./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.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_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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_b2c63cca-5325-4153-8701-1056e2432c54/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 e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:53:39,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:53:39,225 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:53:39,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:53:39,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:53:39,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:53:39,277 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:53:39,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:53:39,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:53:39,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:53:39,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:53:39,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:53:39,281 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:53:39,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:53:39,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:53:39,283 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:53:39,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:53:39,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:53:39,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:53:39,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:53:39,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:53:39,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:53:39,287 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:53:39,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:53:39,288 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:53:39,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:53:39,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:53:39,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:53:39,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:39,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:53:39,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:53:39,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:53:39,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:53:39,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:53:39,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:53:39,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:53:39,294 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:53:39,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:53:39,295 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:53:39,295 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_b2c63cca-5325-4153-8701-1056e2432c54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 [2023-11-06 22:53:39,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:53:39,639 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:53:39,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:53:39,644 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:53:39,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:53:39,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:53:42,897 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:53:43,124 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:53:43,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:53:43,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/9bc16753f/e15e9d37944148d7b97cdbacc4299c68/FLAG929d02976 [2023-11-06 22:53:43,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/9bc16753f/e15e9d37944148d7b97cdbacc4299c68 [2023-11-06 22:53:43,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:53:43,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:53:43,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:43,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:53:43,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:53:43,180 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289f5524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43, skipping insertion in model container [2023-11-06 22:53:43,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,213 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:53:43,363 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_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-06 22:53:43,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:43,419 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:53:43,439 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_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-06 22:53:43,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:43,491 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:53:43,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43 WrapperNode [2023-11-06 22:53:43,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:43,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:43,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:53:43,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:53:43,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,544 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2023-11-06 22:53:43,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:43,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:53:43,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:53:43,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:53:43,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:53:43,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:53:43,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:53:43,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:53:43,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (1/1) ... [2023-11-06 22:53:43,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:43,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:43,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:43,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:53:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:53:43,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:53:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:53:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:53:43,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:53:43,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:53:43,768 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:53:43,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:53:44,135 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:53:44,142 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:53:44,142 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:53:44,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:44 BoogieIcfgContainer [2023-11-06 22:53:44,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:53:44,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:53:44,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:53:44,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:53:44,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:43" (1/3) ... [2023-11-06 22:53:44,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a032183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:44, skipping insertion in model container [2023-11-06 22:53:44,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:43" (2/3) ... [2023-11-06 22:53:44,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a032183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:53:44, skipping insertion in model container [2023-11-06 22:53:44,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:44" (3/3) ... [2023-11-06 22:53:44,155 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:53:44,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:53:44,177 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:53:44,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:53:44,299 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;@8f4ae9d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:53:44,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:53:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:53:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:53:44,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:44,343 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:44,344 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:44,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:44,349 INFO L85 PathProgramCache]: Analyzing trace with hash 457138308, now seen corresponding path program 1 times [2023-11-06 22:53:44,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:44,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762999635] [2023-11-06 22:53:44,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:44,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:44,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:53:44,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:44,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762999635] [2023-11-06 22:53:44,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762999635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:44,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:44,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:53:44,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574972717] [2023-11-06 22:53:44,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:44,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:53:44,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:44,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:53:44,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:53:44,788 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:53:44,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:44,846 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2023-11-06 22:53:44,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:53:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2023-11-06 22:53:44,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:44,863 INFO L225 Difference]: With dead ends: 89 [2023-11-06 22:53:44,863 INFO L226 Difference]: Without dead ends: 44 [2023-11-06 22:53:44,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 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 22:53:44,877 INFO L413 NwaCegarLoop]: 63 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, 63 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 22:53:44,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:53:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-06 22:53:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-06 22:53:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:53:44,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2023-11-06 22:53:44,960 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 92 [2023-11-06 22:53:44,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:44,961 