./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:56,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:56,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:59:56,881 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:56,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:56,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:56,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:56,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:56,924 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:56,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:56,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:56,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:56,941 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:56,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:56,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:56,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:56,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:56,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:56,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:56,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:56,947 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:56,947 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:56,948 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:56,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:56,950 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:56,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:56,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:56,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:56,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:56,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:56,954 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:56,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:56,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:56,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:56,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:56,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:56,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:56,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:56,957 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:56,957 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_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2023-11-19 07:59:57,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:57,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:57,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:57,357 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:57,358 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:57,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:00,442 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:00,715 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:00,716 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:00,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/04da2a698/d1dea43331fa4ff18dd8f48890bb1fb7/FLAG8b7ab9274 [2023-11-19 08:00:00,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/04da2a698/d1dea43331fa4ff18dd8f48890bb1fb7 [2023-11-19 08:00:00,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:00,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:00,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:00,780 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:00,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:00,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:00" (1/1) ... [2023-11-19 08:00:00,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78528456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:00, skipping insertion in model container [2023-11-19 08:00:00,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:00" (1/1) ... [2023-11-19 08:00:00,837 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:01,008 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_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-19 08:00:01,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:01,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:01,087 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_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-19 08:00:01,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:01,134 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:01,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01 WrapperNode [2023-11-19 08:00:01,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:01,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:01,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:01,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:01,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,208 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2023-11-19 08:00:01,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:01,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:01,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:01,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:01,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:01,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:01,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:01,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:01,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (1/1) ... [2023-11-19 08:00:01,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:01,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:01,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:01,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:01,362 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:00:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:00:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:01,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:01,478 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:01,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:01,888 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:01,897 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:01,898 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:00:01,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:01 BoogieIcfgContainer [2023-11-19 08:00:01,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:01,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:01,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:01,913 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:01,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:00" (1/3) ... [2023-11-19 08:00:01,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274c5f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:01, skipping insertion in model container [2023-11-19 08:00:01,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:01" (2/3) ... [2023-11-19 08:00:01,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274c5f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:01, skipping insertion in model container [2023-11-19 08:00:01,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:01" (3/3) ... [2023-11-19 08:00:01,917 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:01,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:01,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:00:02,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:02,036 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1004d8cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:02,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:00:02,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 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) [2023-11-19 08:00:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 08:00:02,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:02,056 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:02,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:02,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1738872337, now seen corresponding path program 1 times [2023-11-19 08:00:02,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:02,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169230138] [2023-11-19 08:00:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:02,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:00:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:00:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:00:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:00:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 08:00:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 08:00:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:00:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 08:00:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:00:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:00:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:00:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 08:00:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 08:00:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:00:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 08:00:02,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169230138] [2023-11-19 08:00:02,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169230138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:02,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:02,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:02,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225560049] [2023-11-19 08:00:02,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:02,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:02,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:02,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:02,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:02,562 INFO L87 Difference]: Start difference. First operand has 56 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 40 states have internal predecessors, (55), 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 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-19 08:00:02,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:02,617 INFO L93 Difference]: Finished difference Result 105 states and 174 transitions. [2023-11-19 08:00:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:02,621 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 95 [2023-11-19 08:00:02,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:02,632 INFO L225 Difference]: With dead ends: 105 [2023-11-19 08:00:02,632 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 08:00:02,647 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 [2023-11-19 08:00:02,654 INFO L413 NwaCegarLoop]: 76 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, 76 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:02,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:02,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 08:00:02,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 08:00:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 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) [2023-11-19 08:00:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 76 transitions. [2023-11-19 08:00:02,715 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 76 transitions. Word has length 95 [2023-11-19 08:00:02,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:02,716 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 76 transitions. [2023-11-19 08:00:02,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2023-11-19 08:00:02,717 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 76 transitions. [2023-11-19 08:00:02,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 08:00:02,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:02,725 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:02,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:02,726 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:02,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 994985331, now seen corresponding path program 1 times [2023-11-19 08:00:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:02,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370929478] [2023-11-19 08:00:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:02,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:00:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:00:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:00:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:00:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 08:00:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 08:00:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:00:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 08:00:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:00:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:00:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:00:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 08:00:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 08:00:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:00:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 08:00:03,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:03,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370929478] [2023-11-19 08:00:03,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370929478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:03,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:03,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:00:03,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233857509] [2023-11-19 08:00:03,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:03,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:03,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:03,225 INFO L87 Difference]: Start difference. First operand 52 states and 76 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-19 08:00:03,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:03,358 INFO L93 Difference]: Finished difference Result 118 states and 172 transitions. [2023-11-19 08:00:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:03,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 95 [2023-11-19 08:00:03,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:03,362 INFO L225 Difference]: With dead ends: 118 [2023-11-19 08:00:03,362 INFO L226 Difference]: Without dead ends: 69 [2023-11-19 08:00:03,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:03,366 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 30 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:03,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 197 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:00:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-19 08:00:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 56. [2023-11-19 08:00:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 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) [2023-11-19 08:00:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2023-11-19 08:00:03,384 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 95 [2023-11-19 08:00:03,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2023-11-19 08:00:03,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-19 08:00:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2023-11-19 08:00:03,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 08:00:03,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:03,397 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:03,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:03,398 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:03,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:03,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1514823858, now seen corresponding path program 1 times [2023-11-19 08:00:03,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:03,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556333116] [2023-11-19 08:00:03,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:03,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 08:00:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 08:00:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 08:00:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-19 08:00:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-19 08:00:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 08:00:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 08:00:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-19 08:00:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-19 08:00:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 08:00:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 08:00:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-19 08:00:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 08:00:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 08:00:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:03,970 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 08:00:03,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:03,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556333116] [2023-11-19 08:00:03,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556333116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:03,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:03,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:00:03,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793802031] [2023-11-19 08:00:03,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:03,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:03,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:03,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:03,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:03,978 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-11-19 08:00:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:04,247 INFO L93 Difference]: Finished difference Result 174 states and 251 transitions. [2023-11-19 08:00:04,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:00:04,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 97 [2023-11-19 08:00:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:04,256 INFO L225 Difference]: With dead ends: 174 [2023-11-19 08:00:04,256 INFO L226 Difference]: Without dead ends: 121 [2023-11-19 08:00:04,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:04,259 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 81 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:04,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 268 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:00:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-19 08:00:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 111. [2023-11-19 08:00:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 08:00:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2023-11-19 08:00:04,283 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 97 [2023-11-19 08:00:04,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:04,283 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2023-11-19 08:00:04,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-11-19 08:00:04,284 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2023-11-19 08:00:04,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-19 08:00:04,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:04,286 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:04,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:04,286 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:04,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1256658420, now seen corresponding path program 1 times [2023-11-19 08:00:04,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:04,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999086642] [2023-11-19 08:00:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:04,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:04,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:00:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:04,515 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:00:04,515 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:00:04,516 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:00:04,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:04,521 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:00:04,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:00:04,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 08:00:04,716 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 08:00:04,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 08:00:04,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 08:00:04,717 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 08:00:04,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-19 08:00:04,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:00:04 BoogieIcfgContainer [2023-11-19 08:00:04,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:00:04,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:04,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:04,757 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:04,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:01" (3/4) ... [2023-11-19 08:00:04,760 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:00:04,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:04,763 INFO L158 Benchmark]: Toolchain (without parser) took 3988.57ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 122.1MB in the beginning and 144.1MB in the end (delta: -22.1MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,763 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:04,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 109.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.67ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 105.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,772 INFO L158 Benchmark]: Boogie Preprocessor took 53.98ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,773 INFO L158 Benchmark]: RCFGBuilder took 638.41ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 84.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,774 INFO L158 Benchmark]: TraceAbstraction took 2850.89ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 83.7MB in the beginning and 144.1MB in the end (delta: -60.4MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2023-11-19 08:00:04,774 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 182.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:04,776 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 115.3MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.60ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 109.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.67ms. Allocated memory is still 151.0MB. Free memory was 109.5MB in the beginning and 105.