./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.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/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/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 3cea8dfae70bb13e36f583af8b0a84f464ba988d ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:30:22,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:30:22,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:30:22,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:30:22,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:30:22,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:30:22,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:30:22,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:30:22,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:30:22,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:30:22,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:30:22,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:30:22,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:30:22,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:30:22,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:30:22,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:30:22,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:30:22,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:30:22,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:30:22,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:30:22,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:30:22,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:30:22,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:30:22,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:30:22,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:30:22,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:30:22,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:30:22,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:30:22,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:30:22,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:30:22,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:30:22,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:30:22,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:30:22,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:30:22,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:30:22,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:30:22,256 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:30:22,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:30:22,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:30:22,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:30:22,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:30:22,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 21:30:22,283 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:30:22,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:30:22,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:30:22,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:30:22,285 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:30:22,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:30:22,286 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 21:30:22,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:30:22,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 21:30:22,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:30:22,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 21:30:22,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 21:30:22,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 21:30:22,287 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 21:30:22,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:30:22,287 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:30:22,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 21:30:22,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:30:22,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:30:22,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 21:30:22,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 21:30:22,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 21:30:22,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:30:22,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 21:30:22,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 21:30:22,290 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:30:22,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 21:30:22,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 21:30:22,300 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/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/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 -> 3cea8dfae70bb13e36f583af8b0a84f464ba988d [2019-11-15 21:30:22,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:30:22,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:30:22,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:30:22,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:30:22,355 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:30:22,356 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i [2019-11-15 21:30:22,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/data/40db962dc/b6f032f52ed24ef69c996bf778ca1aed/FLAGaf75f1415 [2019-11-15 21:30:22,896 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:30:22,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i [2019-11-15 21:30:22,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/data/40db962dc/b6f032f52ed24ef69c996bf778ca1aed/FLAGaf75f1415 [2019-11-15 21:30:23,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/data/40db962dc/b6f032f52ed24ef69c996bf778ca1aed [2019-11-15 21:30:23,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:30:23,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:30:23,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:30:23,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:30:23,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:30:23,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de3efe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23, skipping insertion in model container [2019-11-15 21:30:23,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,224 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:30:23,262 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:30:23,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:30:23,625 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:30:23,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:30:23,782 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:30:23,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23 WrapperNode [2019-11-15 21:30:23,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:30:23,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:30:23,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:30:23,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:30:23,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:30:23,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:30:23,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:30:23,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:30:23,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... [2019-11-15 21:30:23,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:30:23,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:30:23,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:30:23,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:30:23,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/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 [2019-11-15 21:30:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:30:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 21:30:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:30:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:30:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 21:30:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 21:30:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 21:30:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 21:30:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 21:30:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:30:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:30:23,943 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 21:30:24,286 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:30:24,287 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 21:30:24,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:24 BoogieIcfgContainer [2019-11-15 21:30:24,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:30:24,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 21:30:24,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 21:30:24,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 21:30:24,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 09:30:23" (1/3) ... [2019-11-15 21:30:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f88819e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:30:24, skipping insertion in model container [2019-11-15 21:30:24,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:30:23" (2/3) ... [2019-11-15 21:30:24,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f88819e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 09:30:24, skipping insertion in model container [2019-11-15 21:30:24,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:24" (3/3) ... [2019-11-15 21:30:24,295 INFO L109 eAbstractionObserver]: Analyzing ICFG safe036_rmo.oepc.i [2019-11-15 21:30:24,321 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,322 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,322 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,322 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,323 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,323 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,323 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,323 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,323 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,324 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,324 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,324 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 21:30:24,335 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 21:30:24,336 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 21:30:24,343 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 21:30:24,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 21:30:24,368 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 21:30:24,368 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 21:30:24,368 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 21:30:24,368 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:30:24,368 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:30:24,368 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 21:30:24,368 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:30:24,368 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 21:30:24,376 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 40 transitions [2019-11-15 21:30:24,409 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 286 states. [2019-11-15 21:30:24,411 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2019-11-15 21:30:24,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 21:30:24,421 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:24,422 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] [2019-11-15 21:30:24,423 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:24,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:24,429 INFO L82 PathProgramCache]: Analyzing trace with hash 390631586, now seen corresponding path program 1 times [2019-11-15 21:30:24,436 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:24,437 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623817445] [2019-11-15 21:30:24,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:24,437 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:24,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:24,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623817445] [2019-11-15 21:30:24,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:24,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 21:30:24,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963894814] [2019-11-15 21:30:24,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 21:30:24,727 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:24,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 