,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:09,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:11,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:13,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:16,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:18,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:20,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:22,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []