./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.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_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/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_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/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_94392683-d70a-4789-987d-402213803f41/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 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:13,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:13,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:59:13,161 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:13,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:13,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:13,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:13,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:13,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:59:13,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:59:13,195 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:13,196 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:13,197 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:13,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:13,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:59:13,199 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:59:13,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:59:13,200 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:59:13,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:13,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:59:13,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:59:13,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:59:13,204 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:59:13,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:13,206 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:13,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:13,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:13,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:59:13,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:13,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:13,210 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:59:13,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:59:13,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:59:13,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:59:13,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:59:13,213 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:59:13,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:59:13,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:59:13,215 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:59:13,215 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_94392683-d70a-4789-987d-402213803f41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 [2023-11-06 22:59:13,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:13,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:13,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:13,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:13,586 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:13,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:16,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:17,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:17,178 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:17,191 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/d416c3517/2d5a8faaf37146e8bcd95cf1acd5c2d4/FLAG34d6aceaf [2023-11-06 22:59:17,471 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/d416c3517/2d5a8faaf37146e8bcd95cf1acd5c2d4 [2023-11-06 22:59:17,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:17,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:17,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:17,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:17,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:17,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2ac545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17, skipping insertion in model container [2023-11-06 22:59:17,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,544 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:17,740 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_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-11-06 22:59:17,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:17,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:17,851 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_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-11-06 22:59:17,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:17,891 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:17,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17 WrapperNode [2023-11-06 22:59:17,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:17,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:17,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:17,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:17,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,976 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-06 22:59:17,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:17,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:17,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:17,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:17,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:17,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:18,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:18,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:18,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:18,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (1/1) ... [2023-11-06 22:59:18,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:18,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:18,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:18,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:18,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:59:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:59:18,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:59:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:59:18,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:18,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:18,192 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:18,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:18,553 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:18,560 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:18,561 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:59:18,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:18 BoogieIcfgContainer [2023-11-06 22:59:18,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:18,567 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:18,567 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:18,581 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:18,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:17" (1/3) ... [2023-11-06 22:59:18,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598cbd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:18, skipping insertion in model container [2023-11-06 22:59:18,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:17" (2/3) ... [2023-11-06 22:59:18,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598cbd11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:18, skipping insertion in model container [2023-11-06 22:59:18,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:18" (3/3) ... [2023-11-06 22:59:18,587 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:18,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:18,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:59:18,672 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:18,680 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;@287b6c80, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:18,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:59:18,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:18,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:18,702 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:18,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:18,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1230558902, now seen corresponding path program 1 times [2023-11-06 22:59:18,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:18,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857209050] [2023-11-06 22:59:18,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:18,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:19,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:59:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:59:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-06 22:59:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:59:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:59:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:59:19,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:19,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857209050] [2023-11-06 22:59:19,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857209050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:19,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:19,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:19,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226002269] [2023-11-06 22:59:19,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:19,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:59:19,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:19,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:59:19,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:19,203 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:19,259 INFO L93 Difference]: Finished difference Result 87 states and 142 transitions. [2023-11-06 22:59:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:59:19,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2023-11-06 22:59:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:19,274 INFO L225 Difference]: With dead ends: 87 [2023-11-06 22:59:19,274 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:59:19,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:19,287 INFO L413 NwaCegarLoop]: 60 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, 60 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 22:59:19,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:59:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-06 22:59:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2023-11-06 22:59:19,344 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 92 [2023-11-06 22:59:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:19,345 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2023-11-06 22:59:19,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-11-06 22:59:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:19,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:19,352 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:19,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:59:19,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:19,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:19,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1070173934, now seen corresponding path program 1 times [2023-11-06 22:59:19,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:19,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067053367] [2023-11-06 22:59:19,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:19,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-06 22:59:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-06 22:59:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:59:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-06 22:59:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-06 22:59:19,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:59:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:59:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:59:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-06 22:59:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-06 22:59:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:59:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-06 22:59:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:59:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-06 22:59:19,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:19,829 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:59:19,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:59:19,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067053367] [2023-11-06 22:59:19,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067053367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:19,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:19,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:19,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6485841] [2023-11-06 22:59:19,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:19,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:19,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:59:19,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:19,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:19,836 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:59:20,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:20,080 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2023-11-06 22:59:20,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:20,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:59:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:20,088 INFO L225 Difference]: With dead ends: 83 [2023-11-06 22:59:20,089 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:59:20,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:20,098 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 56 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:20,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 76 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:59:20,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:59:20,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-06 22:59:20,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2023-11-06 22:59:20,140 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 92 [2023-11-06 22:59:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:20,144 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2023-11-06 22:59:20,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:59:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2023-11-06 22:59:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:20,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:20,157 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:20,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:59:20,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:20,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1012915632, now seen corresponding path program 1 times [2023-11-06 22:59:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:59:20,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165971135] [2023-11-06 22:59:20,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:20,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:59:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:20,391 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:59:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:59:20,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:59:20,517 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:59:20,519 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-06 22:59:20,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:59:20,525 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:59:20,529 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:59:20,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:59:20 BoogieIcfgContainer [2023-11-06 22:59:20,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:59:20,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:59:20,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:59:20,625 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:59:20,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:18" (3/4) ... [2023-11-06 22:59:20,628 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:59:20,629 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:59:20,631 INFO L158 Benchmark]: Toolchain (without parser) took 3145.01ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 91.5MB in the beginning and 106.3MB in the end (delta: -14.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-06 22:59:20,631 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:20,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.24ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:59:20,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.49ms. Allocated memory is still 125.8MB. Free memory was 79.3MB in the beginning and 76.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:59:20,633 INFO L158 Benchmark]: Boogie Preprocessor took 38.29ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:20,634 INFO L158 Benchmark]: RCFGBuilder took 547.04ms. Allocated memory is still 125.8MB. Free memory was 75.6MB in the beginning and 60.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:59:20,635 INFO L158 Benchmark]: TraceAbstraction took 2057.80ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 60.0MB in the beginning and 106.3MB in the end (delta: -46.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:20,635 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 153.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:59:20,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.24ms. Allocated memory is still 125.8MB. Free memory was 91.5MB in the beginning and 79.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.49ms. Allocated memory is still 125.8MB. Free memory was 79.3MB in the beginning and 76.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.29ms. Allocated memory is still 125.8MB. Free memory was 76.8MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 547.04ms. Allocated memory is still 125.8MB. Free memory was 75.6MB in the beginning and 60.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2057.80ms. Allocated memory was 125.8MB in the beginning and 153.1MB in the end (delta: 27.3MB). Free memory was 60.0MB in the beginning and 106.3MB in the end (delta: -46.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 153.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryArithmeticFLOAToperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] float var_1_12 = 2.4; [L29] float var_1_13 = 127.75; [L30] float var_1_14 = 0.0; [L31] float var_1_15 = 31.4; [L32] float var_1_16 = 256.75; [L33] float var_1_17 = 256.6; [L34] signed long int var_1_18 = 0; [L35] unsigned char var_1_19 = 32; [L36] unsigned char var_1_20 = 100; VAL [isInitial=0, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L67] var_1_4 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L72] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L75] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L76] var_1_7 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L77] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L79] var_1_13 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L80] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L81] var_1_14 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L82] RET assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L83] var_1_15 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L84] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] var_1_16 = __VERIFIER_nondet_float() [L86] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L86] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L87] var_1_20 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L88] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] CALL assume_abort_if_not(var_1_20 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] RET assume_abort_if_not(var_1_20 <= 254) VAL [isInitial=1, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L102] RET updateVariables() [L103] CALL step() [L40] var_1_17 = var_1_14 [L41] var_1_19 = var_1_20 [L42] var_1_18 = var_1_19 [L43] unsigned char stepLocal_1 = var_1_19; [L44] signed long int stepLocal_0 = (var_1_18 * var_1_18) * (var_1_19 - var_1_19); VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L45] COND FALSE !