./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:00,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:00,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:35:00,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:00,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:00,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:00,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:00,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:00,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:00,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:00,702 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:00,703 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:00,704 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:00,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:00,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:00,706 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:00,707 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:00,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:00,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:00,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:00,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:00,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:00,731 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:00,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:00,732 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:00,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:00,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:00,734 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:00,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:00,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:00,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:00,738 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:00,738 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:00,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:00,739 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:00,739 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:00,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:00,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:00,741 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:00,741 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 [2023-11-19 07:35:01,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:01,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:01,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:01,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:01,210 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:01,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:04,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:04,874 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:04,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:04,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/f27af16d4/bef3da8e5948456da4bf4fc48a7ea32f/FLAG3499a87b0 [2023-11-19 07:35:04,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/f27af16d4/bef3da8e5948456da4bf4fc48a7ea32f [2023-11-19 07:35:04,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:04,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:04,940 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:04,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:04,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:04,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747d61e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:04, skipping insertion in model container [2023-11-19 07:35:04,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:04" (1/1) ... [2023-11-19 07:35:04,984 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:05,170 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 07:35:05,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:05,251 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:05,266 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 07:35:05,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:05,311 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:05,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05 WrapperNode [2023-11-19 07:35:05,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:05,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:05,313 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:05,313 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:05,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,391 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 07:35:05,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:05,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:05,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:05,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:05,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,431 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,436 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:05,437 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:05,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:05,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:05,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (1/1) ... [2023-11-19 07:35:05,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:05,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:05,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:05,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:35:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:35:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:05,667 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:05,669 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:05,991 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:06,002 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:06,003 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:35:06,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:06 BoogieIcfgContainer [2023-11-19 07:35:06,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:06,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:06,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:06,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:06,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:04" (1/3) ... [2023-11-19 07:35:06,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6969eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:06, skipping insertion in model container [2023-11-19 07:35:06,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:05" (2/3) ... [2023-11-19 07:35:06,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6969eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:06, skipping insertion in model container [2023-11-19 07:35:06,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:06" (3/3) ... [2023-11-19 07:35:06,021 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:06,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:06,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:35:06,107 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:06,116 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;@59180bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:06,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:35:06,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:35:06,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 07:35:06,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:06,142 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:06,143 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:35:06,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1578368991, now seen corresponding path program 1 times [2023-11-19 07:35:06,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:06,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044752707] [2023-11-19 07:35:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:06,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-19 07:35:08,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-19 07:35:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:35:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:35:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-19 07:35:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-19 07:35:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-19 07:35:08,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:35:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 07:35:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-19 07:35:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-19 07:35:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-19 07:35:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-19 07:35:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-19 07:35:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:35:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:35:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-11-19 07:35:08,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:08,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044752707] [2023-11-19 07:35:08,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044752707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:08,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:08,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:35:08,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209290877] [2023-11-19 07:35:08,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:08,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:35:08,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:08,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:35:08,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:35:08,507 INFO L87 Difference]: Start difference. First operand has 54 states, 35 states have (on average 1.3428571428571427) internal successors, (47), 36 states have internal predecessors, (47), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:35:09,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:09,373 INFO L93 Difference]: Finished difference Result 119 states and 196 transitions. [2023-11-19 07:35:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:35:09,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2023-11-19 07:35:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:09,391 INFO L225 Difference]: With dead ends: 119 [2023-11-19 07:35:09,392 INFO L226 Difference]: Without dead ends: 68 [2023-11-19 07:35:09,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:35:09,408 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 44 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:09,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 206 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:35:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-11-19 07:35:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 56. [2023-11-19 07:35:09,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 38 states have internal predecessors, (49), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:35:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2023-11-19 07:35:09,471 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 104 [2023-11-19 07:35:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:09,473 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2023-11-19 07:35:09,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-19 07:35:09,474 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2023-11-19 07:35:09,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:35:09,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:09,478 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:09,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:35:09,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:35:09,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:09,480 INFO L85 PathProgramCache]: Analyzing trace with hash 4844460, now seen corresponding path program 1 times [2023-11-19 07:35:09,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:09,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665907509] [2023-11-19 07:35:09,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:09,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:35:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:35:09,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:35:09,717 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:35:09,719 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:35:09,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:35:09,726 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:35:09,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:35:09,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-19 07:35:09,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 07:35:09,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:09 BoogieIcfgContainer [2023-11-19 07:35:09,852 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:35:09,853 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:35:09,853 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:35:09,854 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:35:09,854 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:06" (3/4) ... [2023-11-19 07:35:09,857 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:35:09,858 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:35:09,860 INFO L158 Benchmark]: Toolchain (without parser) took 4921.14ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 159.3MB in the beginning and 180.5MB in the end (delta: -21.2MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,862 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:09,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.87ms. Allocated memory is still 186.6MB. Free memory was 159.1MB in the beginning and 149.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.89ms. Allocated memory is still 186.6MB. Free memory was 149.9MB in the beginning and 147.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,871 INFO L158 Benchmark]: Boogie Preprocessor took 38.91ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 146.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,871 INFO L158 Benchmark]: RCFGBuilder took 570.68ms. Allocated memory is still 186.6MB. Free memory was 146.6MB in the beginning and 142.7MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:35:09,872 INFO L158 Benchmark]: TraceAbstraction took 3841.10ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 141.6MB in the beginning and 180.5MB in the end (delta: -38.9MB). Peak memory consumption was 901.6kB. Max. memory is 16.1GB. [2023-11-19 07:35:09,872 INFO L158 Benchmark]: Witness Printer took 5.44ms. Allocated memory is still 224.4MB. Free memory is still 180.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:35:09,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.87ms. Allocated memory is still 186.6MB. Free memory was 159.1MB in the beginning and 149.9MB in the end (delta: 9.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.89ms. Allocated memory is still 186.6MB. Free memory was 149.9MB in the beginning and 147.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.91ms. Allocated memory is still 186.6MB. Free memory was 147.7MB in the beginning and 146.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.68ms. Allocated memory is still 186.6MB. Free memory was 146.6MB in the beginning and 142.7MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3841.10ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 141.6MB in the beginning and 180.5MB in the end (delta: -38.9MB). Peak memory consumption was 901.6kB. Max. memory is 16.1GB. * Witness Printer took 5.44ms. Allocated memory is still 224.4MB. Free memory is still 180.5MB. 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~short15 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 89. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -5; [L23] signed short int var_1_2 = 0; [L24] signed short int var_1_3 = 1000; [L25] signed short int var_1_4 = 10; [L26] signed short int var_1_5 = 32; [L27] signed long int var_1_6 = 5; [L28] float var_1_7 = 1.1; [L29] float var_1_8 = 7.8; [L30] float var_1_9 = 1.75; [L31] signed long int var_1_10 = 32; [L32] unsigned char var_1_11 = 64; [L33] signed long int var_1_12 = 1230482582; VAL [isInitial=0, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L93] isInitial = 1 [L94] FCALL initially() [L95] COND TRUE 1 [L96] FCALL updateLastVariables() [L97] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_short() [L61] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L61] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L62] CALL assume_abort_if_not(var_1_2 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L62] RET assume_abort_if_not(var_1_2 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1000, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L63] var_1_3 = __VERIFIER_nondet_short() [L64] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L64] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L65] CALL assume_abort_if_not(var_1_3 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L65] RET assume_abort_if_not(var_1_3 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=10, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L66] var_1_4 = __VERIFIER_nondet_short() [L67] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L67] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L68] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L68] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=32, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L69] var_1_5 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L71] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L71] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=11/10, var_1_8=39/5, var_1_9=7/4] [L72] var_1_7 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=39/5, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=39/5, var_1_9=7/4] [L73] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=39/5, var_1_9=7/4] [L74] var_1_8 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=7/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=7/4] [L75] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=7/4] [L76] var_1_9 = __VERIFIER_nondet_float() [L77] CALL assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L77] RET assume_abort_if_not((var_1_9 >= -922337.2036854776000e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854776000e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=32, var_1_11=64, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L80] CALL assume_abort_if_not(var_1_11 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L80] RET assume_abort_if_not(var_1_11 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L81] CALL assume_abort_if_not(var_1_11 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L81] RET assume_abort_if_not(var_1_11 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=1230482582, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L82] var_1_12 = __VERIFIER_nondet_long() [L83] CALL assume_abort_if_not(var_1_12 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L83] RET assume_abort_if_not(var_1_12 >= 1073741823) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L84] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L84] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=-5, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L97] RET updateVariables() [L98] CALL step() [L37] var_1_1 = ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L38] COND TRUE var_1_2 >= var_1_1 VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=5, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L39] COND FALSE !(((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) [L42] var_1_6 = var_1_1 VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L47] EXPR var_1_4 << var_1_2 VAL [isInitial=1, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L47] signed long int stepLocal_1 = var_1_6 + (var_1_4 << var_1_2); [L48] signed long int stepLocal_0 = var_1_2 - (var_1_12 - var_1_5); VAL [isInitial=1, stepLocal_0=-2147483632, stepLocal_1=15, var_1_10=32, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L49] COND FALSE !(stepLocal_1 != var_1_5) [L56] var_1_10 = var_1_2 VAL [isInitial=1, stepLocal_0=-2147483632, stepLocal_1=15, var_1_10=0, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L98] RET step() [L99] CALL, EXPR property() [L89] EXPR ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) VAL [isInitial=1, var_1_10=0, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L89-L90] return ((var_1_1 == ((signed short int) ((((((16) > (4)) ? (16) : (4))) + var_1_2) - (var_1_3 + ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) && ((var_1_2 >= var_1_1) ? ((((((var_1_7 + var_1_8) < 0 ) ? -(var_1_7 + var_1_8) : (var_1_7 + var_1_8))) < var_1_9) ? (var_1_6 == ((signed long int) var_1_3)) : (var_1_6 == ((signed long int) var_1_1))) : (var_1_6 == ((signed long int) var_1_4)))) && (((var_1_6 + (var_1_4 << var_1_2)) != var_1_5) ? (((var_1_3 / var_1_11) < (var_1_2 - (var_1_12 - var_1_5))) ? (var_1_10 == ((signed long int) ((((-256) < (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2)))))))) ? (-256) : (((((var_1_4) < (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))) ? (var_1_4) : (((((var_1_5) > (var_1_2)) ? (var_1_5) : (var_1_2))))))))))) : (var_1_10 == ((signed long int) var_1_4))) : (var_1_10 == ((signed long int) var_1_2))) ; [L99] RET, EXPR property() [L99] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=0, var_1_11=1, var_1_12=2147483647, var_1_1=0, var_1_2=0, var_1_3=1, var_1_4=15, var_1_5=15, var_1_6=0, var_1_7=2147483654, var_1_8=2147483652, var_1_9=2147483653] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 2, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 206 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 66 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=1, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 2119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 480/480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 07:35:09,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:13,014 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:13,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:35:13,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:13,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:13,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:13,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:13,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:13,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:13,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:13,247 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:13,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:13,248 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:13,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:13,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:13,253 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:13,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:13,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:13,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:13,256 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:13,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:13,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:35:13,259 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:35:13,259 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:35:13,260 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:13,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:13,261 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:13,262 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:13,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:13,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:13,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:13,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:13,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:13,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:13,267 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:35:13,267 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:35:13,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:13,268 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:13,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:13,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:13,271 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:35:13,271 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:13,271 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d39645531c2e289d9f43a5da1a6328789e313cb06da9f811e7841e4f10030f5 [2023-11-19 07:35:13,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:13,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:13,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:13,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:13,785 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:13,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:16,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:17,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:17,307 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:17,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/66fd82107/5e520e02d28c4591b6f42770e6e339a7/FLAG4780a5ec9 [2023-11-19 07:35:17,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/data/66fd82107/5e520e02d28c4591b6f42770e6e339a7 [2023-11-19 07:35:17,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:17,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:17,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:17,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:17,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:17,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fdb316a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17, skipping insertion in model container [2023-11-19 07:35:17,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:17,621 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 07:35:17,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:17,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:17,766 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_ada68309-1c3e-4b6c-8167-29ebe50e2cec/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-39.i[913,926] [2023-11-19 07:35:17,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:17,849 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:17,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17 WrapperNode [2023-11-19 07:35:17,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:17,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:17,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:17,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:17,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,938 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 102 [2023-11-19 07:35:17,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:17,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:17,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:17,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:17,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:17,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:18,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:18,005 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:18,006 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:18,006 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:18,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:18,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (1/1) ... [2023-11-19 07:35:18,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:18,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:18,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:18,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:35:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:35:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:35:18,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:18,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:18,222 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:18,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:19,074 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:19,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:19,085 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:35:19,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:19 BoogieIcfgContainer [2023-11-19 07:35:19,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:19,095 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:19,095 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:19,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:19,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:17" (1/3) ... [2023-11-19 07:35:19,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49db8b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:19, skipping insertion in model container [2023-11-19 07:35:19,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:17" (2/3) ... [2023-11-19 07:35:19,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49db8b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:19, skipping insertion in model container [2023-11-19 07:35:19,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:19" (3/3) ... [2023-11-19 07:35:19,104 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-39.i [2023-11-19 07:35:19,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:19,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:35:19,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:19,209 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;@7b6c8890, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:19,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:35:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:35:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:35:19,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:19,234 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:19,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:35:19,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:19,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1678023097, now seen corresponding path program 1 times [2023-11-19 07:35:19,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:35:19,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668858027] [2023-11-19 07:35:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:19,266 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 07:35:19,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:35:19,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:19,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:19,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:35:19,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:35:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2023-11-19 07:35:19,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:35:19,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:35:19,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668858027] [2023-11-19 07:35:19,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668858027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:19,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:19,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:35:19,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631073334] [2023-11-19 07:35:19,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:19,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:35:19,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:35:19,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:35:19,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:35:19,855 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:35:19,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:35:19,895 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2023-11-19 07:35:19,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:35:19,900 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2023-11-19 07:35:19,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:35:19,913 INFO L225 Difference]: With dead ends: 91 [2023-11-19 07:35:19,913 INFO L226 Difference]: Without dead ends: 45 [2023-11-19 07:35:19,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:35:19,926 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:35:19,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:35:19,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-19 07:35:19,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-19 07:35:19,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-19 07:35:19,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2023-11-19 07:35:19,989 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 101 [2023-11-19 07:35:19,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:35:19,990 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2023-11-19 07:35:19,990 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-19 07:35:19,991 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2023-11-19 07:35:19,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 07:35:19,996 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:35:19,997 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:35:20,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:20,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:20,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:35:20,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:20,208 INFO L85 PathProgramCache]: Analyzing trace with hash 852212145, now seen corresponding path program 1 times [2023-11-19 07:35:20,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:35:20,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048996974] [2023-11-19 07:35:20,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:20,210 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 07:35:20,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:35:20,213 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:20,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ada68309-1c3e-4b6c-8167-29ebe50e2cec/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 07:35:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:20,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:35:20,627 INFO L285 TraceCheckSpWp]: Computing forward predicates...