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2023-11-06 22:53:44,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:53:44,962 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2023-11-06 22:53:44,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:53:44,976 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:44,976 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:44,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:53:44,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:44,980 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:44,980 INFO L85 PathProgramCache]: Analyzing trace with hash 279699268, now seen corresponding path program 1 times [2023-11-06 22:53:44,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:44,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207823494] [2023-11-06 22:53:44,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:44,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:45,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:53:45,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:45,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207823494] [2023-11-06 22:53:45,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207823494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:45,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:45,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:53:45,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252344882] [2023-11-06 22:53:45,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:45,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:53:45,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:45,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:53:45,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:53:45,749 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:53:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:45,847 INFO L93 Difference]: Finished difference Result 126 states and 183 transitions. [2023-11-06 22:53:45,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:53:45,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:53:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:45,853 INFO L225 Difference]: With dead ends: 126 [2023-11-06 22:53:45,853 INFO L226 Difference]: Without dead ends: 85 [2023-11-06 22:53:45,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:53:45,857 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 30 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:45,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 170 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:53:45,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-06 22:53:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-11-06 22:53:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:53:45,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2023-11-06 22:53:45,896 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 92 [2023-11-06 22:53:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:45,898 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2023-11-06 22:53:45,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:53:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2023-11-06 22:53:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:53:45,901 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:45,901 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:45,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:53:45,902 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:45,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 281546310, now seen corresponding path program 1 times [2023-11-06 22:53:45,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:45,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847735774] [2023-11-06 22:53:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:45,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:53:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:53:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:53:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:53:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:53:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:53:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:53:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:53:47,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:53:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-06 22:53:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-06 22:53:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:53:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:53:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:53:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:53:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:53:47,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:53:47,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847735774] [2023-11-06 22:53:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847735774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:53:47,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:53:47,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-06 22:53:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828336932] [2023-11-06 22:53:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:53:47,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:53:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:53:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:53:47,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:53:47,988 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:53:49,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:53:49,143 INFO L93 Difference]: Finished difference Result 182 states and 255 transitions. [2023-11-06 22:53:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-06 22:53:49,145 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:53:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:53:49,149 INFO L225 Difference]: With dead ends: 182 [2023-11-06 22:53:49,149 INFO L226 Difference]: Without dead ends: 180 [2023-11-06 22:53:49,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:53:49,151 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 169 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:53:49,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 462 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:53:49,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-06 22:53:49,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 129. [2023-11-06 22:53:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 82 states have (on average 1.170731707317073) internal successors, (96), 84 states have internal predecessors, (96), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:53:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 180 transitions. [2023-11-06 22:53:49,218 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 180 transitions. Word has length 92 [2023-11-06 22:53:49,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:53:49,220 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 180 transitions. [2023-11-06 22:53:49,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:53:49,221 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 180 transitions. [2023-11-06 22:53:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:53:49,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:53:49,228 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:53:49,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:53:49,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:53:49,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:53:49,229 INFO L85 PathProgramCache]: Analyzing trace with hash -111480700, now seen corresponding path program 1 times [2023-11-06 22:53:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:53:49,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150333414] [2023-11-06 22:53:49,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:53:49,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:53:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:49,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:53:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:53:49,405 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:53:49,405 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:53:49,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:53:49,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:53:49,412 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 22:53:49,416 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:53:49,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:53:49 BoogieIcfgContainer [2023-11-06 22:53:49,503 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:53:49,504 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:53:49,504 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:53:49,504 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:53:49,505 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:53:44" (3/4) ... [2023-11-06 22:53:49,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:53:49,508 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:53:49,509 INFO L158 Benchmark]: Toolchain (without parser) took 6337.70ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 102.6MB in the beginning and 99.9MB in the end (delta: 2.7MB). Peak memory consumption was 80.8MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,509 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 118.4MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:53:49,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.50ms. Allocated memory is still 148.9MB. Free memory was 102.2MB in the beginning and 90.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.80ms. Allocated memory is still 148.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,511 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,512 INFO L158 Benchmark]: RCFGBuilder took 565.61ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 72.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,512 INFO L158 Benchmark]: TraceAbstraction took 5355.86ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 71.9MB in the beginning and 99.9MB in the end (delta: -28.0MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2023-11-06 22:53:49,513 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 224.4MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:53:49,516 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 148.9MB. Free memory was 118.4MB in the beginning and 118.4MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.50ms. Allocated memory is still 148.9MB. Free memory was 102.2MB in the beginning and 90.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.80ms. Allocated memory is still 148.9MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 148.9MB. Free memory was 87.9MB in the beginning and 86.