(stepLocal_0 >= 1u) [L52] var_1_8 = var_1_19 VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L54] signed long int stepLocal_2 = var_1_8; VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_12=12/5, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L55] COND FALSE !(var_1_19 > stepLocal_2) [L58] var_1_12 = (var_1_16 - (var_1_14 + var_1_15)) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L60] COND TRUE var_1_18 >= (8u * var_1_8) [L61] var_1_1 = (! (var_1_4 || (var_1_5 || var_1_6))) VAL [isInitial=1, stepLocal_0=0, stepLocal_1=0, stepLocal_2=0, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L103] RET step() [L104] CALL, EXPR property() [L94-L95] return ((((((var_1_18 >= (8u * var_1_8)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && ((((var_1_18 * var_1_18) * (var_1_19 - var_1_19)) >= 1u) ? ((var_1_18 <= var_1_19) ? (var_1_8 == ((signed long int) var_1_19)) : (var_1_8 == ((signed long int) var_1_19))) : (var_1_8 == ((signed long int) var_1_19)))) && ((var_1_19 > var_1_8) ? (var_1_12 == ((float) (var_1_13 + ((var_1_14 - var_1_15) - var_1_16)))) : (var_1_12 == ((float) (var_1_16 - (var_1_14 + var_1_15)))))) && (var_1_17 == ((float) var_1_14))) && (var_1_18 == ((signed long int) var_1_19))) && (var_1_19 == ((unsigned char) var_1_20)) ; VAL [\result=0, isInitial=1, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_13=773, var_1_14=776, var_1_15=774, var_1_16=775, var_1_17=776, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 114 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 728/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:59:20,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/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_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/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 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:59:23,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:59:23,648 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:59:23,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:59:23,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:59:23,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:59:23,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:59:23,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:59:23,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:59:23,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:59:23,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:59:23,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:59:23,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:59:23,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:59:23,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:59:23,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:59:23,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:59:23,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:59:23,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:59:23,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:59:23,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:59:23,749 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:59:23,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:59:23,751 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:59:23,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:59:23,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:59:23,752 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:59:23,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:59:23,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:59:23,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:59:23,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:23,757 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:59:23,757 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:59:23,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:59:23,758 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:59:23,759 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:59:23,759 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:59:23,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:59:23,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:59:23,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:59:23,762 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:59:23,762 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:59:23,763 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_94392683-d70a-4789-987d-402213803f41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83837f94fc7bd30360fd01d655750d82d3cc2bacf5947cc8d97518c23fb519c1 [2023-11-06 22:59:24,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:59:24,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:59:24,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:59:24,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:59:24,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:59:24,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:27,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:59:27,745 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:59:27,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:27,757 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/2b11e3b7f/168bc51b749548a0b3afe3ac76c4e0cb/FLAG232c40e81 [2023-11-06 22:59:27,770 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/data/2b11e3b7f/168bc51b749548a0b3afe3ac76c4e0cb [2023-11-06 22:59:27,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:59:27,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:59:27,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:27,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:59:27,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:59:27,790 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:27" (1/1) ... [2023-11-06 22:59:27,791 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b040e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:27, skipping insertion in model container [2023-11-06 22:59:27,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:59:27" (1/1) ... [2023-11-06 22:59:27,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:59:28,052 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_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-11-06 22:59:28,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:28,167 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:59:28,186 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_94392683-d70a-4789-987d-402213803f41/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-8.i[912,925] [2023-11-06 22:59:28,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:59:28,256 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:59:28,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28 WrapperNode [2023-11-06 22:59:28,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:59:28,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:28,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:59:28,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:59:28,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,346 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-06 22:59:28,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:59:28,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:59:28,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:59:28,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:59:28,360 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:59:28,428 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:59:28,428 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:59:28,429 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:59:28,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (1/1) ... [2023-11-06 22:59:28,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:59:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:59:28,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:59:28,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:59:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:59:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:59:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:59:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:59:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:59:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:59:28,718 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:59:28,721 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:59:31,161 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:31,174 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:31,174 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:59:31,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:31 BoogieIcfgContainer [2023-11-06 22:59:31,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:31,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:31,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:31,191 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:31,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:59:27" (1/3) ... [2023-11-06 22:59:31,192 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ecc029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:31, skipping insertion in model container [2023-11-06 22:59:31,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:59:28" (2/3) ... [2023-11-06 22:59:31,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ecc029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:31, skipping insertion in model container [2023-11-06 22:59:31,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:31" (3/3) ... [2023-11-06 22:59:31,197 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-8.i [2023-11-06 22:59:31,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:31,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:59:31,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:59:31,290 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;@254477d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:59:31,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:59:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:31,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:31,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:31,308 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:31,309 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:31,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:31,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1230558902, now seen corresponding path program 1 times [2023-11-06 22:59:31,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:31,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049865000] [2023-11-06 22:59:31,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:31,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:31,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:31,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:31,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:59:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:31,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:59:31,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-11-06 22:59:31,847 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:31,848 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:31,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049865000] [2023-11-06 22:59:31,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1049865000] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:31,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:31,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:59:31,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051322557] [2023-11-06 22:59:31,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:31,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:59:31,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:59:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:31,901 INFO L87 Difference]: Start difference. First operand has 47 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:31,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:31,946 INFO L93 Difference]: Finished difference Result 87 states and 142 transitions. [2023-11-06 22:59:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:59:31,951 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2023-11-06 22:59:31,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:31,961 INFO L225 Difference]: With dead ends: 87 [2023-11-06 22:59:31,961 INFO L226 Difference]: Without dead ends: 43 [2023-11-06 22:59:31,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:59:31,970 INFO L413 NwaCegarLoop]: 60 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, 60 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 22:59:31,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:59:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-06 22:59:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-06 22:59:32,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2023-11-06 22:59:32,031 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 92 [2023-11-06 22:59:32,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:32,032 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2023-11-06 22:59:32,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-06 22:59:32,033 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-11-06 22:59:32,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:32,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:32,038 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:32,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:32,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:32,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:32,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:32,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1070173934, now seen corresponding path program 1 times [2023-11-06 22:59:32,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:32,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290777330] [2023-11-06 22:59:32,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:32,255 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:32,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:32,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:32,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:59:32,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:32,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:59:32,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:32,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-06 22:59:32,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:59:32,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:32,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290777330] [2023-11-06 22:59:32,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290777330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:59:32,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:59:32,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:59:32,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324445341] [2023-11-06 22:59:32,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:59:32,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:59:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:59:32,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:59:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:59:32,864 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:59:34,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-06 22:59:35,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:35,677 INFO L93 Difference]: Finished difference Result 112 states and 159 transitions. [2023-11-06 22:59:35,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:59:35,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 92 [2023-11-06 22:59:35,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:35,682 INFO L225 Difference]: With dead ends: 112 [2023-11-06 22:59:35,683 INFO L226 Difference]: Without dead ends: 72 [2023-11-06 22:59:35,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:59:35,686 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 54 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:35,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 202 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-06 22:59:35,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-06 22:59:35,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 43. [2023-11-06 22:59:35,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 22:59:35,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 59 transitions. [2023-11-06 22:59:35,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 59 transitions. Word has length 92 [2023-11-06 22:59:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:35,718 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 59 transitions. [2023-11-06 22:59:35,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-06 22:59:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 59 transitions. [2023-11-06 22:59:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-06 22:59:35,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:35,723 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:35,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:35,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:35,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:59:35,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:35,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1012915632, now seen corresponding path program 1 times [2023-11-06 22:59:35,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:35,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672219678] [2023-11-06 22:59:35,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:35,955 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:35,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:35,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:35,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94392683-d70a-4789-987d-402213803f41/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:59:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:36,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-06 22:59:36,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:56,153 WARN L293 SmtUtils]: Spent 5.65s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 23:00:13,117 WARN L293 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-06 23:01:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 270 proven. 72 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 23:01:34,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:03:30,046 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse21 ((_ zero_extend 24) c_~var_1_19~0)) (.cse20 ((_ zero_extend 24) c_~var_1_1~0))) (let ((.cse4 (forall ((~var_1_7~0 (_ BitVec 8))) (not (= ((_ zero_extend 24) ~var_1_7~0) .cse20)))) (.cse3 (forall ((~var_1_7~0 (_ BitVec 8))) (= ((_ zero_extend 24) ~var_1_7~0) .cse20))) (.cse22 (bvsgt .cse21 c_~var_1_8~0))) (and (or (let ((.cse5 (= .cse20 (_ bv1 32))) (.cse18 (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0) c_~var_1_16~0)) (.cse19 (and (= .cse21 ((_ zero_extend 24) c_~var_1_20~0)) (fp.eq c_~var_1_12~0 (fp.sub c_currentRoundingMode c_~var_1_16~0 (fp.add c_currentRoundingMode c_~var_1_14~0 c_~var_1_15~0))) (fp.eq c_~var_1_17~0 c_~var_1_14~0) (= .cse21 c_~var_1_18~0) (= c_~var_1_8~0 .cse21))) (.cse10 (= c_~var_1_4~0 (_ bv0 8))) (.cse11 (= c_~var_1_5~0 (_ bv0 8))) (.cse12 (= c_~var_1_6~0 (_ bv0 8)))) (let ((.cse13 (not .cse12)) (.cse14 (not .cse11)) (.cse15 (not .cse10)) (.cse6 (= .cse20 (_ bv0 32))) (.cse16 (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (fp.eq c_~var_1_12~0 (fp.add c_currentRoundingMode ~var_1_13~0 .cse18))) .cse19)) (.cse17 (or (forall ((~var_1_13~0 (_ FloatingPoint 8 24))) (not (fp.eq c_~var_1_12~0 (fp.add c_currentRoundingMode ~var_1_13~0 .cse18)))) .cse19)) (.cse8 (not .cse5))) (let ((.cse0 (bvuge c_~var_1_18~0 (bvmul (_ bv8 32) c_~var_1_8~0))) (.cse1 (or (and .cse10 .cse11 .cse12 .cse16 .cse17) .cse8)) (.cse2 (or .cse5 (and (or .cse13 .cse14 .cse15) .cse16 .cse17 .cse6)))) (and (or (and .cse0 .cse1 .cse2) .cse3) (or .cse4 (and (or .cse0 (let ((.cse7 (let ((.cse9 (and .cse16 .cse17))) (and (or .cse9 (and .cse10 .cse11 .cse12)) (or .cse13 .cse14 .cse15 .cse9))))) (and (or .cse5 (and (or (not .cse6) .cse7) (or .cse7 .cse6))) (or .cse8 .cse7)))) (or (not .cse0) (and .cse1 .cse2)))))))) .cse22) (or (and .cse4 .cse3) (not .cse22))))) is different from false