./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b98b3e6d4123b2c62885793f0f4aa562f07507641655645ebc5f61e61734f1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:14:55,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:14:55,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:14:55,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:14:55,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:14:55,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:14:55,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:14:55,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:14:55,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:14:55,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:14:55,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:14:55,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:14:55,336 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:14:55,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:14:55,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:14:55,337 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:14:55,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:14:55,338 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:14:55,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:14:55,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:14:55,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:14:55,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:14:55,341 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:14:55,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:14:55,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:14:55,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:14:55,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:14:55,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:14:55,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:14:55,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:14:55,345 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:14:55,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:14:55,345 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:14:55,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:14:55,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:14:55,346 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:14:55,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:14:55,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:14:55,347 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:14:55,348 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_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b98b3e6d4123b2c62885793f0f4aa562f07507641655645ebc5f61e61734f1f [2023-11-06 22:14:55,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:14:55,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:14:55,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:14:55,669 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:14:55,672 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:14:55,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2023-11-06 22:14:58,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:14:59,149 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:14:59,150 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i [2023-11-06 22:14:59,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/data/d6755163a/af774805e310458ab3bcb8840e48f242/FLAG619a30bfd [2023-11-06 22:14:59,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/data/d6755163a/af774805e310458ab3bcb8840e48f242 [2023-11-06 22:14:59,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:14:59,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:14:59,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:59,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:14:59,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:14:59,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d0c24a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59, skipping insertion in model container [2023-11-06 22:14:59,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,268 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:14:59,446 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_3b355ced-c001-411d-816e-2f78f269ea64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i[915,928] [2023-11-06 22:14:59,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:59,496 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:14:59,510 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-7.i[915,928] [2023-11-06 22:14:59,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:14:59,549 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:14:59,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59 WrapperNode [2023-11-06 22:14:59,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:14:59,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:59,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:14:59,552 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:14:59,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,610 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2023-11-06 22:14:59,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:14:59,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:14:59,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:14:59,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:14:59,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,632 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:14:59,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:14:59,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:14:59,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:14:59,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (1/1) ... [2023-11-06 22:14:59,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:14:59,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:14:59,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:14:59,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:14:59,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:14:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:14:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:14:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:14:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:14:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:14:59,852 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:14:59,856 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:15:00,334 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:15:00,341 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:15:00,341 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:15:00,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:00 BoogieIcfgContainer [2023-11-06 22:15:00,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:15:00,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:15:00,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:15:00,360 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:15:00,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:14:59" (1/3) ... [2023-11-06 22:15:00,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78632ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:15:00, skipping insertion in model container [2023-11-06 22:15:00,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:14:59" (2/3) ... [2023-11-06 22:15:00,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78632ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:15:00, skipping insertion in model container [2023-11-06 22:15:00,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:00" (3/3) ... [2023-11-06 22:15:00,366 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-7.i [2023-11-06 22:15:00,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:15:00,389 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:15:00,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:15:00,479 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c2a92a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:15:00,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:15:00,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:15:00,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:15:00,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:15:00,502 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:00,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:15:00,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:00,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1710571826, now seen corresponding path program 1 times [2023-11-06 22:15:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71806007] [2023-11-06 22:15:00,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:00,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:00,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71806007] [2023-11-06 22:15:00,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-06 22:15:00,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789596289] [2023-11-06 22:15:00,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:00,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:00,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:00,704 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:15:00,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:15:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:00,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:15:00,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-11-06 22:15:00,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:15:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789596289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:00,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:00,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:15:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024617200] [2023-11-06 22:15:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:00,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:15:00,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:01,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:15:01,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:15:01,010 INFO L87 Difference]: Start difference. First operand has 48 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:15:01,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:01,043 INFO L93 Difference]: Finished difference Result 89 states and 153 transitions. [2023-11-06 22:15:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:15:01,046 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-11-06 22:15:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:15:01,057 INFO L225 Difference]: With dead ends: 89 [2023-11-06 22:15:01,057 INFO L226 Difference]: Without dead ends: 44 [2023-11-06 22:15:01,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:15:01,068 INFO L413 NwaCegarLoop]: 64 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, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:15:01,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:15:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-06 22:15:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-06 22:15:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-06 22:15:01,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 64 transitions. [2023-11-06 22:15:01,136 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 64 transitions. Word has length 94 [2023-11-06 22:15:01,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:15:01,137 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 64 transitions. [2023-11-06 22:15:01,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:15:01,138 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 64 transitions. [2023-11-06 22:15:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:15:01,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:15:01,146 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:01,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:01,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:01,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:15:01,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:01,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1154549772, now seen corresponding path program 1 times [2023-11-06 22:15:01,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:01,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521873744] [2023-11-06 22:15:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:01,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:01,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:15:01,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610758897] [2023-11-06 22:15:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:01,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:01,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:01,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:15:01,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:15:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:01,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-06 22:15:01,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 186 proven. 54 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:15:09,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:15:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:15:14,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:14,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521873744] [2023-11-06 22:15:14,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:15:14,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610758897] [2023-11-06 22:15:14,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610758897] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:15:14,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:15:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-11-06 22:15:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005511057] [2023-11-06 22:15:14,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:14,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:15:14,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:14,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:15:14,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:15:14,104 INFO L87 Difference]: Start difference. First operand 44 states and 64 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:14,454 INFO L93 Difference]: Finished difference Result 99 states and 142 transitions. [2023-11-06 22:15:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:15:14,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 94 [2023-11-06 22:15:14,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:15:14,458 INFO L225 Difference]: With dead ends: 99 [2023-11-06 22:15:14,459 INFO L226 Difference]: Without dead ends: 97 [2023-11-06 22:15:14,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:15:14,461 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 76 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:15:14,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 417 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:15:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-06 22:15:14,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2023-11-06 22:15:14,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 37 states have internal predecessors, (43), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 22:15:14,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2023-11-06 22:15:14,481 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 94 [2023-11-06 22:15:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:15:14,482 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2023-11-06 22:15:14,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:14,483 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2023-11-06 22:15:14,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-06 22:15:14,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:15:14,485 