./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/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 e6ac324937dcb830ded2162c28c92a3a84b747b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:47:37,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:47:37,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:47:37,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:47:37,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:47:37,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:47:37,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:47:37,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:47:37,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:47:37,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:47:37,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:47:37,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:47:37,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:47:37,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:47:37,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:47:37,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:47:37,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:47:37,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:47:37,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:47:37,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:47:37,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:47:37,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:47:37,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:47:37,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:47:37,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:47:37,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:47:37,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:47:37,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:47:37,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:47:37,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:47:37,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:47:37,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:47:37,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:47:37,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:47:37,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:47:37,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:47:37,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:47:37,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:47:37,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:47:37,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:47:37,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:47:37,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:47:37,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:47:37,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:47:37,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:47:37,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:47:37,225 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:47:37,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:47:37,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:47:37,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:47:37,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:47:37,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:47:37,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:47:37,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:47:37,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:47:37,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:47:37,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:47:37,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:47:37,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:47:37,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:47:37,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:47:37,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:47:37,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:47:37,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:47:37,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:47:37,233 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_217bf802-4ee8-48d6-877d-f406d9d079cb/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 -> e6ac324937dcb830ded2162c28c92a3a84b747b3 [2019-11-25 08:47:37,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:47:37,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:47:37,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:47:37,414 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:47:37,414 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:47:37,415 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-11-25 08:47:37,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/data/405399884/d685ceecee7d4a1d98b1b947a391cb32/FLAG8c5495da3 [2019-11-25 08:47:37,943 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:47:37,944 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/sv-benchmarks/c/pthread-wmm/safe011_tso.opt.i [2019-11-25 08:47:37,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/data/405399884/d685ceecee7d4a1d98b1b947a391cb32/FLAG8c5495da3 [2019-11-25 08:47:38,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/data/405399884/d685ceecee7d4a1d98b1b947a391cb32 [2019-11-25 08:47:38,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:47:38,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:47:38,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:38,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:47:38,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:47:38,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6781b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38, skipping insertion in model container [2019-11-25 08:47:38,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:47:38,350 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:47:38,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:38,788 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:47:38,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:47:38,912 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:47:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38 WrapperNode [2019-11-25 08:47:38,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:47:38,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:38,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:47:38,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:47:38,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:47:38,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:47:38,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:47:38,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:47:38,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... [2019-11-25 08:47:38,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:47:38,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:47:38,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:47:38,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:47:38,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/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 [2019-11-25 08:47:39,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:47:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-25 08:47:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:47:39,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:47:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-25 08:47:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-25 08:47:39,050 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-25 08:47:39,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-25 08:47:39,051 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-25 08:47:39,051 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-25 08:47:39,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-25 08:47:39,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:47:39,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:47:39,056 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:47:39,399 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:47:39,399 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:47:39,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:39 BoogieIcfgContainer [2019-11-25 08:47:39,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:47:39,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:47:39,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:47:39,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:47:39,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:47:38" (1/3) ... [2019-11-25 08:47:39,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117b1995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:39, skipping insertion in model container [2019-11-25 08:47:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:47:38" (2/3) ... [2019-11-25 08:47:39,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@117b1995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:47:39, skipping insertion in model container [2019-11-25 08:47:39,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:39" (3/3) ... [2019-11-25 08:47:39,406 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-11-25 08:47:39,463 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,463 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,464 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,464 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,464 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,464 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,464 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,465 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,465 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,465 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,465 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,465 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,466 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,467 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,467 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,467 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,467 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,467 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,468 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,468 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,468 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,468 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,468 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,469 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,470 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,470 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,470 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,470 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,470 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,471 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,471 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,471 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,471 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,472 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,472 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,472 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,472 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,473 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:47:39,493 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:47:39,493 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:47:39,498 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:47:39,505 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:47:39,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:47:39,522 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:47:39,522 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:47:39,522 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:47:39,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:47:39,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:47:39,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:47:39,522 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:47:39,532 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-25 08:47:39,664 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-25 08:47:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-25 08:47:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:47:39,680 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:39,681 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:39,681 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:39,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:39,686 INFO L82 PathProgramCache]: Analyzing trace with hash 472898366, now seen corresponding path program 1 times [2019-11-25 08:47:39,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:39,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595967759] [2019-11-25 08:47:39,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:40,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:40,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595967759] [2019-11-25 08:47:40,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:40,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:47:40,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205292266] [2019-11-25 08:47:40,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:47:40,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:40,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:47:40,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:47:40,032 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-25 08:47:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:40,120 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-25 08:47:40,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:47:40,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-25 08:47:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:40,142 INFO L225 Difference]: With dead ends: 1294 [2019-11-25 08:47:40,142 INFO L226 Difference]: Without dead ends: 600 [2019-11-25 08:47:40,143 INFO L630 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 [2019-11-25 08:47:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-25 08:47:40,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-25 08:47:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-25 08:47:40,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-25 08:47:40,244 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-25 08:47:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:40,244 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-25 08:47:40,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:47:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-25 08:47:40,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-25 08:47:40,248 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:40,248 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:40,248 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:40,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:40,248 INFO L82 PathProgramCache]: Analyzing trace with hash 364621560, now seen corresponding path program 1 times [2019-11-25 08:47:40,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:40,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945371329] [2019-11-25 08:47:40,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:40,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:40,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945371329] [2019-11-25 08:47:40,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:40,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:47:40,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770996452] [2019-11-25 08:47:40,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:47:40,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:40,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:47:40,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:47:40,362 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-25 08:47:40,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:40,426 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-25 08:47:40,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:47:40,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-25 08:47:40,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:40,432 INFO L225 Difference]: With dead ends: 600 [2019-11-25 08:47:40,432 INFO L226 Difference]: Without dead ends: 537 [2019-11-25 08:47:40,433 INFO L630 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 [2019-11-25 08:47:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-25 08:47:40,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-25 08:47:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-25 08:47:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-25 08:47:40,462 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-25 08:47:40,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:40,462 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-25 08:47:40,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:47:40,462 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-25 08:47:40,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:47:40,464 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:40,464 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:40,465 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1794873428, now seen corresponding path program 1 times [2019-11-25 08:47:40,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:40,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638298106] [2019-11-25 08:47:40,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:40,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:40,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638298106] [2019-11-25 08:47:40,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:40,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:47:40,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323830375] [2019-11-25 08:47:40,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:47:40,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:40,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:47:40,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:47:40,593 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-25 08:47:40,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:40,705 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-25 08:47:40,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:47:40,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-25 08:47:40,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:40,711 INFO L225 Difference]: With dead ends: 402 [2019-11-25 08:47:40,712 INFO L226 Difference]: Without dead ends: 348 [2019-11-25 08:47:40,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:47:40,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-25 08:47:40,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-25 08:47:40,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-25 08:47:40,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-25 08:47:40,728 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-25 08:47:40,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:40,728 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-25 08:47:40,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:47:40,728 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-25 08:47:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:40,731 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:40,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:40,732 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:40,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:40,732 INFO L82 PathProgramCache]: Analyzing trace with hash 742809250, now seen corresponding path program 1 times [2019-11-25 08:47:40,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:40,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516167605] [2019-11-25 08:47:40,733 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:40,918 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516167605] [2019-11-25 08:47:40,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:40,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:47:40,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904812905] [2019-11-25 08:47:40,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:47:40,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:40,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:47:40,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:47:40,920 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 6 states. [2019-11-25 08:47:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:41,128 INFO L93 Difference]: Finished difference Result 564 states and 1499 transitions. [2019-11-25 08:47:41,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:47:41,129 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-25 08:47:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:41,132 INFO L225 Difference]: With dead ends: 564 [2019-11-25 08:47:41,132 INFO L226 Difference]: Without dead ends: 279 [2019-11-25 08:47:41,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:47:41,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2019-11-25 08:47:41,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2019-11-25 08:47:41,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2019-11-25 08:47:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 725 transitions. [2019-11-25 08:47:41,144 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 725 transitions. Word has length 33 [2019-11-25 08:47:41,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:41,144 INFO L462 AbstractCegarLoop]: Abstraction has 279 states and 725 transitions. [2019-11-25 08:47:41,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:47:41,144 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 725 transitions. [2019-11-25 08:47:41,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:41,146 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:41,146 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:41,147 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:41,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash 539120254, now seen corresponding path program 2 times [2019-11-25 08:47:41,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:41,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666437539] [2019-11-25 08:47:41,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:41,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:41,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666437539] [2019-11-25 08:47:41,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:41,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-25 08:47:41,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761468556] [2019-11-25 08:47:41,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:47:41,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:41,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:47:41,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:47:41,318 INFO L87 Difference]: Start difference. First operand 279 states and 725 transitions. Second operand 7 states. [2019-11-25 08:47:41,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:41,423 INFO L93 Difference]: Finished difference Result 450 states and 1205 transitions. [2019-11-25 08:47:41,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:47:41,424 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-25 08:47:41,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:41,426 INFO L225 Difference]: With dead ends: 450 [2019-11-25 08:47:41,426 INFO L226 Difference]: Without dead ends: 252 [2019-11-25 08:47:41,427 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:47:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-11-25 08:47:41,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2019-11-25 08:47:41,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-11-25 08:47:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 671 transitions. [2019-11-25 08:47:41,436 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 671 transitions. Word has length 33 [2019-11-25 08:47:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:41,437 INFO L462 AbstractCegarLoop]: Abstraction has 252 states and 671 transitions. [2019-11-25 08:47:41,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:47:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 671 transitions. [2019-11-25 08:47:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:47:41,447 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:47:41,447 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:47:41,448 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:47:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:47:41,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1029255572, now seen corresponding path program 3 times [2019-11-25 08:47:41,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:47:41,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081703157] [2019-11-25 08:47:41,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:47:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:47:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:47:41,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081703157] [2019-11-25 08:47:41,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:47:41,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:47:41,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388455033] [2019-11-25 08:47:41,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:47:41,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:47:41,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:47:41,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:47:41,651 INFO L87 Difference]: Start difference. First operand 252 states and 671 transitions. Second operand 8 states. [2019-11-25 08:47:41,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:47:41,735 INFO L93 Difference]: Finished difference Result 198 states and 509 transitions. [2019-11-25 08:47:41,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:47:41,735 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-25 08:47:41,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:47:41,736 INFO L225 Difference]: With dead ends: 198 [2019-11-25 08:47:41,736 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:47:41,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:47:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:47:41,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:47:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:47:41,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:47:41,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-25 08:47:41,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:47:41,737 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:47:41,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:47:41,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:47:41,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:47:41,740 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:47:41,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:47:41 BasicIcfg [2019-11-25 08:47:41,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:47:41,743 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:47:41,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:47:41,744 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:47:41,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:47:39" (3/4) ... [2019-11-25 08:47:41,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:47:41,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-25 08:47:41,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-25 08:47:41,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-25 08:47:41,765 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:47:41,765 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:47:41,765 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:47:41,805 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_217bf802-4ee8-48d6-877d-f406d9d079cb/bin/uautomizer/witness.graphml [2019-11-25 08:47:41,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:47:41,807 INFO L168 Benchmark]: Toolchain (without parser) took 3529.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:41,807 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-11-25 08:47:41,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:41,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.74 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. [2019-11-25 08:47:41,808 INFO L168 Benchmark]: Boogie Preprocessor took 24.34 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. [2019-11-25 08:47:41,808 INFO L168 Benchmark]: RCFGBuilder took 417.96 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:41,809 INFO L168 Benchmark]: TraceAbstraction took 2342.45 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: -23.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:47:41,809 INFO L168 Benchmark]: Witness Printer took 61.79 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:47:41,811 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 631.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.74 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 24.34 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 417.96 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2342.45 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: -23.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 61.79 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: 6.9 MB). Peak memory consumption was 6.9 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 13 procedures, 89 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 279 SDtfs, 356 SDslu, 685 SDs, 0 SdLazy, 94 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 16986 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...