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.61ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 72.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5355.86ms. Allocated memory was 148.9MB in the beginning and 224.4MB in the end (delta: 75.5MB). Free memory was 71.9MB in the beginning and 99.9MB in the end (delta: -28.0MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 224.4MB. Free memory is still 99.9MB. 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 to_int at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 90. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = -200; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 1; [L25] signed long int var_1_9 = 100; [L26] signed long int var_1_10 = 4; [L27] signed long int var_1_11 = 128; [L28] signed long int var_1_12 = 128; [L29] signed long int var_1_13 = 0; [L30] signed long int var_1_14 = 127; [L31] unsigned char var_1_15 = 1; [L32] unsigned char var_1_16 = 16; VAL [isInitial=0, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=0, var_1_3=1, var_1_9=100] [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L65] var_1_2 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=100] [L66] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_3=1, var_1_9=100] [L67] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=100] [L67] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=1, var_1_9=100] [L68] var_1_3 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L69] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L70] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L70] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=4, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L71] var_1_10 = __VERIFIER_nondet_long() [L72] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L72] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L73] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L73] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, var_1_10=3, var_1_11=128, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L74] var_1_11 = __VERIFIER_nondet_long() [L75] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L75] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L76] CALL assume_abort_if_not(var_1_11 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L76] RET assume_abort_if_not(var_1_11 <= 2147483647) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=0, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L77] var_1_13 = __VERIFIER_nondet_long() [L78] CALL assume_abort_if_not(var_1_13 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L78] RET assume_abort_if_not(var_1_13 >= 2147483647) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L79] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L79] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=127, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L80] var_1_14 = __VERIFIER_nondet_long() [L81] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L81] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L82] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L82] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=16, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L83] var_1_16 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L84] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L85] CALL assume_abort_if_not(var_1_16 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L85] RET assume_abort_if_not(var_1_16 <= 254) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L98] RET updateVariables() [L99] CALL step() [L36] COND FALSE !(0.8f > (- var_1_10)) VAL [isInitial=1, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L39] unsigned char stepLocal_1 = var_1_15 > var_1_15; [L40] unsigned char stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L41] COND FALSE !(var_1_2 && stepLocal_0) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=100] [L48] COND TRUE \read(var_1_2) [L49] var_1_9 = (var_1_10 - var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] [L57] signed long int stepLocal_2 = var_1_1; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-200, var_1_10=3, var_1_11=4, var_1_12=128, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] [L58] COND FALSE !(stepLocal_2 <= ((((8u) < 0 ) ? -(8u) : (8u)))) [L61] var_1_12 = ((var_1_13 - var_1_14) - var_1_11) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=-200, var_1_10=3, var_1_11=4, var_1_12=-4, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] [L99] RET step() [L100] CALL, EXPR property() [L90-L91] return ((((var_1_2 && var_1_3) ? ((var_1_2 && (var_1_15 > var_1_15)) ? (var_1_1 == ((signed long int) (var_1_15 - var_1_15))) : (var_1_1 == ((signed long int) ((var_1_15 + 5) - var_1_15)))) : 1) && (var_1_2 ? (var_1_9 == ((signed long int) (var_1_10 - var_1_11))) : ((var_1_1 < var_1_15) ? (var_1_9 == ((signed long int) ((((var_1_11) > (var_1_10)) ? (var_1_11) : (var_1_10))))) : (var_1_9 == ((signed long int) var_1_10))))) && ((var_1_1 <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (var_1_12 == ((signed long int) (var_1_10 - 99.5))) : (var_1_12 == ((signed long int) ((var_1_13 - var_1_14) - var_1_11))))) && ((0.8f > (- var_1_10)) ? (var_1_15 == ((unsigned char) var_1_16)) : 1) ; VAL [\result=0, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=-4, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=-4, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=3, var_1_11=4, var_1_12=-4, var_1_13=2147483647, var_1_14=2147483647, var_1_15=1, var_1_16=254, var_1_1=-200, var_1_2=1, var_1_3=0, var_1_9=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 199 mSDsluCounter, 695 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 473 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 222 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 54 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 368 NumberOfCodeBlocks, 368 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 273 ConstructedInterpolants, 0 QuantifiedInterpolants, 897 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1092/1092 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 22:53:49,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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_b2c63cca-5325-4153-8701-1056e2432c54/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 e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:53:52,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:53:52,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:53:52,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:53:52,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:53:52,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:53:52,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:53:52,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:53:52,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:53:52,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:53:52,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:53:52,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:53:52,350 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:53:52,352 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:53:52,352 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:53:52,353 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:53:52,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:53:52,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:53:52,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:53:52,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:53:52,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:53:52,357 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:53:52,357 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:53:52,358 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:53:52,358 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:53:52,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:53:52,359 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:53:52,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:53:52,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:53:52,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:53:52,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:52,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:53:52,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:53:52,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:53:52,363 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:53:52,364 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:53:52,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:53:52,364 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:53:52,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:53:52,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:53:52,366 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:53:52,366 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:53:52,366 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_b2c63cca-5325-4153-8701-1056e2432c54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6bb6165a865ae599fbbbb878eea3788e6b54201c0af68fa4b08e901e99cc922 [2023-11-06 22:53:52,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:53:52,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:53:52,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:53:52,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:53:52,801 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:53:52,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:53:55,903 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:53:56,204 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:53:56,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:53:56,219 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/79053aaa3/5bbe12c478e24f1a9532744696f53ab3/FLAG1a3d4e52f [2023-11-06 22:53:56,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/data/79053aaa3/5bbe12c478e24f1a9532744696f53ab3 [2023-11-06 22:53:56,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:53:56,251 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:53:56,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:56,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:53:56,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:53:56,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f690e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56, skipping insertion in model container [2023-11-06 22:53:56,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,301 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:53:56,502 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_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-06 22:53:56,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:56,595 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:53:56,609 