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:14,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:14,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:14,691 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:15:14,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:14,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1836792722, now seen corresponding path program 1 times [2023-11-06 22:15:14,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:14,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610575003] [2023-11-06 22:15:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:14,727 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:15:14,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620828523] [2023-11-06 22:15:14,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:14,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:14,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:14,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:15:14,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:15:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:14,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:15:14,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:15:14,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:15:14,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:14,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610575003] [2023-11-06 22:15:14,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:15:14,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620828523] [2023-11-06 22:15:14,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620828523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:15:14,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:15:14,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:15:14,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029171396] [2023-11-06 22:15:14,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:14,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:15:14,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:15:14,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:15:14,861 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:14,896 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2023-11-06 22:15:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:15:14,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 95 [2023-11-06 22:15:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:15:14,901 INFO L225 Difference]: With dead ends: 130 [2023-11-06 22:15:14,901 INFO L226 Difference]: Without dead ends: 82 [2023-11-06 22:15:14,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:15:14,903 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 26 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:15:14,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:15:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-06 22:15:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2023-11-06 22:15:14,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 51 states have (on average 1.1372549019607843) internal successors, (58), 53 states have internal predecessors, (58), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 23 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-06 22:15:14,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 108 transitions. [2023-11-06 22:15:14,922 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 108 transitions. Word has length 95 [2023-11-06 22:15:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:15:14,923 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 108 transitions. [2023-11-06 22:15:14,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:14,923 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2023-11-06 22:15:14,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:15:14,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:15:14,926 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:14,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:15,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:15,138 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:15:15,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1880779568, now seen corresponding path program 1 times [2023-11-06 22:15:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281367483] [2023-11-06 22:15:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:15,199 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:15:15,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [7298236] [2023-11-06 22:15:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:15,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:15,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:15,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:15:15,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:15:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:15,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-06 22:15:15,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:15:16,905 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:15:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:15:20,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281367483] [2023-11-06 22:15:20,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:15:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7298236] [2023-11-06 22:15:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7298236] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:15:20,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:15:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-06 22:15:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018783491] [2023-11-06 22:15:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:20,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:15:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:15:20,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:15:20,402 INFO L87 Difference]: Start difference. First operand 81 states and 108 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:20,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:20,823 INFO L93 Difference]: Finished difference Result 220 states and 300 transitions. [2023-11-06 22:15:20,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:15:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2023-11-06 22:15:20,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:15:20,826 INFO L225 Difference]: With dead ends: 220 [2023-11-06 22:15:20,826 INFO L226 Difference]: Without dead ends: 149 [2023-11-06 22:15:20,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:15:20,829 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 94 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:15:20,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 417 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:15:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-06 22:15:20,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 96. [2023-11-06 22:15:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 63 states have (on average 1.1428571428571428) internal successors, (72), 66 states have internal predecessors, (72), 27 states have call successors, (27), 5 states have call predecessors, (27), 5 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2023-11-06 22:15:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2023-11-06 22:15:20,852 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 96 [2023-11-06 22:15:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:15:20,852 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2023-11-06 22:15:20,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:20,853 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2023-11-06 22:15:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 22:15:20,855 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:15:20,855 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:15:20,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:21,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:21,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:15:21,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:15:21,062 