./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:34,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:34,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:41:34,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:34,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:34,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:34,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:34,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:34,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:34,406 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:34,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:34,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:34,409 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:34,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:34,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:41:34,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:34,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:34,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:34,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:34,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:41:34,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:34,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:41:34,415 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:34,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:41:34,416 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:34,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:34,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:34,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:34,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:34,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:34,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:34,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:41:34,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:34,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:34,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:34,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:41:34,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:34,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:34,423 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:34,423 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2023-11-19 07:41:34,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:34,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:34,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:34,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:34,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:34,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-11-19 07:41:37,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:38,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:38,080 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-11-19 07:41:38,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/b717e45f4/eace2ca112424e9183773e09756085c9/FLAGfa4122cb6 [2023-11-19 07:41:38,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/b717e45f4/eace2ca112424e9183773e09756085c9 [2023-11-19 07:41:38,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:38,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:38,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:38,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:38,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:38,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9e3d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38, skipping insertion in model container [2023-11-19 07:41:38,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:38,293 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-11-19 07:41:38,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:38,354 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:38,367 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-11-19 07:41:38,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:38,411 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:38,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38 WrapperNode [2023-11-19 07:41:38,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:38,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:38,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:38,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:38,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,477 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2023-11-19 07:41:38,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:38,479 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:38,479 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:38,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:38,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,521 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:38,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:38,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:38,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:38,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (1/1) ... [2023-11-19 07:41:38,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:38,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:38,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:41:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:41:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:38,751 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:38,754 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:39,186 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:39,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:39,203 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:41:39,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:39 BoogieIcfgContainer [2023-11-19 07:41:39,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:39,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:39,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:39,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:39,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:38" (1/3) ... [2023-11-19 07:41:39,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e941bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:39, skipping insertion in model container [2023-11-19 07:41:39,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:38" (2/3) ... [2023-11-19 07:41:39,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e941bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:39, skipping insertion in model container [2023-11-19 07:41:39,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:39" (3/3) ... [2023-11-19 07:41:39,218 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-18.i [2023-11-19 07:41:39,237 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:39,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:41:39,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:39,296 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4abff6f5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:39,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:41:39,301 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:41:39,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:41:39,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:39,315 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:39,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:39,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1645565991, now seen corresponding path program 1 times [2023-11-19 07:41:39,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:39,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018659605] [2023-11-19 07:41:39,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:39,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:39,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018659605] [2023-11-19 07:41:39,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:41:39,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514410460] [2023-11-19 07:41:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:39,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:39,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:39,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:41:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:39,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:41:39,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-19 07:41:39,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:39,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514410460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:39,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:39,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:39,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712835827] [2023-11-19 07:41:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:39,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:39,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:39,784 INFO L87 Difference]: Start difference. First operand has 60 states, 45 states have (on average 1.488888888888889) internal successors, (67), 46 states have internal predecessors, (67), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:41:39,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:39,890 INFO L93 Difference]: Finished difference Result 113 states and 188 transitions. [2023-11-19 07:41:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:39,894 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 87 [2023-11-19 07:41:39,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:39,905 INFO L225 Difference]: With dead ends: 113 [2023-11-19 07:41:39,905 INFO L226 Difference]: Without dead ends: 56 [2023-11-19 07:41:39,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:39,912 INFO L413 NwaCegarLoop]: 84 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, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:39,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:41:39,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-19 07:41:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-19 07:41:39,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 42 states have internal predecessors, (60), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:41:39,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2023-11-19 07:41:39,960 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 84 transitions. Word has length 87 [2023-11-19 07:41:39,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:39,960 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 84 transitions. [2023-11-19 07:41:39,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:41:39,961 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2023-11-19 07:41:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-19 07:41:39,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:39,966 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:40,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:40,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:41:40,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:40,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:40,178 INFO L85 PathProgramCache]: Analyzing trace with hash -925160349, now seen corresponding path program 1 times [2023-11-19 07:41:40,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:40,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559889591] [2023-11-19 07:41:40,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:40,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:40,298 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:40,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946510581] [2023-11-19 07:41:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:40,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:40,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:40,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:40,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:41:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:40,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:41:40,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:40,622 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:41:40,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:41:40,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:40,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559889591] [2023-11-19 07:41:40,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:40,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946510581] [2023-11-19 07:41:40,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946510581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:40,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:40,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:40,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605838658] [2023-11-19 07:41:40,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:40,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:40,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:40,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:40,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:40,629 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:41:40,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:40,774 INFO L93 Difference]: Finished difference Result 162 states and 246 transitions. [2023-11-19 07:41:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 87 [2023-11-19 07:41:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:40,778 INFO L225 Difference]: With dead ends: 162 [2023-11-19 07:41:40,778 INFO L226 Difference]: Without dead ends: 109 [2023-11-19 07:41:40,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:40,781 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 35 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:40,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 131 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:41:40,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-19 07:41:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 106. [2023-11-19 07:41:40,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-19 07:41:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 158 transitions. [2023-11-19 07:41:40,812 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 158 transitions. Word has length 87 [2023-11-19 07:41:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:40,813 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 158 transitions. [2023-11-19 07:41:40,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:41:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 158 transitions. [2023-11-19 07:41:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-19 07:41:40,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:40,816 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:40,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:41,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:41,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:41,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:41,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1613166208, now seen corresponding path program 1 times [2023-11-19 07:41:41,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:41,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321001012] [2023-11-19 07:41:41,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:41,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:41,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:41,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942785611] [2023-11-19 07:41:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:41,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:41,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:41,105 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:41,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:41:41,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:41,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:41:41,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:41:41,894 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-19 07:41:42,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:42,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321001012] [2023-11-19 07:41:42,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:42,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942785611] [2023-11-19 07:41:42,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942785611] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:41:42,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:41:42,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-19 07:41:42,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258304977] [2023-11-19 07:41:42,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:41:42,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-19 07:41:42,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:42,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-19 07:41:42,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2023-11-19 07:41:42,316 INFO L87 Difference]: Start difference. First operand 106 states and 158 transitions. Second operand has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:41:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:41:43,423 INFO L93 Difference]: Finished difference Result 348 states and 504 transitions. [2023-11-19 07:41:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-19 07:41:43,426 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 88 [2023-11-19 07:41:43,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:41:43,433 INFO L225 Difference]: With dead ends: 348 [2023-11-19 07:41:43,433 INFO L226 Difference]: Without dead ends: 245 [2023-11-19 07:41:43,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=305, Invalid=885, Unknown=0, NotChecked=0, Total=1190 [2023-11-19 07:41:43,442 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 550 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:41:43,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 344 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:41:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-19 07:41:43,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 229. [2023-11-19 07:41:43,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 172 states have (on average 1.244186046511628) internal successors, (214), 172 states have internal predecessors, (214), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:41:43,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 310 transitions. [2023-11-19 07:41:43,526 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 310 transitions. Word has length 88 [2023-11-19 07:41:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:41:43,529 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 310 transitions. [2023-11-19 07:41:43,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 16 states have internal predecessors, (56), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:41:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 310 transitions. [2023-11-19 07:41:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:41:43,538 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:41:43,538 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:43,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:41:43,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:43,760 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:41:43,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash -474227688, now seen corresponding path program 1 times [2023-11-19 07:41:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:43,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359623464] [2023-11-19 07:41:43,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:43,814 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:41:43,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294347090] [2023-11-19 07:41:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:43,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:41:43,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:43,817 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:41:43,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:41:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:43,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 07:41:44,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:41:46,663 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 104 proven. 36 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-19 07:41:46,663 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:41:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:41:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359623464] [2023-11-19 07:41:50,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:41:50,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294347090] [2023-11-19 07:41:50,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294347090] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-19 07:41:50,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:41:50,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-11-19 07:41:50,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43950126] [2023-11-19 07:41:50,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:50,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:41:50,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:50,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:41:50,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:41:50,617 INFO L87 Difference]: Start difference. First operand 229 states and 310 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:41:53,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-19 07:41:55,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-19 07:41:57,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2023-11-19 07:42:00,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:00,076 INFO L93 Difference]: Finished difference Result 482 states and 650 transitions. [2023-11-19 07:42:00,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-19 07:42:00,077 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2023-11-19 07:42:00,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:00,081 INFO L225 Difference]: With dead ends: 482 [2023-11-19 07:42:00,081 INFO L226 Difference]: Without dead ends: 366 [2023-11-19 07:42:00,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2023-11-19 07:42:00,083 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 224 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 20 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:00,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 312 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 315 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2023-11-19 07:42:00,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-19 07:42:00,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 259. [2023-11-19 07:42:00,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 202 states have (on average 1.2772277227722773) internal successors, (258), 202 states have internal predecessors, (258), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:42:00,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 354 transitions. [2023-11-19 07:42:00,123 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 354 transitions. Word has length 89 [2023-11-19 07:42:00,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:00,123 INFO L495 AbstractCegarLoop]: Abstraction has 259 states and 354 transitions. [2023-11-19 07:42:00,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:00,124 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 354 transitions. [2023-11-19 07:42:00,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:42:00,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:00,126 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:00,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-19 07:42:00,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:00,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:00,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:00,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1313079335, now seen corresponding path program 1 times [2023-11-19 07:42:00,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:00,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295417947] [2023-11-19 07:42:00,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:00,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:00,402 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:00,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536635930] [2023-11-19 07:42:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:00,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:00,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:00,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:42:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:00,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:42:00,522 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:42:00,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:00,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295417947] [2023-11-19 07:42:00,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:00,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536635930] [2023-11-19 07:42:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536635930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:00,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:00,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013847698] [2023-11-19 07:42:00,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:00,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:00,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:00,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:00,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:00,563 INFO L87 Difference]: Start difference. First operand 259 states and 354 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:00,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:00,681 INFO L93 Difference]: Finished difference Result 496 states and 687 transitions. [2023-11-19 07:42:00,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:00,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 90 [2023-11-19 07:42:00,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:00,688 INFO L225 Difference]: With dead ends: 496 [2023-11-19 07:42:00,688 INFO L226 Difference]: Without dead ends: 350 [2023-11-19 07:42:00,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:00,690 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 66 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:00,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 122 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:42:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-19 07:42:00,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 228. [2023-11-19 07:42:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 171 states have (on average 1.2690058479532165) internal successors, (217), 171 states have internal predecessors, (217), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:42:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 313 transitions. [2023-11-19 07:42:00,739 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 313 transitions. Word has length 90 [2023-11-19 07:42:00,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:00,740 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 313 transitions. [2023-11-19 07:42:00,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:00,740 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 313 transitions. [2023-11-19 07:42:00,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-19 07:42:00,744 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:00,744 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:00,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:00,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:00,953 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:00,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:00,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2122218558, now seen corresponding path program 1 times [2023-11-19 07:42:00,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:00,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006624721] [2023-11-19 07:42:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:00,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:01,010 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:01,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301519533] [2023-11-19 07:42:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:01,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:01,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:01,014 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:01,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:42:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:01,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 07:42:01,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:42:02,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-19 07:42:07,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:07,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006624721] [2023-11-19 07:42:07,266 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:07,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301519533] [2023-11-19 07:42:07,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301519533] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:07,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:07,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 21 [2023-11-19 07:42:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885554483] [2023-11-19 07:42:07,268 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:07,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-19 07:42:07,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:07,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-19 07:42:07,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2023-11-19 07:42:07,270 INFO L87 Difference]: Start difference. First operand 228 states and 313 transitions. Second operand has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:42:15,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:15,847 INFO L93 Difference]: Finished difference Result 673 states and 892 transitions. [2023-11-19 07:42:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-19 07:42:15,851 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) Word has length 90 [2023-11-19 07:42:15,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:15,855 INFO L225 Difference]: With dead ends: 673 [2023-11-19 07:42:15,855 INFO L226 Difference]: Without dead ends: 448 [2023-11-19 07:42:15,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1018 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=842, Invalid=2818, Unknown=0, NotChecked=0, Total=3660 [2023-11-19 07:42:15,858 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 610 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:15,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 532 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-19 07:42:15,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-19 07:42:15,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 251. [2023-11-19 07:42:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 194 states have (on average 1.268041237113402) internal successors, (246), 194 states have internal predecessors, (246), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:42:15,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 342 transitions. [2023-11-19 07:42:15,928 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 342 transitions. Word has length 90 [2023-11-19 07:42:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:15,929 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 342 transitions. [2023-11-19 07:42:15,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 21 states have internal predecessors, (67), 4 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (24), 2 states have call predecessors, (24), 4 states have call successors, (24) [2023-11-19 07:42:15,929 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 342 transitions. [2023-11-19 07:42:15,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:42:15,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:15,931 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:15,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:16,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:16,149 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:16,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:16,150 INFO L85 PathProgramCache]: Analyzing trace with hash -384293741, now seen corresponding path program 1 times [2023-11-19 07:42:16,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:16,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150101998] [2023-11-19 07:42:16,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:16,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:16,172 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:16,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935527736] [2023-11-19 07:42:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:16,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:16,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:16,174 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:16,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:42:16,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:16,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:42:16,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:42:16,426 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:16,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:16,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150101998] [2023-11-19 07:42:16,426 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935527736] [2023-11-19 07:42:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935527736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:42:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019078287] [2023-11-19 07:42:16,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:16,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:42:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:16,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:42:16,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:42:16,430 INFO L87 Difference]: Start difference. First operand 251 states and 342 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:16,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:16,827 INFO L93 Difference]: Finished difference Result 529 states and 721 transitions. [2023-11-19 07:42:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:42:16,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 91 [2023-11-19 07:42:16,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:16,831 INFO L225 Difference]: With dead ends: 529 [2023-11-19 07:42:16,832 INFO L226 Difference]: Without dead ends: 409 [2023-11-19 07:42:16,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:42:16,833 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 91 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:16,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 591 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:42:16,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-19 07:42:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 293. [2023-11-19 07:42:16,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 236 states have (on average 1.2457627118644068) internal successors, (294), 236 states have internal predecessors, (294), 48 states have call successors, (48), 8 states have call predecessors, (48), 8 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-19 07:42:16,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 390 transitions. [2023-11-19 07:42:16,921 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 390 transitions. Word has length 91 [2023-11-19 07:42:16,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:16,921 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 390 transitions. [2023-11-19 07:42:16,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:16,922 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 390 transitions. [2023-11-19 07:42:16,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:42:16,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:16,924 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:16,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:17,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:17,142 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:17,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:17,142 INFO L85 PathProgramCache]: Analyzing trace with hash -151477199, now seen corresponding path program 1 times [2023-11-19 07:42:17,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:17,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109900058] [2023-11-19 07:42:17,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:17,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:17,164 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:17,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244239501] [2023-11-19 07:42:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:17,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:17,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:17,166 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:17,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:42:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:17,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:42:17,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:17,414 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 11 proven. 33 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-19 07:42:17,414 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:42:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-19 07:42:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109900058] [2023-11-19 07:42:17,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244239501] [2023-11-19 07:42:17,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244239501] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:42:17,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:42:17,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2023-11-19 07:42:17,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167292055] [2023-11-19 07:42:17,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:42:17,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:42:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:42:17,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:42:17,551 INFO L87 Difference]: Start difference. First operand 293 states and 390 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-19 07:42:18,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:18,044 INFO L93 Difference]: Finished difference Result 685 states and 910 transitions. [2023-11-19 07:42:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:42:18,045 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 91 [2023-11-19 07:42:18,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:18,048 INFO L225 Difference]: With dead ends: 685 [2023-11-19 07:42:18,048 INFO L226 Difference]: Without dead ends: 383 [2023-11-19 07:42:18,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-11-19 07:42:18,050 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 215 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:18,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 201 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:42:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-11-19 07:42:18,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 354. [2023-11-19 07:42:18,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 269 states have (on average 1.1524163568773234) internal successors, (310), 269 states have internal predecessors, (310), 72 states have call successors, (72), 12 states have call predecessors, (72), 12 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2023-11-19 07:42:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 454 transitions. [2023-11-19 07:42:18,139 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 454 transitions. Word has length 91 [2023-11-19 07:42:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:18,139 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 454 transitions. [2023-11-19 07:42:18,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-19 07:42:18,140 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 454 transitions. [2023-11-19 07:42:18,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:42:18,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:18,141 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:18,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-19 07:42:18,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 07:42:18,353 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:18,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 739412413, now seen corresponding path program 1 times [2023-11-19 07:42:18,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:18,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574712640] [2023-11-19 07:42:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:18,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:18,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [229414998] [2023-11-19 07:42:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:18,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:18,377 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:18,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:42:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:42:18,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:42:18,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:42:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:42:18,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:42:18,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:42:18,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574712640] [2023-11-19 07:42:18,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:42:18,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229414998] [2023-11-19 07:42:18,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229414998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:42:18,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:42:18,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:42:18,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038653644] [2023-11-19 07:42:18,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:42:18,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:42:18,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:42:18,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:42:18,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:18,517 INFO L87 Difference]: Start difference. First operand 354 states and 454 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:18,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:42:18,589 INFO L93 Difference]: Finished difference Result 624 states and 804 transitions. [2023-11-19 07:42:18,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:42:18,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2023-11-19 07:42:18,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:42:18,592 INFO L225 Difference]: With dead ends: 624 [2023-11-19 07:42:18,592 INFO L226 Difference]: Without dead ends: 273 [2023-11-19 07:42:18,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:42:18,594 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:42:18,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:42:18,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-11-19 07:42:18,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 179. [2023-11-19 07:42:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 136 states have (on average 1.1176470588235294) internal successors, (152), 136 states have internal predecessors, (152), 36 states have call successors, (36), 6 states have call predecessors, (36), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-19 07:42:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 224 transitions. [2023-11-19 07:42:18,654 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 224 transitions. Word has length 92 [2023-11-19 07:42:18,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:42:18,655 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 224 transitions. [2023-11-19 07:42:18,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:42:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 224 transitions. [2023-11-19 07:42:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 07:42:18,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:42:18,656 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:18,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:18,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:42:18,868 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:42:18,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:42:18,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2075775766, now seen corresponding path program 1 times [2023-11-19 07:42:18,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:42:18,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165225537] [2023-11-19 07:42:18,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:18,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:42:18,893 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:42:18,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286923737] [2023-11-19 07:42:18,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:42:18,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:42:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:42:18,895 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:42:18,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:42:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:18,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:42:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:42:19,101 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:42:19,101 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:42:19,102 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:42:19,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:42:19,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-19 07:42:19,330 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:42:19,334 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:42:19,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:42:19,389 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-19 07:42:19,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 07:42:19,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 07:42:19,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 07:42:19,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:42:19 BoogieIcfgContainer [2023-11-19 07:42:19,408 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:42:19,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:42:19,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:42:19,409 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:42:19,410 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:39" (3/4) ... [2023-11-19 07:42:19,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:42:19,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:42:19,414 INFO L158 Benchmark]: Toolchain (without parser) took 41305.99ms. Allocated memory was 151.0MB in the beginning and 308.3MB in the end (delta: 157.3MB). Free memory was 104.8MB in the beginning and 201.6MB in the end (delta: -96.8MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,415 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:19,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.10ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 92.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.26ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 88.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,416 INFO L158 Benchmark]: Boogie Preprocessor took 42.53ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 87.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,416 INFO L158 Benchmark]: RCFGBuilder took 685.09ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 106.4MB in the end (delta: -19.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,417 INFO L158 Benchmark]: TraceAbstraction took 40198.83ms. Allocated memory was 151.0MB in the beginning and 308.3MB in the end (delta: 157.3MB). Free memory was 105.9MB in the beginning and 202.6MB in the end (delta: -96.8MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,417 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 308.3MB. Free memory was 202.6MB in the beginning and 201.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:42:19,419 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.10ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 92.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.26ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 88.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.53ms. Allocated memory is still 151.0MB. Free memory was 88.9MB in the beginning and 87.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.09ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 106.4MB in the end (delta: -19.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 40198.83ms. Allocated memory was 151.0MB in the beginning and 308.3MB in the end (delta: 157.3MB). Free memory was 105.9MB in the beginning and 202.6MB in the end (delta: -96.8MB). Peak memory consumption was 60.0MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 308.3MB. Free memory was 202.6MB in the beginning and 201.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of bitwiseOr at line 89, overapproximation of bitwiseAnd at line 46. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_7 = 18477; [L24] signed short int var_1_8 = 5; [L25] float var_1_9 = 5.8; [L26] float var_1_10 = 0.5; [L27] unsigned char var_1_11 = 16; [L28] unsigned char var_1_12 = 50; [L29] unsigned char var_1_13 = 1; [L30] unsigned long int var_1_14 = 256; [L31] unsigned char var_1_15 = 0; [L32] unsigned char last_1_var_1_11 = 16; [L33] unsigned long int last_1_var_1_14 = 256; VAL [isInitial=0, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] CALL updateLastVariables() [L85] last_1_var_1_11 = var_1_11 [L86] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=18477, var_1_8=5, var_1_9=29/5] [L96] RET updateLastVariables() [L97] CALL updateVariables() [L64] var_1_7 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L65] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L66] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L66] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=5, var_1_9=29/5] [L67] var_1_8 = __VERIFIER_nondet_short() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L69] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L69] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=29/5] [L70] var_1_9 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L71] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=1/2, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L72] var_1_10 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L73] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=50, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L74] var_1_12 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L75] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L76] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L76] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=1, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L77] var_1_13 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L78] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L79] CALL assume_abort_if_not(var_1_13 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L79] RET assume_abort_if_not(var_1_13 <= 254) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L80] var_1_15 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L81] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L82] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L82] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L97] RET updateVariables() [L98] CALL step() [L37] signed short int stepLocal_3 = var_1_8; [L38] unsigned long int stepLocal_2 = last_1_var_1_14; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L39] COND FALSE !