./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:20:00,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:20:00,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:20:00,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:20:00,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:20:00,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:20:00,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:20:00,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:20:00,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:20:00,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:20:00,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:20:00,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:20:00,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:20:00,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:20:00,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:20:00,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:20:00,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:20:00,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:20:00,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:20:00,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:20:00,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:20:00,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:20:00,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:20:00,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:20:00,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:20:00,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:20:00,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:20:00,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:20:00,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:20:00,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:20:00,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:20:00,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:20:00,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:20:00,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:20:00,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:20:00,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:20:00,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:20:00,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:20:00,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:20:00,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:20:00,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:20:00,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 18:20:00,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:20:00,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:20:00,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:20:00,409 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:20:00,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:20:00,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:20:00,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:20:00,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:20:00,417 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:20:00,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:20:00,418 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:20:00,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:20:00,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:20:00,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:20:00,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:20:00,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:20:00,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:20:00,420 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:20:00,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:20:00,420 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:20:00,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:20:00,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:20:00,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:20:00,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:20:00,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:20:00,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:20:00,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:20:00,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:20:00,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:20:00,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:20:00,424 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:20:00,424 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:20:00,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:20:00,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:20:00,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 [2021-11-13 18:20:00,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:20:00,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:20:00,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:20:00,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:20:00,746 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:20:00,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-13 18:20:00,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/1d2d8d1fd/5945a1b10a304a58ae78a965bfd74ad4/FLAG766d05b3f [2021-11-13 18:20:01,403 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:20:01,404 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-13 18:20:01,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/1d2d8d1fd/5945a1b10a304a58ae78a965bfd74ad4/FLAG766d05b3f [2021-11-13 18:20:01,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/1d2d8d1fd/5945a1b10a304a58ae78a965bfd74ad4 [2021-11-13 18:20:01,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:20:01,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:20:01,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:20:01,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:20:01,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:20:01,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:20:01" (1/1) ... [2021-11-13 18:20:01,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3585ad66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:01, skipping insertion in model container [2021-11-13 18:20:01,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:20:01" (1/1) ... [2021-11-13 18:20:01,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:20:01,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:20:02,045 WARN L228 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_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-13 18:20:02,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:20:02,080 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:20:02,185 WARN L228 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_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-13 18:20:02,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:20:02,231 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:20:02,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02 WrapperNode [2021-11-13 18:20:02,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:20:02,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:20:02,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:20:02,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:20:02,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:20:02,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:20:02,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:20:02,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:20:02,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:20:02,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:20:02,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:20:02,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:20:02,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (1/1) ... [2021-11-13 18:20:02,360 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:20:02,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:20:02,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:20:02,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:20:02,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:20:02,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-13 18:20:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-13 18:20:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-13 18:20:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-13 18:20:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-13 18:20:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-13 18:20:02,468 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-13 18:20:02,468 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-13 18:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-13 18:20:02,469 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-13 18:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 18:20:02,469 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 18:20:02,469 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-13 18:20:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-13 18:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-13 18:20:02,470 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-13 18:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:20:02,470 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-13 18:20:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-13 18:20:02,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:20:02,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:20:03,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:20:03,306 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:20:03,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:20:03 BoogieIcfgContainer [2021-11-13 18:20:03,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:20:03,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:20:03,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:20:03,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:20:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:20:01" (1/3) ... [2021-11-13 18:20:03,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d0628b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:20:03, skipping insertion in model container [2021-11-13 18:20:03,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:02" (2/3) ... [2021-11-13 18:20:03,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d0628b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:20:03, skipping insertion in model container [2021-11-13 18:20:03,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:20:03" (3/3) ... [2021-11-13 18:20:03,324 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-11-13 18:20:03,330 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:20:03,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:20:03,415 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:20:03,429 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:20:03,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:20:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 80 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 18:20:03,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 18:20:03,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:03,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:03,484 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:03,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash -267540016, now seen corresponding path program 1 times [2021-11-13 18:20:03,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:03,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435007217] [2021-11-13 18:20:03,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:03,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:20:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:03,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:03,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435007217] [2021-11-13 18:20:03,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435007217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:03,839 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:03,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 18:20:03,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568084603] [2021-11-13 18:20:03,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:03,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:20:03,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:03,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:20:03,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:20:03,880 INFO L87 Difference]: Start difference. First operand has 98 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 80 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:03,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:03,952 INFO L93 Difference]: Finished difference Result 188 states and 253 transitions. [2021-11-13 18:20:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:20:03,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-13 18:20:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:03,968 INFO L225 Difference]: With dead ends: 188 [2021-11-13 18:20:03,969 INFO L226 Difference]: Without dead ends: 89 [2021-11-13 18:20:03,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:20:03,979 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:03,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 6.78ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:20:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-13 18:20:04,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-13 18:20:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.296875) internal successors, (83), 72 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-13 18:20:04,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-11-13 18:20:04,057 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 25 [2021-11-13 18:20:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:04,057 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-11-13 18:20:04,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2021-11-13 18:20:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 18:20:04,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:04,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:04,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:20:04,066 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -411354841, now seen corresponding path program 1 times [2021-11-13 18:20:04,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:04,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421467004] [2021-11-13 18:20:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:04,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-13 18:20:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:04,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:04,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421467004] [2021-11-13 18:20:04,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421467004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:04,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:04,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:20:04,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646023204] [2021-11-13 18:20:04,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:04,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:20:04,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:04,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:20:04,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:20:04,282 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:04,313 INFO L93 Difference]: Finished difference Result 139 states and 177 transitions. [2021-11-13 18:20:04,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:20:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-13 18:20:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:04,322 INFO L225 Difference]: With dead ends: 139 [2021-11-13 18:20:04,322 INFO L226 Difference]: Without dead ends: 80 [2021-11-13 18:20:04,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:20:04,330 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 17 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.77ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.82ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:04,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 180 Invalid, 1 Unknown, 0 Unchecked, 2.77ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.82ms Time] [2021-11-13 18:20:04,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-13 18:20:04,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-13 18:20:04,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 66 states have internal predecessors, (76), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 18:20:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2021-11-13 18:20:04,352 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 26 [2021-11-13 18:20:04,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:04,352 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2021-11-13 18:20:04,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,354 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2021-11-13 18:20:04,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 18:20:04,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:04,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:04,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:20:04,357 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:04,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:04,363 INFO L85 PathProgramCache]: Analyzing trace with hash -52569705, now seen corresponding path program 1 times [2021-11-13 18:20:04,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:04,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145031157] [2021-11-13 18:20:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:04,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:20:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:04,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:04,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145031157] [2021-11-13 18:20:04,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145031157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:04,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:04,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 18:20:04,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332710073] [2021-11-13 18:20:04,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:04,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 18:20:04,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 18:20:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:20:04,508 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:04,567 INFO L93 Difference]: Finished difference Result 224 states and 291 transitions. [2021-11-13 18:20:04,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:20:04,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-11-13 18:20:04,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:04,573 INFO L225 Difference]: With dead ends: 224 [2021-11-13 18:20:04,574 INFO L226 Difference]: Without dead ends: 151 [2021-11-13 18:20:04,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 18:20:04,579 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 80 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.10ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.31ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:04,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 218 Invalid, 6 Unknown, 0 Unchecked, 5.10ms Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 15.31ms Time] [2021-11-13 18:20:04,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-13 18:20:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2021-11-13 18:20:04,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 105 states have (on average 1.3333333333333333) internal successors, (140), 120 states have internal predecessors, (140), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 17 states have call predecessors, (26), 26 states have call successors, (26) [2021-11-13 18:20:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2021-11-13 18:20:04,637 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 31 [2021-11-13 18:20:04,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:04,638 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2021-11-13 18:20:04,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,639 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2021-11-13 18:20:04,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 18:20:04,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:04,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:04,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:20:04,641 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:04,642 INFO L85 PathProgramCache]: Analyzing trace with hash 488407342, now seen corresponding path program 1 times [2021-11-13 18:20:04,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:04,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927812258] [2021-11-13 18:20:04,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:04,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-13 18:20:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:04,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:20:04,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927812258] [2021-11-13 18:20:04,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927812258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:04,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:04,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:20:04,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596756469] [2021-11-13 18:20:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:04,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:20:04,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:20:04,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:20:04,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:20:04,726 INFO L87 Difference]: Start difference. First operand 148 states and 192 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:04,806 INFO L93 Difference]: Finished difference Result 424 states and 563 transitions. [2021-11-13 18:20:04,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:20:04,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2021-11-13 18:20:04,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:04,816 INFO L225 Difference]: With dead ends: 424 [2021-11-13 18:20:04,817 INFO L226 Difference]: Without dead ends: 283 [2021-11-13 18:20:04,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 18:20:04,828 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 72 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.08ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:04,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 422 Invalid, 27 Unknown, 0 Unchecked, 5.00ms Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 37.08ms Time] [2021-11-13 18:20:04,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-13 18:20:04,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2021-11-13 18:20:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 194 states have (on average 1.3195876288659794) internal successors, (256), 221 states have internal predecessors, (256), 52 states have call successors, (52), 32 states have call predecessors, (52), 30 states have return successors, (54), 32 states have call predecessors, (54), 52 states have call successors, (54) [2021-11-13 18:20:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 362 transitions. [2021-11-13 18:20:04,890 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 362 transitions. Word has length 34 [2021-11-13 18:20:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:04,891 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 362 transitions. [2021-11-13 18:20:04,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-13 18:20:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 362 transitions. [2021-11-13 18:20:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:20:04,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:04,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:04,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:20:04,900 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1555609492, now seen corresponding path program 1 times [2021-11-13 18:20:04,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:20:04,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154488379] [2021-11-13 18:20:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:04,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:20:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:20:05,020 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:20:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:20:05,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:20:05,166 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:20:05,167 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:20:05,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:20:05,175 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-13 18:20:05,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:20:05,248 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:20:05,258 INFO L158 Benchmark]: Toolchain (without parser) took 3557.10ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 85.5MB in the beginning and 90.8MB in the end (delta: -5.3MB). Peak memory consumption was 46.0MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,259 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:20:05,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.98ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 85.2MB in the beginning and 131.8MB in the end (delta: -46.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.88ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 129.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,260 INFO L158 Benchmark]: Boogie Preprocessor took 47.45ms. Allocated memory is still 165.7MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,261 INFO L158 Benchmark]: RCFGBuilder took 958.98ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 133.3MB in the end (delta: -6.0MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,261 INFO L158 Benchmark]: TraceAbstraction took 1943.96ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 90.8MB in the end (delta: 41.7MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2021-11-13 18:20:05,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 115.3MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.98ms. Allocated memory was 115.3MB in the beginning and 165.7MB in the end (delta: 50.3MB). Free memory was 85.2MB in the beginning and 131.8MB in the end (delta: -46.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.88ms. Allocated memory is still 165.7MB. Free memory was 131.8MB in the beginning and 129.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.45ms. Allocated memory is still 165.7MB. Free memory was 129.4MB in the beginning and 127.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 958.98ms. Allocated memory is still 165.7MB. Free memory was 127.3MB in the beginning and 133.3MB in the end (delta: -6.0MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1943.96ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 90.8MB in the end (delta: 41.7MB). Peak memory consumption was 42.3MB. 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 18:20:05,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:20:07,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:20:07,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:20:07,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:20:07,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:20:07,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:20:07,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:20:07,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:20:07,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:20:07,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:20:07,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:20:07,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:20:07,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:20:07,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:20:07,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:20:07,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:20:07,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:20:07,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:20:07,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:20:07,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:20:07,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:20:07,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:20:07,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:20:07,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:20:07,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:20:07,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:20:07,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:20:07,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:20:07,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:20:07,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:20:07,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:20:07,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:20:07,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:20:07,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:20:07,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:20:07,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:20:07,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:20:07,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:20:07,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:20:07,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:20:07,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:20:07,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-13 18:20:07,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:20:07,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:20:07,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:20:07,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:20:07,963 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:20:07,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:20:07,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:20:07,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:20:07,965 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:20:07,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:20:07,967 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:20:07,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:20:07,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:20:07,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:20:07,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:20:07,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:20:07,968 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 18:20:07,968 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 18:20:07,968 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:20:07,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:20:07,969 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:20:07,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:20:07,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:20:07,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:20:07,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:20:07,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:20:07,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:20:07,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:20:07,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:20:07,970 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-13 18:20:07,970 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 18:20:07,971 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:20:07,971 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:20:07,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:20:07,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:20:07,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 18:20:07,972 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe5945de1191725858dff519e245e0ce7f71deac0a58ccc85d416ae53ad1824 [2021-11-13 18:20:08,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:20:08,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:20:08,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:20:08,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:20:08,391 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:20:08,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-13 18:20:08,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/2bff167a5/56519a35e8f044cfa659e93cf956fa64/FLAG4f5f7edb7 [2021-11-13 18:20:09,060 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:20:09,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2021-11-13 18:20:09,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/2bff167a5/56519a35e8f044cfa659e93cf956fa64/FLAG4f5f7edb7 [2021-11-13 18:20:09,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/data/2bff167a5/56519a35e8f044cfa659e93cf956fa64 [2021-11-13 18:20:09,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:20:09,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:20:09,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:20:09,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:20:09,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:20:09,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:20:09" (1/1) ... [2021-11-13 18:20:09,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de8c274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:09, skipping insertion in model container [2021-11-13 18:20:09,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:20:09" (1/1) ... [2021-11-13 18:20:09,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:20:09,512 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:20:09,873 WARN L228 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_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-13 18:20:09,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:20:09,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:20:10,052 WARN L228 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_866c71b3-eac8-47dc-b23f-241a85f40482/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c[15274,15287] [2021-11-13 18:20:10,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:20:10,084 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:20:10,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10 WrapperNode [2021-11-13 18:20:10,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:20:10,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:20:10,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:20:10,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:20:10,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:20:10,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:20:10,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:20:10,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:20:10,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:20:10,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:20:10,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:20:10,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:20:10,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (1/1) ... [2021-11-13 18:20:10,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:20:10,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:20:10,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:20:10,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:20:10,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:20:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-13 18:20:10,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-13 18:20:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-13 18:20:10,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-13 18:20:10,321 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-13 18:20:10,331 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-13 18:20:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-13 18:20:10,331 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-13 18:20:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-13 18:20:10,331 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-13 18:20:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 18:20:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 18:20:10,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-13 18:20:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-13 18:20:10,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-13 18:20:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-13 18:20:10,332 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-13 18:20:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-13 18:20:10,332 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-13 18:20:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:20:10,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:20:12,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:20:12,565 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:20:12,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:20:12 BoogieIcfgContainer [2021-11-13 18:20:12,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:20:12,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:20:12,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:20:12,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:20:12,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:20:09" (1/3) ... [2021-11-13 18:20:12,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e941b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:20:12, skipping insertion in model container [2021-11-13 18:20:12,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:20:10" (2/3) ... [2021-11-13 18:20:12,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e941b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:20:12, skipping insertion in model container [2021-11-13 18:20:12,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:20:12" (3/3) ... [2021-11-13 18:20:12,576 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2021-11-13 18:20:12,581 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:20:12,581 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:20:12,637 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:20:12,644 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 18:20:12,644 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:20:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 80 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-13 18:20:12,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-13 18:20:12,681 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:12,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:12,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:12,688 INFO L85 PathProgramCache]: Analyzing trace with hash -267540016, now seen corresponding path program 1 times [2021-11-13 18:20:12,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:20:12,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996780513] [2021-11-13 18:20:12,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:12,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:20:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:20:12,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:20:12,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 18:20:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:12,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 18:20:12,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:20:13,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:13,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:20:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:13,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:20:13,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996780513] [2021-11-13 18:20:13,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996780513] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:13,129 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:13,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 18:20:13,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888736535] [2021-11-13 18:20:13,132 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:13,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 18:20:13,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:20:13,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 18:20:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:20:13,169 INFO L87 Difference]: Start difference. First operand has 98 states, 71 states have (on average 1.3661971830985915) internal successors, (97), 80 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:13,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:13,206 INFO L93 Difference]: Finished difference Result 188 states and 253 transitions. [2021-11-13 18:20:13,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 18:20:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2021-11-13 18:20:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:13,218 INFO L225 Difference]: With dead ends: 188 [2021-11-13 18:20:13,218 INFO L226 Difference]: Without dead ends: 89 [2021-11-13 18:20:13,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 18:20:13,227 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.93ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:13,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.93ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 18:20:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-13 18:20:13,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-13 18:20:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.296875) internal successors, (83), 72 states have internal predecessors, (83), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-13 18:20:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 114 transitions. [2021-11-13 18:20:13,276 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 114 transitions. Word has length 25 [2021-11-13 18:20:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:13,277 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 114 transitions. [2021-11-13 18:20:13,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:13,278 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2021-11-13 18:20:13,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 18:20:13,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:13,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:13,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:20:13,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:13,494 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:13,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:13,495 INFO L85 PathProgramCache]: Analyzing trace with hash -411354841, now seen corresponding path program 1 times [2021-11-13 18:20:13,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:20:13,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40265704] [2021-11-13 18:20:13,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:13,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:20:13,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:20:13,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:20:13,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 18:20:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:13,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:20:13,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:20:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:13,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:20:13,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:13,845 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:20:13,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40265704] [2021-11-13 18:20:13,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40265704] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:13,846 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:13,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 18:20:13,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005689522] [2021-11-13 18:20:13,847 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:13,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:20:13,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:20:13,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:20:13,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:20:13,850 INFO L87 Difference]: Start difference. First operand 89 states and 114 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:13,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:13,881 INFO L93 Difference]: Finished difference Result 139 states and 177 transitions. [2021-11-13 18:20:13,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:20:13,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2021-11-13 18:20:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:13,884 INFO L225 Difference]: With dead ends: 139 [2021-11-13 18:20:13,884 INFO L226 Difference]: Without dead ends: 80 [2021-11-13 18:20:13,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:20:13,887 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 34 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.49ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.44ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:13,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 180 Invalid, 5 Unknown, 0 Unchecked, 2.49ms Time], IncrementalHoareTripleChecker [4 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 9.44ms Time] [2021-11-13 18:20:13,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-13 18:20:13,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-13 18:20:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 66 states have internal predecessors, (76), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-13 18:20:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 102 transitions. [2021-11-13 18:20:13,901 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 102 transitions. Word has length 26 [2021-11-13 18:20:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:13,902 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 102 transitions. [2021-11-13 18:20:13,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 102 transitions. [2021-11-13 18:20:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-13 18:20:13,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:13,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:13,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 18:20:14,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:14,120 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:14,120 INFO L85 PathProgramCache]: Analyzing trace with hash -52569705, now seen corresponding path program 1 times [2021-11-13 18:20:14,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:20:14,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809594706] [2021-11-13 18:20:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:14,122 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:20:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:20:14,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:20:14,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 18:20:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:14,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:20:14,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:20:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:14,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:20:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:14,534 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:20:14,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809594706] [2021-11-13 18:20:14,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809594706] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:14,534 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:14,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 18:20:14,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273409750] [2021-11-13 18:20:14,535 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:14,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:20:14,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:20:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:20:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:20:14,536 INFO L87 Difference]: Start difference. First operand 80 states and 102 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:14,682 INFO L93 Difference]: Finished difference Result 268 states and 349 transitions. [2021-11-13 18:20:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 18:20:14,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2021-11-13 18:20:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:14,688 INFO L225 Difference]: With dead ends: 268 [2021-11-13 18:20:14,688 INFO L226 Difference]: Without dead ends: 195 [2021-11-13 18:20:14,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:20:14,691 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 159 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.28ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:14,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 301 Invalid, 37 Unknown, 0 Unchecked, 10.28ms Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 92.47ms Time] [2021-11-13 18:20:14,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-13 18:20:14,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 189. [2021-11-13 18:20:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 136 states have (on average 1.3455882352941178) internal successors, (183), 154 states have internal predecessors, (183), 31 states have call successors, (31), 21 states have call predecessors, (31), 21 states have return successors, (32), 21 states have call predecessors, (32), 31 states have call successors, (32) [2021-11-13 18:20:14,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 246 transitions. [2021-11-13 18:20:14,726 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 246 transitions. Word has length 31 [2021-11-13 18:20:14,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:14,727 INFO L470 AbstractCegarLoop]: Abstraction has 189 states and 246 transitions. [2021-11-13 18:20:14,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 18:20:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 246 transitions. [2021-11-13 18:20:14,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 18:20:14,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:14,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:14,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:20:14,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:14,943 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:14,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:14,943 INFO L85 PathProgramCache]: Analyzing trace with hash 488407342, now seen corresponding path program 1 times [2021-11-13 18:20:14,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:20:14,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469876430] [2021-11-13 18:20:14,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:14,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:20:14,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:20:14,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:20:14,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 18:20:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:20:15,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 18:20:15,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:20:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:15,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:20:15,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:20:15,386 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-13 18:20:15,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469876430] [2021-11-13 18:20:15,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469876430] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 18:20:15,387 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:20:15,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2021-11-13 18:20:15,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132174367] [2021-11-13 18:20:15,387 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 18:20:15,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 18:20:15,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-13 18:20:15,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 18:20:15,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 18:20:15,389 INFO L87 Difference]: Start difference. First operand 189 states and 246 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:20:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:20:15,636 INFO L93 Difference]: Finished difference Result 737 states and 1009 transitions. [2021-11-13 18:20:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:20:15,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-13 18:20:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:20:15,645 INFO L225 Difference]: With dead ends: 737 [2021-11-13 18:20:15,645 INFO L226 Difference]: Without dead ends: 555 [2021-11-13 18:20:15,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-13 18:20:15,649 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 155 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 98.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.24ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 128.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:20:15,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 711 Invalid, 89 Unknown, 0 Unchecked, 7.24ms Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 128.47ms Time] [2021-11-13 18:20:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2021-11-13 18:20:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 525. [2021-11-13 18:20:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 371 states have (on average 1.3234501347708896) internal successors, (491), 420 states have internal predecessors, (491), 93 states have call successors, (93), 63 states have call predecessors, (93), 60 states have return successors, (111), 60 states have call predecessors, (111), 93 states have call successors, (111) [2021-11-13 18:20:15,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 695 transitions. [2021-11-13 18:20:15,760 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 695 transitions. Word has length 34 [2021-11-13 18:20:15,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:20:15,763 INFO L470 AbstractCegarLoop]: Abstraction has 525 states and 695 transitions. [2021-11-13 18:20:15,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 18:20:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 695 transitions. [2021-11-13 18:20:15,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-13 18:20:15,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:20:15,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:20:15,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:20:15,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:15,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:20:15,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:20:15,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1555609492, now seen corresponding path program 1 times [2021-11-13 18:20:15,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-13 18:20:15,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1085531756] [2021-11-13 18:20:15,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:20:15,976 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 18:20:15,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat [2021-11-13 18:20:15,978 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 18:20:15,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 18:20:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:20:17,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:20:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:20:18,906 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-13 18:20:18,907 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 18:20:18,908 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 18:20:18,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:20:19,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 [2021-11-13 18:20:19,130 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-13 18:20:19,133 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 18:20:19,197 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-13 18:20:19,199 INFO L158 Benchmark]: Toolchain (without parser) took 9774.22ms. Allocated memory was 56.6MB in the beginning and 88.1MB in the end (delta: 31.5MB). Free memory was 33.4MB in the beginning and 59.8MB in the end (delta: -26.5MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,200 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:20:19,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.75ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.2MB in the beginning and 46.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.69ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 44.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,202 INFO L158 Benchmark]: Boogie Preprocessor took 86.82ms. Allocated memory is still 73.4MB. Free memory was 44.2MB in the beginning and 42.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,202 INFO L158 Benchmark]: RCFGBuilder took 2337.82ms. Allocated memory is still 73.4MB. Free memory was 42.1MB in the beginning and 49.3MB in the end (delta: -7.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,208 INFO L158 Benchmark]: TraceAbstraction took 6629.33ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.5MB in the beginning and 59.8MB in the end (delta: -11.3MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2021-11-13 18:20:19,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.2MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 657.75ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 33.2MB in the beginning and 46.7MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.69ms. Allocated memory is still 73.4MB. Free memory was 46.5MB in the beginning and 44.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.82ms. Allocated memory is still 73.4MB. Free memory was 44.2MB in the beginning and 42.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2337.82ms. Allocated memory is still 73.4MB. Free memory was 42.1MB in the beginning and 49.3MB in the end (delta: -7.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6629.33ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 48.5MB in the beginning and 59.8MB in the end (delta: -11.3MB). Peak memory consumption was 39.3MB. 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 - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-13 18:20:19,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866c71b3-eac8-47dc-b23f-241a85f40482/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null