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.98ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 103.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 638.41ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 84.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2850.89ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 83.7MB in the beginning and 144.1MB in the end (delta: -60.4MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 182.5MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryDOUBLEComparisonOperation at line 99. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 128.75; [L23] unsigned char var_1_2 = 1; [L24] float var_1_3 = 63.5; [L25] float var_1_4 = 255.5; [L26] unsigned char var_1_5 = 32; [L27] unsigned char var_1_9 = 25; [L28] unsigned char var_1_10 = 128; [L29] unsigned char var_1_11 = 16; [L30] unsigned char var_1_12 = 2; [L31] unsigned char var_1_14 = 5; [L32] unsigned char var_1_15 = 10; [L33] double var_1_16 = 3.75; [L34] unsigned char var_1_17 = 0; [L35] double var_1_18 = 255.5; [L36] unsigned char last_1_var_1_5 = 32; [L37] unsigned char last_1_var_1_12 = 2; [L38] unsigned char last_1_var_1_17 = 0; VAL [isInitial=0, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L103] isInitial = 1 [L104] FCALL initially() [L105] COND TRUE 1 [L106] CALL updateLastVariables() [L94] last_1_var_1_5 = var_1_5 [L95] last_1_var_1_12 = var_1_12 [L96] last_1_var_1_17 = var_1_17 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L106] RET updateLastVariables() [L107] CALL updateVariables() [L70] var_1_2 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L71] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L72] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L72] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=127/2, var_1_4=511/2, var_1_5=32, var_1_9=25] [L73] var_1_3 = __VERIFIER_nondet_float() [L74] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=511/2, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=511/2, var_1_5=32, var_1_9=25] [L74] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=511/2, var_1_5=32, var_1_9=25] [L75] var_1_4 = __VERIFIER_nondet_float() [L76] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=25] [L76] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=25] [L77] var_1_9 = __VERIFIER_nondet_uchar() [L78] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L78] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L79] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L79] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=128, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L80] var_1_10 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_10 >= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L81] RET assume_abort_if_not(var_1_10 >= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L82] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L82] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=16, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L83] var_1_11 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L84] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L85] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L85] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=5, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L86] var_1_14 = __VERIFIER_nondet_uchar() [L87] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L87] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L88] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L88] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=10, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L89] var_1_15 = __VERIFIER_nondet_uchar() [L90] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L90] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L91] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L91] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L107] RET updateVariables() [L108] CALL step() [L42] EXPR last_1_var_1_17 | last_1_var_1_12 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=32, var_1_9=253] [L42] signed long int stepLocal_0 = last_1_var_1_17 | last_1_var_1_12; [L43] COND FALSE !((last_1_var_1_5 / -2) >= stepLocal_0) [L46] var_1_5 = (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L48] COND FALSE !(! var_1_2) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=15/4, var_1_17=0, var_1_18=511/2, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L53] var_1_16 = var_1_4 [L54] var_1_17 = var_1_9 [L55] var_1_18 = var_1_3 [L56] unsigned char stepLocal_1 = var_1_9; VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, stepLocal_1=253, var_1_10=127, var_1_11=127, var_1_12=2, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L57] COND FALSE !((var_1_5 + var_1_11) >= stepLocal_1) [L66] var_1_12 = var_1_9 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, stepLocal_0=2, stepLocal_1=253, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L99] EXPR last_1_var_1_17 | last_1_var_1_12 VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L99] EXPR ((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11))))))) VAL [isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L99-L100] return ((((((! var_1_2) ? (var_1_2 ? (var_1_1 == ((float) ((((var_1_3) > (var_1_4)) ? (var_1_3) : (var_1_4))))) : 1) : 1) && (((last_1_var_1_5 / -2) >= (last_1_var_1_17 | last_1_var_1_12)) ? (var_1_5 == ((unsigned char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_5 == ((unsigned char) (var_1_10 - ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))))))) && (((var_1_5 + var_1_11) >= var_1_9) ? ((((((var_1_4) > ((var_1_1 * var_1_3))) ? (var_1_4) : ((var_1_1 * var_1_3)))) <= var_1_1) ? (var_1_12 == ((unsigned char) ((((var_1_11) > (var_1_14)) ? (var_1_11) : (var_1_14))))) : (var_1_2 ? (var_1_12 == ((unsigned char) (var_1_11 + var_1_15))) : 1)) : (var_1_12 == ((unsigned char) var_1_9)))) && (var_1_16 == ((double) var_1_4))) && (var_1_17 == ((unsigned char) var_1_9))) && (var_1_18 == ((double) var_1_3)) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=2, last_1_var_1_17=0, last_1_var_1_5=32, var_1_10=127, var_1_11=127, var_1_12=253, var_1_14=126, var_1_15=125, var_1_16=261, var_1_17=253, var_1_18=260, var_1_1=515/4, var_1_2=1, var_1_3=260, var_1_4=261, var_1_5=0, var_1_9=253] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 541 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 320 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 132 IncrementalHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 221 mSDtfsCounter, 132 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 23 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 371 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1092/1092 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 08:00:04,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:07,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:07,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 08:00:07,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:07,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:07,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:07,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:07,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:07,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:07,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:07,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:07,847 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:07,848 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:07,848 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:07,848 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:07,849 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:07,849 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:07,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:07,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:07,850 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:07,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:07,851 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:00:07,852 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 08:00:07,852 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 08:00:07,853 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:07,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:07,854 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:07,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:07,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:07,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:07,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:07,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:07,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:07,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:07,857 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 08:00:07,858 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 08:00:07,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:07,858 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:07,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:07,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:07,860 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 08:00:07,860 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:07,860 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_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9a450555877b28033d09a5f84176dfa3dbe8a5a81fc1d86d82c451af47112ce [2023-11-19 08:00:08,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:08,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:08,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:08,320 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:08,321 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:08,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:11,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:12,018 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:12,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:12,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/f7a4ba827/72ac29b8bce14a96a0fe6d22e3c3cf2a/FLAGc0212ac77 [2023-11-19 08:00:12,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/data/f7a4ba827/72ac29b8bce14a96a0fe6d22e3c3cf2a [2023-11-19 08:00:12,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:12,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:12,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:12,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:12,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:12,063 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6986012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12, skipping insertion in model container [2023-11-19 08:00:12,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,107 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:12,272 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_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-19 08:00:12,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:12,334 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:12,346 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_bd821954-0be3-4c73-b183-a9e4ec95d174/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-82.i[913,926] [2023-11-19 08:00:12,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:12,394 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:12,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12 WrapperNode [2023-11-19 08:00:12,395 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:12,396 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:12,397 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:12,397 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:12,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,483 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 109 [2023-11-19 08:00:12,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:12,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:12,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:12,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:12,505 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,560 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:12,612 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:12,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:12,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:12,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (1/1) ... [2023-11-19 08:00:12,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:12,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:12,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:12,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 08:00:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 08:00:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 08:00:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:12,849 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:12,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:15,244 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:15,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:15,263 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 08:00:15,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:15 BoogieIcfgContainer [2023-11-19 08:00:15,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:15,274 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:15,275 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:15,279 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:15,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:12" (1/3) ... [2023-11-19 08:00:15,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69edd65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:15, skipping insertion in model container [2023-11-19 08:00:15,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:12" (2/3) ... [2023-11-19 08:00:15,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69edd65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:15, skipping insertion in model container [2023-11-19 08:00:15,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:15" (3/3) ... [2023-11-19 08:00:15,285 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-82.i [2023-11-19 08:00:15,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:15,309 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:00:15,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:15,396 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4f076dce, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:15,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:00:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 08:00:15,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 08:00:15,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:15,425 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] [2023-11-19 08:00:15,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:15,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash 765478487, now seen corresponding path program 1 times [2023-11-19 08:00:15,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:15,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397692468] [2023-11-19 08:00:15,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:15,459 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 [2023-11-19 08:00:15,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:15,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:00:15,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:15,819 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 08:00:15,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-19 08:00:15,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:15,881 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:15,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397692468] [2023-11-19 08:00:15,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [397692468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:15,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:15,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991253148] [2023-11-19 08:00:15,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:15,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:15,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:15,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:15,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:15,932 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:00:15,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:15,980 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2023-11-19 08:00:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:15,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2023-11-19 08:00:15,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:15,994 INFO L225 Difference]: With dead ends: 89 [2023-11-19 08:00:15,995 INFO L226 Difference]: Without dead ends: 44 [2023-11-19 08:00:16,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:16,004 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:16,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:00:16,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-19 08:00:16,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-19 08:00:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 08:00:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2023-11-19 08:00:16,066 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 91 [2023-11-19 08:00:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:16,067 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2023-11-19 08:00:16,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 08:00:16,068 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2023-11-19 08:00:16,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 08:00:16,077 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:16,078 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] [2023-11-19 08:00:16,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:16,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:16,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:16,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:16,285 INFO L85 PathProgramCache]: Analyzing trace with hash -730463269, now seen corresponding path program 1 times [2023-11-19 08:00:16,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:16,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300377636] [2023-11-19 08:00:16,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:16,287 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 [2023-11-19 08:00:16,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:16,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:00:16,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:16,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:00:16,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 08:00:17,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 08:00:17,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 08:00:17,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300377636] [2023-11-19 08:00:17,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300377636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:17,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:17,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:00:17,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530877008] [2023-11-19 08:00:17,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:17,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 08:00:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:17,230 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-19 08:00:19,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 08:00:19,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:00:19,945 INFO L93 Difference]: Finished difference Result 127 states and 184 transitions. [2023-11-19 08:00:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:19,965 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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 91 [2023-11-19 08:00:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:00:19,968 INFO L225 Difference]: With dead ends: 127 [2023-11-19 08:00:19,968 INFO L226 Difference]: Without dead ends: 86 [2023-11-19 08:00:19,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 08:00:19,972 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 33 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-19 08:00:19,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 199 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-19 08:00:19,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-19 08:00:19,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 73. [2023-11-19 08:00:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2023-11-19 08:00:20,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 105 transitions. [2023-11-19 08:00:20,006 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 105 transitions. Word has length 91 [2023-11-19 08:00:20,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:00:20,008 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 105 transitions. [2023-11-19 08:00:20,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-19 08:00:20,009 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 105 transitions. [2023-11-19 08:00:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 08:00:20,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:20,012 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] [2023-11-19 08:00:20,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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)] Ended with exit code 0 [2023-11-19 08:00:20,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:20,218 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:20,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:20,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1539809895, now seen corresponding path program 1 times [2023-11-19 08:00:20,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 08:00:20,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [604485762] [2023-11-19 08:00:20,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:20,220 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 [2023-11-19 08:00:20,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 08:00:20,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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) [2023-11-19 08:00:20,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd821954-0be3-4c73-b183-a9e4ec95d174/bin/uautomizer-verify-uCwYo4JHxu/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 [2023-11-19 08:00:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:20,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-19 08:00:20,431 INFO L285 TraceCheckSpWp]: Computing forward predicates...