(last_1_var_1_14 > stepLocal_3) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L46] EXPR var_1_11 & var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=256, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L46] COND FALSE !((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) [L51] var_1_14 = var_1_7 VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L53] unsigned char stepLocal_1 = var_1_11; VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L54] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=397/4, var_1_7=16383, var_1_8=256, var_1_9=2] [L54] unsigned long int stepLocal_0 = var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))); [L55] COND FALSE !(stepLocal_0 != var_1_11) [L60] var_1_1 = 10.5f VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, stepLocal_0=16, stepLocal_1=16, stepLocal_2=256, stepLocal_3=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=2] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=2] [L89] EXPR ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) VAL [isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=2] [L89-L90] return ((((var_1_11 ^ ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14)))) != var_1_11) ? ((var_1_11 == (var_1_11 - (var_1_7 - var_1_11))) ? (var_1_1 == ((float) ((((var_1_9) < (var_1_10)) ? (var_1_9) : (var_1_10))))) : 1) : (var_1_1 == ((float) 10.5f))) && ((last_1_var_1_14 > var_1_8) ? ((((last_1_var_1_11 - var_1_8) + var_1_7) > last_1_var_1_14) ? (var_1_11 == ((unsigned char) ((((var_1_12) < (var_1_13)) ? (var_1_12) : (var_1_13))))) : (var_1_11 == ((unsigned char) var_1_12))) : 1)) && (((var_1_11 & var_1_7) > ((var_1_12 * last_1_var_1_14) * (var_1_11 + var_1_11))) ? ((var_1_15 && (var_1_9 > var_1_10)) ? (var_1_14 == ((unsigned long int) var_1_7)) : 1) : (var_1_14 == ((unsigned long int) var_1_7))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=16, last_1_var_1_14=256, var_1_10=3, var_1_11=16, var_1_12=0, var_1_13=0, var_1_14=16383, var_1_15=0, var_1_1=21/2, var_1_7=16383, var_1_8=256, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.1s, OverallIterations: 10, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1804 SdHoareTripleChecker+Valid, 11.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1791 mSDsluCounter, 2464 SdHoareTripleChecker+Invalid, 11.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1771 mSDsCounter, 213 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2402 IncrementalHoareTripleChecker+Invalid, 2618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 213 mSolverCounterUnsat, 693 mSDtfsCounter, 2402 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1244 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1581 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=8, InterpolantAutomatonStates: 127, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 684 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 14.6s InterpolantComputationTime, 984 NumberOfCodeBlocks, 984 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1150 ConstructedInterpolants, 4 QuantifiedInterpolants, 8667 SizeOfPredicates, 58 NumberOfNonLiveVariables, 2005 ConjunctsInSsa, 99 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 3198/3432 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:42:19,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:22,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:22,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:42:22,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:22,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:22,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:22,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:22,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:22,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:22,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:22,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:22,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:22,426 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:22,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:22,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:42:22,429 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:22,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:22,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:22,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:42:22,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:22,433 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:42:22,433 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:22,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:42:22,434 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:42:22,435 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:22,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:42:22,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:22,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:22,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:22,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:22,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:22,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:22,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:22,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:42:22,440 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:42:22,440 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:22,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:22,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:42:22,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:22,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:22,443 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:42:22,443 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:22,443 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20590a3b952f77870c005ea22da4ee2c3e5fa42d319fcea291376108e5b76f76 [2023-11-19 07:42:22,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:22,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:22,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:22,910 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:22,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:22,915 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-11-19 07:42:26,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:26,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:26,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i [2023-11-19 07:42:26,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/cbdcfcf0c/a9a5ae0ced1946f1b620d3b2bbe19aa4/FLAG3f14852f4 [2023-11-19 07:42:26,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a9c4854-9d74-4cd0-995e-d82507faaf20/bin/uautomizer-verify-uCwYo4JHxu/data/cbdcfcf0c/a9a5ae0ced1946f1b620d3b2bbe19aa4 [2023-11-19 07:42:26,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:26,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:26,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:26,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:26,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:26,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4e74e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26, skipping insertion in model container [2023-11-19 07:42:26,461 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:26,725 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-11-19 07:42:26,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:26,833 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:42:26,852 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_3a9c4854-9d74-4cd0-995e-d82507faaf20/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-18.i[917,930] [2023-11-19 07:42:26,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:26,893 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:42:26,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26 WrapperNode [2023-11-19 07:42:26,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:26,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:26,896 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:42:26,896 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:42:26,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,944 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-11-19 07:42:26,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:42:26,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:42:26,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:42:26,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:42:26,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26" (1/1) ... [2023-11-19 07:42:26,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:26" (1/1) ...