INFO L85 PathProgramCache]: Analyzing trace with hash -105772206, now seen corresponding path program 1 times [2023-11-06 22:15:21,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:15:21,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839388345] [2023-11-06 22:15:21,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:21,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:15:21,097 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:15:21,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839893050] [2023-11-06 22:15:21,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:15:21,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:21,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:15:21,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:15:21,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:15:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:15:21,197 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-06 22:15:21,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:15:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 12 proven. 30 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-06 22:15:22,098 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:15:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-06 22:15:25,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:15:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839388345] [2023-11-06 22:15:25,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:15:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839893050] [2023-11-06 22:15:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839893050] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-06 22:15:25,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:15:25,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-11-06 22:15:25,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085506479] [2023-11-06 22:15:25,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:15:25,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:15:25,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:15:25,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:15:25,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:15:25,628 INFO L87 Difference]: Start difference. First operand 96 states and 126 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:15:26,049 INFO L93 Difference]: Finished difference Result 227 states and 303 transitions. [2023-11-06 22:15:26,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-06 22:15:26,050 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 96 [2023-11-06 22:15:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:15:26,050 INFO L225 Difference]: With dead ends: 227 [2023-11-06 22:15:26,050 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:15:26,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2023-11-06 22:15:26,054 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 97 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:15:26,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 432 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:15:26,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:15:26,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:15:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:15:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:15:26,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2023-11-06 22:15:26,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:15:26,056 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:15:26,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-06 22:15:26,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:15:26,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:15:26,059 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:15:26,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:15:26,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:15:26,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:15:26,646 INFO L899 garLoopResultBuilder]: For program point L89(lines 67 90) no Hoare annotation was computed. [2023-11-06 22:15:26,646 INFO L899 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2023-11-06 22:15:26,646 INFO L902 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: true [2023-11-06 22:15:26,647 INFO L902 garLoopResultBuilder]: At program point L85-1(line 85) the Hoare annotation is: true [2023-11-06 22:15:26,647 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-06 22:15:26,647 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-06 22:15:26,647 INFO L902 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: true [2023-11-06 22:15:26,647 INFO L902 garLoopResultBuilder]: At program point L81-1(line 81) the Hoare annotation is: true [2023-11-06 22:15:26,647 INFO L895 garLoopResultBuilder]: At program point L19-3(line 19) the Hoare annotation is: (and (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256))) [2023-11-06 22:15:26,647 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-11-06 22:15:26,647 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 99 110) the Hoare annotation is: false [2023-11-06 22:15:26,647 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (or (<= (mod ~var_1_8~0 256) 0) (and (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256)))) [2023-11-06 22:15:26,648 INFO L895 garLoopResultBuilder]: At program point L69-1(line 69) the Hoare annotation is: (or (<= (mod ~var_1_8~0 256) 0) (and (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256)))) [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 66) no Hoare annotation was computed. [2023-11-06 22:15:26,648 INFO L895 garLoopResultBuilder]: At program point L102-2(lines 102 108) the Hoare annotation is: (or (<= (mod ~var_1_8~0 256) 0) (and (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256)))) [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point L102-3(lines 102 108) no Hoare annotation was computed. [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2023-11-06 22:15:26,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-06 22:15:26,649 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2023-11-06 22:15:26,649 INFO L902 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: true [2023-11-06 22:15:26,649 INFO L902 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2023-11-06 22:15:26,649 INFO L895 garLoopResultBuilder]: At program point property_returnLabel#1(lines 95 98) the Hoare annotation is: (let ((.cse4 (mod ~var_1_6~0 256))) (let ((.cse0 (not (= (mod ~var_1_8~0 256) 0))) (.cse1 (not (= |ULTIMATE.start_property_#res#1| 0))) (.cse2 (= ~var_1_7~0 ~var_1_11~0)) (.cse3 (= (mod ~var_1_1~0 256) .cse4))) (or (and .cse0 .cse1 .cse2 (< ~var_1_11~0 ~var_1_4~0) .cse3) (and .cse1 .cse2 (= (mod ~var_1_12~0 4294967296) .cse4) .cse3) (and .cse0 (= 0 (mod ~var_1_10~0 256)) .cse1 .cse2 .cse3)))) [2023-11-06 22:15:26,649 INFO L902 garLoopResultBuilder]: At program point L78-1(line 78) the Hoare annotation is: true [2023-11-06 22:15:26,649 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-11-06 22:15:26,649 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 45) no Hoare annotation was computed. [2023-11-06 22:15:26,649 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 36 66) no Hoare annotation was computed. [2023-11-06 22:15:26,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L46(lines 36 66) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L902 garLoopResultBuilder]: At program point L75(line 75) the Hoare annotation is: true [2023-11-06 22:15:26,650 INFO L902 garLoopResultBuilder]: At program point L75-1(line 75) the Hoare annotation is: true [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2023-11-06 22:15:26,650 INFO L899 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2023-11-06 22:15:26,651 INFO L902 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: true [2023-11-06 22:15:26,651 INFO L902 garLoopResultBuilder]: At program point L88-1(line 88) the Hoare annotation is: true [2023-11-06 22:15:26,651 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 51) no Hoare annotation was computed. [2023-11-06 22:15:26,651 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-11-06 22:15:26,651 INFO L895 garLoopResultBuilder]: At program point L72(line 72) the Hoare annotation is: (or (<= (mod ~var_1_8~0 256) 0) (and (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256)))) [2023-11-06 22:15:26,651 INFO L895 garLoopResultBuilder]: At program point L72-1(line 72) the Hoare annotation is: (or (<= (mod ~var_1_8~0 256) 0) (and (= ~var_1_7~0 ~var_1_11~0) (= (mod ~var_1_1~0 256) (mod ~var_1_6~0 256)))) [2023-11-06 22:15:26,651 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-06 22:15:26,651 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-11-06 22:15:26,652 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-11-06 22:15:26,652 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-06 22:15:26,655 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:15:26,659 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:15:26,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:15:26 BoogieIcfgContainer [2023-11-06 22:15:26,674 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:15:26,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:15:26,675 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:15:26,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:15:26,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:15:00" (3/4) ... [2023-11-06 22:15:26,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:15:26,682 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-06 22:15:26,689 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-06 22:15:26,689 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:15:26,689 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:15:26,690 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:15:26,719 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(((var_1_8 % 256) == 0)) && !((\result == 0))) && (var_1_7 == var_1_11)) && (var_1_11 < var_1_4)) && ((var_1_1 % 256) == (var_1_6 % 256))) || (((!((\result == 0)) && (var_1_7 == var_1_11)) && ((var_1_12 % 4294967296) == (var_1_6 % 256))) && ((var_1_1 % 256) == (var_1_6 % 256)))) || ((((!(((var_1_8 % 256) == 0)) && (0 == (var_1_10 % 256))) && !((\result == 0))) && (var_1_7 == var_1_11)) && ((var_1_1 % 256) == (var_1_6 % 256)))) [2023-11-06 22:15:26,746 WARN L115 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(((var_1_8 % 256) == 0)) && !((\result == 0))) && (var_1_7 == var_1_11)) && (var_1_11 < var_1_4)) && ((var_1_1 % 256) == (var_1_6 % 256))) || (((!((\result == 0)) && (var_1_7 == var_1_11)) && ((var_1_12 % 4294967296) == (var_1_6 % 256))) && ((var_1_1 % 256) == (var_1_6 % 256)))) || ((((!(((var_1_8 % 256) == 0)) && (0 == (var_1_10 % 256))) && !((\result == 0))) && (var_1_7 == var_1_11)) && ((var_1_1 % 256) == (var_1_6 % 256)))) [2023-11-06 22:15:26,759 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:15:26,760 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:15:26,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:15:26,761 INFO L158 Benchmark]: Toolchain (without parser) took 27580.50ms. Allocated memory was 136.3MB in the beginning and 736.1MB in the end (delta: 599.8MB). Free memory was 91.6MB in the beginning and 573.3MB in the end (delta: -481.7MB). Peak memory consumption was 120.2MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,761 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.4MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:26,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.77ms. Allocated memory is still 136.3MB. Free memory was 91.2MB in the beginning and 79.0MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.25ms. Allocated memory is still 136.3MB. Free memory was 79.0MB in the beginning and 76.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,763 INFO L158 Benchmark]: Boogie Preprocessor took 32.80ms. Allocated memory is still 136.3MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:15:26,763 INFO L158 Benchmark]: RCFGBuilder took 698.69ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 74.8MB in the beginning and 157.4MB in the end (delta: -82.6MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,764 INFO L158 Benchmark]: TraceAbstraction took 26317.54ms. Allocated memory was 186.6MB in the beginning and 736.1MB in the end (delta: 549.5MB). Free memory was 156.5MB in the beginning and 577.5MB in the end (delta: -421.0MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,764 INFO L158 Benchmark]: Witness Printer took 85.72ms. Allocated memory is still 736.1MB. Free memory was 577.5MB in the beginning and 573.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:15:26,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 54.6MB in the beginning and 54.4MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.77ms. Allocated memory is still 136.3MB. Free memory was 91.2MB in the beginning and 79.0MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.25ms. Allocated memory is still 136.3MB. Free memory was 79.0MB in the beginning and 76.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.80ms. Allocated memory is still 136.3MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 698.69ms. Allocated memory was 136.3MB in the beginning and 186.6MB in the end (delta: 50.3MB). Free memory was 74.8MB in the beginning and 157.4MB in the end (delta: -82.6MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. * TraceAbstraction took 26317.54ms. Allocated memory was 186.6MB in the beginning and 736.1MB in the end (delta: 549.5MB). Free memory was 156.5MB in the beginning and 577.5MB in the end (delta: -421.0MB). Peak memory consumption was 128.4MB. Max. memory is 16.1GB. * Witness Printer took 85.72ms. Allocated memory is still 736.1MB. Free memory was 577.5MB in the beginning and 573.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.2s, OverallIterations: 5, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 326 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293 mSDsluCounter, 1444 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 991 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 453 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 776 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 93 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 135 PreInvPairs, 190 NumberOfFragments, 186 HoareAnnotationTreeSize, 135 FomulaSimplifications, 2618 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 1149 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.1s InterpolantComputationTime, 569 NumberOfCodeBlocks, 569 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 753 ConstructedInterpolants, 0 QuantifiedInterpolants, 1363 SizeOfPredicates, 58 NumberOfNonLiveVariables, 1158 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 3246/3360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: (((var_1_8 % 256) <= 0) || ((var_1_7 == var_1_11) && ((var_1_1 % 256) == (var_1_6 % 256)))) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: ((((((!(((var_1_8 % 256) == 0)) && !((\result == 0))) && (var_1_7 == var_1_11)) && (var_1_11 < var_1_4)) && ((var_1_1 % 256) == (var_1_6 % 256))) || (((!((\result == 0)) && (var_1_7 == var_1_11)) && ((var_1_12 % 4294967296) == (var_1_6 % 256))) && ((var_1_1 % 256) == (var_1_6 % 256)))) || ((((!(((var_1_8 % 256) == 0)) && (0 == (var_1_10 % 256))) && !((\result == 0))) && (var_1_7 == var_1_11)) && ((var_1_1 % 256) == (var_1_6 % 256)))) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ((!((cond == 0)) && (var_1_7 == var_1_11)) && ((var_1_1 % 256) == (var_1_6 % 256))) RESULT: Ultimate proved your program to be correct! [2023-11-06 22:15:26,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b355ced-c001-411d-816e-2f78f269ea64/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE