./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.opt.i -s /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12a361253ab3276c8da719ef83f4fabc236ec3e1 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:02:10,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:02:10,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:02:10,235 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:02:10,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:02:10,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:02:10,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:02:10,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:02:10,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:02:10,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:02:10,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:02:10,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:02:10,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:02:10,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:02:10,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:02:10,251 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:02:10,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:02:10,252 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:02:10,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:02:10,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:02:10,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:02:10,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:02:10,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:02:10,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:02:10,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:02:10,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:02:10,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:02:10,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:02:10,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:02:10,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:02:10,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:02:10,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:02:10,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:02:10,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:02:10,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:02:10,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:02:10,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:02:10,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:02:10,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:02:10,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:02:10,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:02:10,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:02:10,282 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:02:10,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:02:10,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:02:10,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:02:10,283 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:02:10,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:02:10,284 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:02:10,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:02:10,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:02:10,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:02:10,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:02:10,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:02:10,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:02:10,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:02:10,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:02:10,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:02:10,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:10,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:02:10,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer 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(__VERIFIER_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 -> 12a361253ab3276c8da719ef83f4fabc236ec3e1 [2019-10-22 09:02:10,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:02:10,327 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:02:10,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:02:10,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:02:10,332 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:02:10,333 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_rmo.opt.i [2019-10-22 09:02:10,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/data/e78c43c28/c9e0bbb824104b98a120daa2ecb624e8/FLAG6fe4e1091 [2019-10-22 09:02:10,822 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:02:10,826 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/sv-benchmarks/c/pthread-wmm/safe036_rmo.opt.i [2019-10-22 09:02:10,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/data/e78c43c28/c9e0bbb824104b98a120daa2ecb624e8/FLAG6fe4e1091 [2019-10-22 09:02:10,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/data/e78c43c28/c9e0bbb824104b98a120daa2ecb624e8 [2019-10-22 09:02:10,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:02:10,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:02:10,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:10,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:02:10,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:02:10,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d9c2b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:10, skipping insertion in model container [2019-10-22 09:02:10,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:02:10" (1/1) ... [2019-10-22 09:02:10,873 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:02:10,916 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:02:11,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:11,299 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:02:11,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:02:11,409 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:02:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11 WrapperNode [2019-10-22 09:02:11,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:02:11,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:11,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:02:11,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:02:11,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:02:11,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:02:11,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:02:11,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:02:11,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... [2019-10-22 09:02:11,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:02:11,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:02:11,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:02:11,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:02:11,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:02:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:02:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-10-22 09:02:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-10-22 09:02:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-10-22 09:02:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:02:11,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:02:11,546 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 09:02:11,931 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:02:11,931 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 09:02:11,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:11 BoogieIcfgContainer [2019-10-22 09:02:11,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:02:11,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:02:11,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:02:11,937 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:02:11,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:02:10" (1/3) ... [2019-10-22 09:02:11,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1d111c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:11, skipping insertion in model container [2019-10-22 09:02:11,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:02:11" (2/3) ... [2019-10-22 09:02:11,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1d111c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:02:11, skipping insertion in model container [2019-10-22 09:02:11,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:11" (3/3) ... [2019-10-22 09:02:11,942 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_rmo.opt.i [2019-10-22 09:02:11,970 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,971 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,971 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,971 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,971 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,971 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,972 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,972 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,972 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,973 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,973 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,973 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,973 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,973 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,974 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 09:02:11,983 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 09:02:11,983 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:02:11,990 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:02:12,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:02:12,017 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:02:12,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:02:12,017 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:02:12,017 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:02:12,017 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:02:12,017 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:02:12,018 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:02:12,018 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:02:12,024 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44 places, 42 transitions [2019-10-22 09:02:12,071 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2019-10-22 09:02:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-22 09:02:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 09:02:12,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:12,089 INFO L380 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] [2019-10-22 09:02:12,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:12,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:12,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1222955299, now seen corresponding path program 1 times [2019-10-22 09:02:12,100 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:12,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602269385] [2019-10-22 09:02:12,101 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,101 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:12,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:12,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602269385] [2019-10-22 09:02:12,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:12,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 09:02:12,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778338471] [2019-10-22 09:02:12,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 09:02:12,371 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:12,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 09:02:12,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 09:02:12,384 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2019-10-22 09:02:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:12,467 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2019-10-22 09:02:12,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:02:12,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-22 09:02:12,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:12,479 INFO L225 Difference]: With dead ends: 444 [2019-10-22 09:02:12,480 INFO L226 Difference]: Without dead ends: 227 [2019-10-22 09:02:12,481 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:12,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2019-10-22 09:02:12,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2019-10-22 09:02:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-10-22 09:02:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2019-10-22 09:02:12,534 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2019-10-22 09:02:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:12,534 INFO L462 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2019-10-22 09:02:12,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 09:02:12,535 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2019-10-22 09:02:12,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 09:02:12,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:12,536 INFO L380 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] [2019-10-22 09:02:12,536 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:12,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:12,537 INFO L82 PathProgramCache]: Analyzing trace with hash -774033433, now seen corresponding path program 1 times [2019-10-22 09:02:12,537 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:12,537 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575898788] [2019-10-22 09:02:12,537 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,538 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:12,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:12,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575898788] [2019-10-22 09:02:12,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:12,648 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 09:02:12,648 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714209882] [2019-10-22 09:02:12,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 09:02:12,650 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:12,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 09:02:12,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 09:02:12,650 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2019-10-22 09:02:12,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:12,700 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2019-10-22 09:02:12,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:02:12,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-10-22 09:02:12,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:12,702 INFO L225 Difference]: With dead ends: 195 [2019-10-22 09:02:12,702 INFO L226 Difference]: Without dead ends: 171 [2019-10-22 09:02:12,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:12,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-10-22 09:02:12,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-10-22 09:02:12,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-10-22 09:02:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2019-10-22 09:02:12,716 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2019-10-22 09:02:12,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:12,716 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2019-10-22 09:02:12,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 09:02:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2019-10-22 09:02:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 09:02:12,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:12,718 INFO L380 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] [2019-10-22 09:02:12,718 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1876335777, now seen corresponding path program 1 times [2019-10-22 09:02:12,718 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:12,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425772177] [2019-10-22 09:02:12,719 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,719 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:12,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:12,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:12,933 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425772177] [2019-10-22 09:02:12,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:12,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:12,933 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495687330] [2019-10-22 09:02:12,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:12,934 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:12,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:12,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:12,935 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 7 states. [2019-10-22 09:02:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:13,087 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2019-10-22 09:02:13,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:13,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-22 09:02:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:13,089 INFO L225 Difference]: With dead ends: 267 [2019-10-22 09:02:13,089 INFO L226 Difference]: Without dead ends: 167 [2019-10-22 09:02:13,089 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:13,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-10-22 09:02:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-10-22 09:02:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-10-22 09:02:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2019-10-22 09:02:13,101 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2019-10-22 09:02:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:13,102 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2019-10-22 09:02:13,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2019-10-22 09:02:13,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-22 09:02:13,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:02:13,104 INFO L380 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] [2019-10-22 09:02:13,104 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:02:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:02:13,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1102474215, now seen corresponding path program 2 times [2019-10-22 09:02:13,104 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:02:13,104 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122396054] [2019-10-22 09:02:13,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:13,105 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:02:13,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:02:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:02:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:02:13,202 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122396054] [2019-10-22 09:02:13,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:02:13,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-22 09:02:13,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696168058] [2019-10-22 09:02:13,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:02:13,203 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:02:13,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:02:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:02:13,204 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 7 states. [2019-10-22 09:02:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:02:13,316 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2019-10-22 09:02:13,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 09:02:13,316 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-10-22 09:02:13,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:02:13,317 INFO L225 Difference]: With dead ends: 135 [2019-10-22 09:02:13,317 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:02:13,317 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-22 09:02:13,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:02:13,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:02:13,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:02:13,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:02:13,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-22 09:02:13,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:02:13,320 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:02:13,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:02:13,320 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:02:13,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:02:13,323 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 09:02:13,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:02:13 BasicIcfg [2019-10-22 09:02:13,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:02:13,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:02:13,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:02:13,326 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:02:13,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:02:11" (3/4) ... [2019-10-22 09:02:13,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:02:13,338 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-10-22 09:02:13,339 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-10-22 09:02:13,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 09:02:13,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 09:02:13,378 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_27392cc8-accf-4955-bc5c-74207a5a6487/bin/uautomizer/witness.graphml [2019-10-22 09:02:13,378 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:02:13,380 INFO L168 Benchmark]: Toolchain (without parser) took 2524.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.0 MB in the beginning and 950.8 MB in the end (delta: -4.9 MB). Peak memory consumption was 135.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:13,380 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:13,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:13,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:13,381 INFO L168 Benchmark]: Boogie Preprocessor took 21.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:02:13,382 INFO L168 Benchmark]: RCFGBuilder took 454.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:13,382 INFO L168 Benchmark]: TraceAbstraction took 1391.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.7 MB in the end (delta: 116.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:13,383 INFO L168 Benchmark]: Witness Printer took 52.80 ms. Allocated memory is still 1.2 GB. Free memory was 957.7 MB in the beginning and 950.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:02:13,385 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 554.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -156.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 454.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1391.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.7 MB in the end (delta: 116.1 MB). Peak memory consumption was 116.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.80 ms. Allocated memory is still 1.2 GB. Free memory was 957.7 MB in the beginning and 950.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 174 SDtfs, 179 SDslu, 431 SDs, 0 SdLazy, 60 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 7261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...