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_b2c63cca-5325-4153-8701-1056e2432c54/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-78.i[916,929] [2023-11-06 22:53:56,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:53:56,656 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:53:56,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56 WrapperNode [2023-11-06 22:53:56,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:53:56,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:56,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:53:56,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:53:56,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,734 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-11-06 22:53:56,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:53:56,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:53:56,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:53:56,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:53:56,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:53:56,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:53:56,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:53:56,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:53:56,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (1/1) ... [2023-11-06 22:53:56,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:53:56,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:53:56,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:53:56,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:53:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:53:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:53:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:53:56,871 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:53:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:53:56,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:53:56,950 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:53:56,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:00,060 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:00,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:00,067 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:54:00,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:00 BoogieIcfgContainer [2023-11-06 22:54:00,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:00,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:00,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:00,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:00,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:53:56" (1/3) ... [2023-11-06 22:54:00,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dfddb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:00, skipping insertion in model container [2023-11-06 22:54:00,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:53:56" (2/3) ... [2023-11-06 22:54:00,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dfddb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:00, skipping insertion in model container [2023-11-06 22:54:00,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:00" (3/3) ... [2023-11-06 22:54:00,079 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-78.i [2023-11-06 22:54:00,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:00,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:54:00,148 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:00,155 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;@53279f91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:00,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:54:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:54:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:54:00,172 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:00,173 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:00,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:00,179 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash 457138308, now seen corresponding path program 1 times [2023-11-06 22:54:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:54:00,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841849919] [2023-11-06 22:54:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:00,195 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 22:54:00,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:54:00,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:00,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:00,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:54:00,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:54:00,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:00,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:54:00,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1841849919] [2023-11-06 22:54:00,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1841849919] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:00,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:00,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:54:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765741676] [2023-11-06 22:54:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:00,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:54:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:54:00,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:54:00,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:54:00,702 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:54:00,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:00,747 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2023-11-06 22:54:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:54:00,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2023-11-06 22:54:00,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:00,759 INFO L225 Difference]: With dead ends: 89 [2023-11-06 22:54:00,759 INFO L226 Difference]: Without dead ends: 44 [2023-11-06 22:54:00,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 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 22:54:00,769 INFO L413 NwaCegarLoop]: 63 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, 63 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 22:54:00,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:54:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-06 22:54:00,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-06 22:54:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:54:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2023-11-06 22:54:00,822 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 92 [2023-11-06 22:54:00,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:00,822 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2023-11-06 22:54:00,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:54:00,843 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2023-11-06 22:54:00,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:54:00,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:00,851 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:00,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:54:01,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:01,066 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:01,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash 279699268, now seen corresponding path program 1 times [2023-11-06 22:54:01,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:54:01,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1822014247] [2023-11-06 22:54:01,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:01,069 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 22:54:01,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:54:01,070 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:01,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:01,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:54:01,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:54:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:54:01,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:54:01,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:54:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1822014247] [2023-11-06 22:54:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1822014247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:54:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:54:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:54:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172587084] [2023-11-06 22:54:01,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:54:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:54:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:54:01,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:54:01,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:54:01,895 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:54:03,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:54:04,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:54:06,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:54:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:54:06,890 INFO L93 Difference]: Finished difference Result 126 states and 183 transitions. [2023-11-06 22:54:06,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:54:06,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:54:06,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:54:06,929 INFO L225 Difference]: With dead ends: 126 [2023-11-06 22:54:06,929 INFO L226 Difference]: Without dead ends: 85 [2023-11-06 22:54:06,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:54:06,931 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:54:06,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 170 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-06 22:54:06,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-06 22:54:06,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82. [2023-11-06 22:54:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-06 22:54:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2023-11-06 22:54:06,965 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 92 [2023-11-06 22:54:06,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:54:06,966 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2023-11-06 22:54:06,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:54:06,967 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2023-11-06 22:54:06,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:54:06,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:06,968 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:54:06,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:07,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:07,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:07,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:07,174 