./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 f1648fbf8a6e9a12fa966e41ca01aa2c551b0fd9acc65986e1ec4cee749b3435 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:20,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:20,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:38:21,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:21,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:21,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:21,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:21,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:21,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:21,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:21,044 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:21,045 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:21,045 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:21,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:21,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:21,048 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:38:21,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:38:21,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:38:21,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:21,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:21,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:21,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:21,051 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:38:21,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:21,052 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:21,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:21,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:21,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:21,054 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:21,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:21,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:21,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:21,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:38:21,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:38:21,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:21,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:21,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:21,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:21,058 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:21,059 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1648fbf8a6e9a12fa966e41ca01aa2c551b0fd9acc65986e1ec4cee749b3435 [2023-11-19 07:38:21,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:21,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:21,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:21,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:21,388 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:21,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:24,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:24,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:24,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:24,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/f96635ebf/b402b42cfb854095927a4a82fc882a2c/FLAGebd4005fa [2023-11-19 07:38:25,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/f96635ebf/b402b42cfb854095927a4a82fc882a2c [2023-11-19 07:38:25,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:25,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:25,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:25,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:25,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:25,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff24105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25, skipping insertion in model container [2023-11-19 07:38:25,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:25,248 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i[912,925] [2023-11-19 07:38:25,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:25,351 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:25,365 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i[912,925] [2023-11-19 07:38:25,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:25,405 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:25,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25 WrapperNode [2023-11-19 07:38:25,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:25,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:25,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:25,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:25,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,426 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,457 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-11-19 07:38:25,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:25,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:25,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:25,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:25,468 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:25,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:25,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:25,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:25,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (1/1) ... [2023-11-19 07:38:25,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:25,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:25,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:25,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:25,593 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:38:25,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:38:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:38:25,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:25,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:25,663 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:25,665 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:26,054 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:38:26,062 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:38:26,063 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:38:26,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:26 BoogieIcfgContainer [2023-11-19 07:38:26,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:38:26,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:38:26,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:38:26,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:38:26,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:25" (1/3) ... [2023-11-19 07:38:26,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61621dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:26, skipping insertion in model container [2023-11-19 07:38:26,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:25" (2/3) ... [2023-11-19 07:38:26,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61621dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:26, skipping insertion in model container [2023-11-19 07:38:26,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:26" (3/3) ... [2023-11-19 07:38:26,078 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:26,098 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:38:26,098 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:38:26,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:38:26,177 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;@d03c70c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:38:26,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:38:26,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:38:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:38:26,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:26,196 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:26,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:26,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash 533118968, now seen corresponding path program 1 times [2023-11-19 07:38:26,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:26,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114560766] [2023-11-19 07:38:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:26,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:38:26,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114560766] [2023-11-19 07:38:26,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:38:26,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894475031] [2023-11-19 07:38:26,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:26,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:26,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:26,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:26,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:38:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:26,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:38:26,583 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-19 07:38:26,645 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:38:26,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894475031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:26,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:26,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:26,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279563207] [2023-11-19 07:38:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:26,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:38:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:38:26,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:38:26,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:38:26,702 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:38:26,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:26,746 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2023-11-19 07:38:26,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:38:26,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2023-11-19 07:38:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:26,758 INFO L225 Difference]: With dead ends: 83 [2023-11-19 07:38:26,760 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 07:38:26,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 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 07:38:26,770 INFO L413 NwaCegarLoop]: 58 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, 58 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 07:38:26,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:38:26,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 07:38:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 07:38:26,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:38:26,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2023-11-19 07:38:26,830 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 79 [2023-11-19 07:38:26,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:26,831 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2023-11-19 07:38:26,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:38:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-11-19 07:38:26,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:38:26,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:26,840 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:26,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:27,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:38:27,056 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:27,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1417074868, now seen corresponding path program 1 times [2023-11-19 07:38:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:38:27,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365653483] [2023-11-19 07:38:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:38:27,107 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:38:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206183124] [2023-11-19 07:38:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:27,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:27,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:27,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:38:27,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:38:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:38:27,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:38:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:38:27,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:38:27,363 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:38:27,367 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:38:27,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:38:27,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:38:27,585 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:38:27,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:38:27,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:27 BoogieIcfgContainer [2023-11-19 07:38:27,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:38:27,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:38:27,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:38:27,653 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:38:27,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:26" (3/4) ... [2023-11-19 07:38:27,655 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:38:27,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:38:27,657 INFO L158 Benchmark]: Toolchain (without parser) took 2634.32ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 82.6MB in the beginning and 139.7MB in the end (delta: -57.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:27,658 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:27,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.38ms. Allocated memory is still 127.9MB. Free memory was 82.6MB in the beginning and 70.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:38:27,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.81ms. Allocated memory is still 127.9MB. Free memory was 70.2MB in the beginning and 67.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:27,660 INFO L158 Benchmark]: Boogie Preprocessor took 35.88ms. Allocated memory is still 127.9MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:38:27,660 INFO L158 Benchmark]: RCFGBuilder took 572.30ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 66.0MB in the beginning and 138.5MB in the end (delta: -72.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-19 07:38:27,661 INFO L158 Benchmark]: TraceAbstraction took 1581.68ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 139.7MB in the end (delta: -1.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-19 07:38:27,661 INFO L158 Benchmark]: Witness Printer took 4.29ms. Allocated memory is still 174.1MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:38:27,665 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.38ms. Allocated memory is still 127.9MB. Free memory was 82.6MB in the beginning and 70.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.81ms. Allocated memory is still 127.9MB. Free memory was 70.2MB in the beginning and 67.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.88ms. Allocated memory is still 127.9MB. Free memory was 67.6MB in the beginning and 66.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 572.30ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 66.0MB in the beginning and 138.5MB in the end (delta: -72.5MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1581.68ms. Allocated memory is still 174.1MB. Free memory was 137.8MB in the beginning and 139.7MB in the end (delta: -1.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Witness Printer took 4.29ms. Allocated memory is still 174.1MB. Free memory is still 139.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 93. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] float var_1_3 = 8.2; [L24] float var_1_4 = 100000000000.4; [L25] unsigned char var_1_6 = 4; [L26] double var_1_7 = 0.2; [L27] unsigned char var_1_8 = 0; [L28] unsigned short int var_1_9 = 32; [L29] unsigned char var_1_10 = 1; [L30] double var_1_11 = 127.5; [L31] unsigned long int var_1_12 = 5; [L32] double last_1_var_1_7 = 0.2; [L33] unsigned long int last_1_var_1_12 = 5; VAL [isInitial=0, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_3=41/5, var_1_4=500000000002/5, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L97] isInitial = 1 [L98] FCALL initially() [L99] COND TRUE 1 [L100] CALL updateLastVariables() [L89] last_1_var_1_7 = var_1_7 [L90] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_3=41/5, var_1_4=500000000002/5, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L100] RET updateLastVariables() [L101] CALL updateVariables() [L68] var_1_3 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=500000000002/5, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=500000000002/5, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L69] RET assume_abort_if_not((var_1_3 >= 0.0F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=500000000002/5, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L70] var_1_4 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L71] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=4, var_1_7=1/5, var_1_8=0, var_1_9=32] [L72] var_1_6 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L73] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L74] CALL assume_abort_if_not(var_1_6 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L74] RET assume_abort_if_not(var_1_6 <= 254) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L75] var_1_8 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L77] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L77] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=32] [L78] var_1_9 = __VERIFIER_nondet_ushort() [L79] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L79] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L80] CALL assume_abort_if_not(var_1_9 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L80] RET assume_abort_if_not(var_1_9 <= 65535) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L81] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L81] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L82] var_1_10 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L83] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L84] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L84] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=255/2, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L85] var_1_11 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L86] RET assume_abort_if_not((var_1_11 >= -922337.2036854765600e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854765600e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L101] RET updateVariables() [L102] CALL step() [L37] COND FALSE !(! (last_1_var_1_7 <= (var_1_3 - var_1_4))) [L44] var_1_1 = var_1_6 VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=1/5, var_1_8=0, var_1_9=2] [L46] COND FALSE !(var_1_8 || ((var_1_6 / var_1_9) >= var_1_1)) [L53] var_1_7 = var_1_11 VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=5, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=3, var_1_8=0, var_1_9=2] [L55] COND FALSE !(\read(var_1_8)) [L64] var_1_12 = var_1_6 VAL [isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=1, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=3, var_1_8=0, var_1_9=2] [L102] RET step() [L103] CALL, EXPR property() [L93-L94] return (((! (last_1_var_1_7 <= (var_1_3 - var_1_4))) ? ((-1 < last_1_var_1_12) ? (var_1_1 == ((unsigned char) var_1_6)) : (var_1_1 == ((unsigned char) var_1_6))) : (var_1_1 == ((unsigned char) var_1_6))) && ((var_1_8 || ((var_1_6 / var_1_9) >= var_1_1)) ? ((var_1_8 && var_1_10) ? (var_1_7 == ((double) var_1_11)) : (var_1_7 == ((double) var_1_11))) : (var_1_7 == ((double) var_1_11)))) && (var_1_8 ? ((var_1_10 && (var_1_4 <= var_1_7)) ? ((((((var_1_4) > (var_1_11)) ? (var_1_4) : (var_1_11))) > var_1_7) ? (var_1_12 == ((unsigned long int) ((((((3725801564u - var_1_6) - var_1_1)) > (var_1_9)) ? (((3725801564u - var_1_6) - var_1_1)) : (var_1_9))))) : (var_1_12 == ((unsigned long int) var_1_6))) : 1) : (var_1_12 == ((unsigned long int) var_1_6))) ; VAL [\result=0, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=1, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=3, var_1_8=0, var_1_9=2] [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=1, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=3, var_1_8=0, var_1_9=2] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_12=5, last_1_var_1_7=1/5, var_1_10=1, var_1_11=3, var_1_12=1, var_1_1=1, var_1_4=2, var_1_6=1, var_1_7=3, var_1_8=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 58 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 264/264 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 07:38:27,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 f1648fbf8a6e9a12fa966e41ca01aa2c551b0fd9acc65986e1ec4cee749b3435 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:38:30,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:38:30,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-19 07:38:30,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:38:30,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:38:30,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:38:30,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:38:30,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:38:30,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:38:30,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:38:30,557 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:38:30,558 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:38:30,558 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:38:30,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:38:30,560 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:38:30,561 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:38:30,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:38:30,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:38:30,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:38:30,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:38:30,564 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:38:30,564 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:38:30,565 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:38:30,565 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:38:30,566 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:38:30,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:38:30,567 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:38:30,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:38:30,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:38:30,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:38:30,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:30,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:38:30,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:38:30,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:38:30,570 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:38:30,571 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:38:30,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:38:30,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:38:30,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:38:30,572 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:38:30,572 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:38:30,573 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:38:30,573 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1648fbf8a6e9a12fa966e41ca01aa2c551b0fd9acc65986e1ec4cee749b3435 [2023-11-19 07:38:30,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:38:30,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:38:30,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:38:30,971 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:38:30,972 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:38:30,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:34,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:38:34,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:38:34,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:34,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/fe6a73d90/5fb8cf00cec5405293d87060f3bcd879/FLAG8fede1d06 [2023-11-19 07:38:34,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/data/fe6a73d90/5fb8cf00cec5405293d87060f3bcd879 [2023-11-19 07:38:34,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:38:34,596 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:38:34,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:34,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:38:34,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:38:34,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:34" (1/1) ... [2023-11-19 07:38:34,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cd7a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:34, skipping insertion in model container [2023-11-19 07:38:34,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:34" (1/1) ... [2023-11-19 07:38:34,654 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:38:34,861 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i[912,925] [2023-11-19 07:38:34,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:34,957 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:38:34,972 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_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-7.i[912,925] [2023-11-19 07:38:34,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:38:35,010 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:38:35,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35 WrapperNode [2023-11-19 07:38:35,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:38:35,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:35,013 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:38:35,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:38:35,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,048 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,094 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 97 [2023-11-19 07:38:35,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:38:35,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:38:35,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:38:35,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:38:35,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:38:35,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:38:35,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:38:35,165 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:38:35,166 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (1/1) ... [2023-11-19 07:38:35,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:38:35,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:38:35,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:38:35,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:38:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:38:35,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:38:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:38:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:38:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:38:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:38:35,371 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:38:35,373 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:38:37,320 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:38:37,328 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:38:37,328 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:38:37,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:37 BoogieIcfgContainer [2023-11-19 07:38:37,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:38:37,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:38:37,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:38:37,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:38:37,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:34" (1/3) ... [2023-11-19 07:38:37,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2970716e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:37, skipping insertion in model container [2023-11-19 07:38:37,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:35" (2/3) ... [2023-11-19 07:38:37,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2970716e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:37, skipping insertion in model container [2023-11-19 07:38:37,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:37" (3/3) ... [2023-11-19 07:38:37,342 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-7.i [2023-11-19 07:38:37,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:38:37,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:38:37,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:38:37,427 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;@54a4a22c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:38:37,428 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:38:37,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:38:37,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:38:37,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:37,448 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:37,451 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:37,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:37,462 INFO L85 PathProgramCache]: Analyzing trace with hash 533118968, now seen corresponding path program 1 times [2023-11-19 07:38:37,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:38:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474468467] [2023-11-19 07:38:37,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:37,478 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 07:38:37,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:38:37,481 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:37,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:37,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:38:37,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:38:37,940 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-11-19 07:38:37,940 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:38:37,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:38:37,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474468467] [2023-11-19 07:38:37,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474468467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:38:37,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:38:37,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:38:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343877443] [2023-11-19 07:38:37,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:38:37,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:38:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:38:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:38:38,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:38:38,017 INFO L87 Difference]: Start difference. First operand has 45 states, 30 states have (on average 1.4) internal successors, (42), 31 states have internal predecessors, (42), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:38:38,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:38:38,067 INFO L93 Difference]: Finished difference Result 83 states and 138 transitions. [2023-11-19 07:38:38,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:38:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 79 [2023-11-19 07:38:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:38:38,080 INFO L225 Difference]: With dead ends: 83 [2023-11-19 07:38:38,080 INFO L226 Difference]: Without dead ends: 41 [2023-11-19 07:38:38,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 78 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 07:38:38,090 INFO L413 NwaCegarLoop]: 58 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, 58 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 07:38:38,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:38:38,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-19 07:38:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-19 07:38:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 07:38:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2023-11-19 07:38:38,136 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 79 [2023-11-19 07:38:38,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:38:38,137 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2023-11-19 07:38:38,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 07:38:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-11-19 07:38:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:38:38,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:38:38,142 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:38:38,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:38,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:38,352 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:38:38,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:38:38,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1417074868, now seen corresponding path program 1 times [2023-11-19 07:38:38,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:38:38,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374100281] [2023-11-19 07:38:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:38:38,354 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 07:38:38,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:38:38,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:38,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:38:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:38:38,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:38:38,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-11-19 07:39:03,980 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:03,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374100281] [2023-11-19 07:39:03,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374100281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:03,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:03,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 07:39:03,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445017271] [2023-11-19 07:39:03,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:03,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:39:03,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:39:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:39:03,987 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:05,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 07:39:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:12,643 INFO L93 Difference]: Finished difference Result 135 states and 189 transitions. [2023-11-19 07:39:12,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-19 07:39:12,650 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 79 [2023-11-19 07:39:12,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:12,653 INFO L225 Difference]: With dead ends: 135 [2023-11-19 07:39:12,653 INFO L226 Difference]: Without dead ends: 97 [2023-11-19 07:39:12,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2023-11-19 07:39:12,656 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:12,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 236 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-19 07:39:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-11-19 07:39:12,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2023-11-19 07:39:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 40 states have (on average 1.175) internal successors, (47), 41 states have internal predecessors, (47), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 07:39:12,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2023-11-19 07:39:12,681 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 79 [2023-11-19 07:39:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:12,682 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2023-11-19 07:39:12,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-11-19 07:39:12,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:39:12,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:12,685 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:12,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:12,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:39:12,888 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:12,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1809173135, now seen corresponding path program 1 times [2023-11-19 07:39:12,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:12,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970534373] [2023-11-19 07:39:12,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:12,893 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 07:39:12,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:12,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:39:12,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:39:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:13,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:39:13,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-19 07:39:13,183 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:13,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:39:13,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970534373] [2023-11-19 07:39:13,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970534373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:13,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:13,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:13,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302946319] [2023-11-19 07:39:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:13,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:13,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:39:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:13,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:13,187 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:13,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:13,481 INFO L93 Difference]: Finished difference Result 132 states and 167 transitions. [2023-11-19 07:39:13,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:13,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 80 [2023-11-19 07:39:13,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:13,485 INFO L225 Difference]: With dead ends: 132 [2023-11-19 07:39:13,485 INFO L226 Difference]: Without dead ends: 82 [2023-11-19 07:39:13,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:13,488 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 26 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:13,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 121 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:39:13,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-11-19 07:39:13,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2023-11-19 07:39:13,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 57 states have internal predecessors, (63), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-19 07:39:13,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 99 transitions. [2023-11-19 07:39:13,508 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 99 transitions. Word has length 80 [2023-11-19 07:39:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:13,509 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 99 transitions. [2023-11-19 07:39:13,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-11-19 07:39:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 99 transitions. [2023-11-19 07:39:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:39:13,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:13,511 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:13,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:39:13,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:39:13,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:13,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:13,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1866431437, now seen corresponding path program 1 times [2023-11-19 07:39:13,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:39:13,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280144742] [2023-11-19 07:39:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:13,723 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 07:39:13,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:39:13,725 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 07:39:13,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ceb16599-bf7a-4b5d-b65c-ce809fdc8a18/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 (5)] Waiting until timeout for monitored process [2023-11-19 07:39:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:13,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:39:13,956 INFO L285 TraceCheckSpWp]: Computing forward predicates...