21:30:24,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 21:30:24,743 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2019-11-15 21:30:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:24,834 INFO L93 Difference]: Finished difference Result 287 states and 646 transitions. [2019-11-15 21:30:24,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 21:30:24,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 21:30:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:24,854 INFO L225 Difference]: With dead ends: 287 [2019-11-15 21:30:24,854 INFO L226 Difference]: Without dead ends: 151 [2019-11-15 21:30:24,856 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 [2019-11-15 21:30:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-15 21:30:24,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-11-15 21:30:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-15 21:30:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 325 transitions. [2019-11-15 21:30:24,934 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 325 transitions. Word has length 25 [2019-11-15 21:30:24,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:24,935 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 325 transitions. [2019-11-15 21:30:24,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 21:30:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 325 transitions. [2019-11-15 21:30:24,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 21:30:24,937 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:24,937 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] [2019-11-15 21:30:24,937 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:24,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:24,938 INFO L82 PathProgramCache]: Analyzing trace with hash 133774966, now seen corresponding path program 1 times [2019-11-15 21:30:24,938 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:24,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357082117] [2019-11-15 21:30:24,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:24,938 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:24,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:24,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:25,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357082117] [2019-11-15 21:30:25,059 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:25,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 21:30:25,059 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714235215] [2019-11-15 21:30:25,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 21:30:25,061 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:25,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 21:30:25,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 21:30:25,061 INFO L87 Difference]: Start difference. First operand 151 states and 325 transitions. Second operand 5 states. [2019-11-15 21:30:25,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:25,120 INFO L93 Difference]: Finished difference Result 124 states and 241 transitions. [2019-11-15 21:30:25,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 21:30:25,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-15 21:30:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:25,122 INFO L225 Difference]: With dead ends: 124 [2019-11-15 21:30:25,122 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 21:30:25,122 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 [2019-11-15 21:30:25,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 21:30:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-15 21:30:25,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-15 21:30:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 213 transitions. [2019-11-15 21:30:25,130 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 213 transitions. Word has length 26 [2019-11-15 21:30:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:25,130 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 213 transitions. [2019-11-15 21:30:25,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 21:30:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 213 transitions. [2019-11-15 21:30:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:30:25,132 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:25,132 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] [2019-11-15 21:30:25,133 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:25,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:25,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1682399059, now seen corresponding path program 1 times [2019-11-15 21:30:25,133 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:25,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333300739] [2019-11-15 21:30:25,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:25,134 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:25,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:25,277 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333300739] [2019-11-15 21:30:25,278 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:25,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:30:25,278 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389840923] [2019-11-15 21:30:25,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:30:25,278 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:25,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:30:25,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:30:25,279 INFO L87 Difference]: Start difference. First operand 109 states and 213 transitions. Second operand 7 states. [2019-11-15 21:30:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:25,555 INFO L93 Difference]: Finished difference Result 163 states and 330 transitions. [2019-11-15 21:30:25,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:30:25,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-15 21:30:25,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:25,563 INFO L225 Difference]: With dead ends: 163 [2019-11-15 21:30:25,564 INFO L226 Difference]: Without dead ends: 94 [2019-11-15 21:30:25,564 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 [2019-11-15 21:30:25,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-15 21:30:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-11-15 21:30:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 21:30:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2019-11-15 21:30:25,571 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 27 [2019-11-15 21:30:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:25,571 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2019-11-15 21:30:25,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:30:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2019-11-15 21:30:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 21:30:25,573 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 21:30:25,573 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] [2019-11-15 21:30:25,574 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 21:30:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:30:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1056606747, now seen corresponding path program 2 times [2019-11-15 21:30:25,574 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:30:25,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069024926] [2019-11-15 21:30:25,575 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:25,575 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:30:25,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:30:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:30:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:30:25,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069024926] [2019-11-15 21:30:25,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:30:25,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 21:30:25,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088338897] [2019-11-15 21:30:25,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 21:30:25,686 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:30:25,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 21:30:25,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 21:30:25,687 INFO L87 Difference]: Start difference. First operand 94 states and 183 transitions. Second operand 7 states. [2019-11-15 21:30:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:30:25,843 INFO L93 Difference]: Finished difference Result 76 states and 141 transitions. [2019-11-15 21:30:25,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 21:30:25,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-11-15 21:30:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 21:30:25,843 INFO L225 Difference]: With dead ends: 76 [2019-11-15 21:30:25,843 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 21:30:25,844 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 [2019-11-15 21:30:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 21:30:25,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 21:30:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 21:30:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 21:30:25,845 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-15 21:30:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 21:30:25,845 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:30:25,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 21:30:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:30:25,845 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 21:30:25,849 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 21:30:25,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 09:30:25 BasicIcfg [2019-11-15 21:30:25,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 21:30:25,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:30:25,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:30:25,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:30:25,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:30:24" (3/4) ... [2019-11-15 21:30:25,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 21:30:25,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 21:30:25,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 21:30:25,866 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 21:30:25,867 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 21:30:25,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8333422d-9ecb-4f20-9762-a0dd7dcf0b1f/bin/uautomizer/witness.graphml [2019-11-15 21:30:25,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:30:25,909 INFO L168 Benchmark]: Toolchain (without parser) took 2699.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 947.4 MB in the beginning and 1.0 GB in the end (delta: -72.5 MB). Peak memory consumption was 127.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,910 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-15 21:30:25,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 947.4 MB in the beginning and 1.2 GB in the end (delta: -218.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:30:25,911 INFO L168 Benchmark]: Boogie Preprocessor took 23.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,912 INFO L168 Benchmark]: RCFGBuilder took 439.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,912 INFO L168 Benchmark]: TraceAbstraction took 1562.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.4 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,913 INFO L168 Benchmark]: Witness Printer took 55.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:30:25,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 572.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 947.4 MB in the beginning and 1.2 GB in the end (delta: -218.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 439.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1562.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 112.4 MB). Peak memory consumption was 112.4 MB. Max. memory is 11.5 GB. * Witness Printer took 55.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.2 MB). Peak memory consumption was 6.2 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, 50 locations, 1 error locations. Result: SAFE, OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 151 SDtfs, 148 SDslu, 385 SDs, 0 SdLazy, 58 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, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred 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, 7001 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...