INFO L85 PathProgramCache]: Analyzing trace with hash 281546310, now seen corresponding path program 1 times [2023-11-06 22:54:07,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:54:07,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962339099] [2023-11-06 22:54:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:07,176 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 22:54:07,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:54:07,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:07,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:54:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:54:07,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:54:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:54:07,606 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-06 22:54:07,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1458645724] [2023-11-06 22:54:07,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:07,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:54:07,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:54:07,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:54:07,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-06 22:54:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:54:07,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:54:07,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:55:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:55:14,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:55:14,782 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:55:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962339099] [2023-11-06 22:55:14,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:55:14,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1458645724] [2023-11-06 22:55:14,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1458645724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:55:14,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:55:14,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:55:14,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189939918] [2023-11-06 22:55:14,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:55:14,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:55:14,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:55:14,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:55:14,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:55:14,786 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:55:43,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:55:51,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:55:56,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:37,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:39,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:43,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:44,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:46,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:47,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:56:47,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:47,773 INFO L93 Difference]: Finished difference Result 170 states and 235 transitions. [2023-11-06 22:56:47,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-06 22:56:47,781 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:56:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:47,784 INFO L225 Difference]: With dead ends: 170 [2023-11-06 22:56:47,784 INFO L226 Difference]: Without dead ends: 168 [2023-11-06 22:56:47,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2023-11-06 22:56:47,786 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 124 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 23 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:47,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 361 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 324 Invalid, 3 Unknown, 0 Unchecked, 54.8s Time] [2023-11-06 22:56:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-11-06 22:56:47,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 117. [2023-11-06 22:56:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 78 states have (on average 1.1794871794871795) internal successors, (92), 80 states have internal predecessors, (92), 34 states have call successors, (34), 4 states have call predecessors, (34), 4 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:56:47,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 160 transitions. [2023-11-06 22:56:47,826 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 160 transitions. Word has length 92 [2023-11-06 22:56:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:47,827 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 160 transitions. [2023-11-06 22:56:47,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:56:47,828 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 160 transitions. [2023-11-06 22:56:47,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:56:47,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:47,830 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:56:47,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:48,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:56:48,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:56:48,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:56:48,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -111480700, now seen corresponding path program 1 times [2023-11-06 22:56:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:48,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717316496] [2023-11-06 22:56:48,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:48,237 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 22:56:48,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:48,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:56:48,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:56:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:48,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:48,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 165 proven. 27 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-06 22:56:49,694 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 12 proven. 27 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-06 22:57:07,492 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:07,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717316496] [2023-11-06 22:57:07,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717316496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:57:07,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:57:07,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-06 22:57:07,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675871317] [2023-11-06 22:57:07,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:57:07,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:57:07,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:57:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:57:07,496 INFO L87 Difference]: Start difference. First operand 117 states and 160 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:57:14,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:57:16,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:57:16,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:16,133 INFO L93 Difference]: Finished difference Result 237 states and 318 transitions. [2023-11-06 22:57:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:57:16,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 92 [2023-11-06 22:57:16,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:16,156 INFO L225 Difference]: With dead ends: 237 [2023-11-06 22:57:16,156 INFO L226 Difference]: Without dead ends: 123 [2023-11-06 22:57:16,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:57:16,159 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 58 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:16,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 89 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-11-06 22:57:16,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-11-06 22:57:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 115. [2023-11-06 22:57:16,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 74 states have (on average 1.1216216216216217) internal successors, (83), 76 states have internal predecessors, (83), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 32 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-06 22:57:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2023-11-06 22:57:16,192 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 92 [2023-11-06 22:57:16,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:16,193 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2023-11-06 22:57:16,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-11-06 22:57:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2023-11-06 22:57:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-06 22:57:16,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:16,197 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:57:16,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:16,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:57:16,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:57:16,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash -71448278, now seen corresponding path program 1 times [2023-11-06 22:57:16,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:16,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956681215] [2023-11-06 22:57:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:16,413 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 22:57:16,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:16,414 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:57:16,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/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 22:57:16,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:57:16,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:57:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:57:16,733 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-06 22:57:16,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1266010252] [2023-11-06 22:57:16,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:57:16,735 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:57:16,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:57:16,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:57:16,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2c63cca-5325-4153-8701-1056e2432c54/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-06 22:57:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:57:17,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:57:17,044 INFO L285 TraceCheckSpWp]: Computing forward predicates...