./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_tso.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_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/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 14d1544190100268c5c0ac7bd19a151fe7c692d5 ................................................................................................................................................................................................................................................................................................................................................................................................ 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 22:40:31,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:40:31,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:40:31,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:40:31,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:40:31,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:40:31,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:40:31,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:40:31,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:40:31,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:40:31,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:40:31,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:40:31,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:40:31,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:40:31,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:40:31,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:40:31,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:40:31,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:40:31,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:40:31,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:40:31,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:40:31,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:40:31,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:40:31,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:40:31,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:40:31,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:40:31,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:40:31,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:40:31,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:40:31,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:40:31,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:40:31,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:40:31,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:40:31,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:40:31,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:40:31,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:40:31,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:40:31,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:40:31,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:40:31,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:40:31,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:40:31,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:40:31,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:40:31,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:40:31,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:40:31,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:40:31,298 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:40:31,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:40:31,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:40:31,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:40:31,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:40:31,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:40:31,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:40:31,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:40:31,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:40:31,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:40:31,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:40:31,300 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:40:31,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:40:31,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:40:31,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:40:31,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:40:31,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:40:31,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:40:31,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:40:31,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:40:31,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:40:31,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:40:31,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:40:31,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:40:31,303 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_92afe234-ca6e-4ceb-96ed-f5639782dcba/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 -> 14d1544190100268c5c0ac7bd19a151fe7c692d5 [2019-11-15 22:40:31,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:40:31,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:40:31,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:40:31,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:40:31,366 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:40:31,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i [2019-11-15 22:40:31,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/data/ae1b8d22a/ec4b257706b4432c8abdbff24783ff28/FLAG6610eed26 [2019-11-15 22:40:31,921 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:40:31,922 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/sv-benchmarks/c/pthread-wmm/safe033_tso.oepc.i [2019-11-15 22:40:31,942 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/data/ae1b8d22a/ec4b257706b4432c8abdbff24783ff28/FLAG6610eed26 [2019-11-15 22:40:32,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/data/ae1b8d22a/ec4b257706b4432c8abdbff24783ff28 [2019-11-15 22:40:32,240 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:40:32,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:40:32,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:40:32,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:40:32,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:40:32,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30031fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32, skipping insertion in model container [2019-11-15 22:40:32,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,261 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:40:32,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:40:32,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:40:32,681 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:40:32,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:40:32,819 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:40:32,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32 WrapperNode [2019-11-15 22:40:32,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:40:32,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:40:32,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:40:32,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:40:32,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:40:32,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:40:32,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:40:32,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:40:32,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... [2019-11-15 22:40:32,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:40:32,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:40:32,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:40:32,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:40:32,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/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 22:40:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 22:40:32,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 22:40:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 22:40:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 22:40:32,956 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 22:40:32,956 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 22:40:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 22:40:32,957 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 22:40:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 22:40:32,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:40:32,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:40:32,959 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 22:40:33,343 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:40:33,344 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 22:40:33,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:40:33 BoogieIcfgContainer [2019-11-15 22:40:33,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:40:33,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:40:33,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:40:33,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:40:33,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:40:32" (1/3) ... [2019-11-15 22:40:33,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e94e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:40:33, skipping insertion in model container [2019-11-15 22:40:33,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:40:32" (2/3) ... [2019-11-15 22:40:33,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e94e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:40:33, skipping insertion in model container [2019-11-15 22:40:33,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:40:33" (3/3) ... [2019-11-15 22:40:33,352 INFO L109 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2019-11-15 22:40:33,389 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,389 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,390 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,390 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,391 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,391 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,392 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,392 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,393 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,393 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,393 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 22:40:33,412 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 22:40:33,412 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:40:33,423 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 22:40:33,435 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 22:40:33,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:40:33,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:40:33,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:40:33,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:40:33,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:40:33,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:40:33,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:40:33,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:40:33,465 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 39 transitions [2019-11-15 22:40:33,513 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 285 states. [2019-11-15 22:40:33,515 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2019-11-15 22:40:33,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 22:40:33,530 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:40:33,531 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] [2019-11-15 22:40:33,534 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:40:33,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:40:33,540 INFO L82 PathProgramCache]: Analyzing trace with hash 958989970, now seen corresponding path program 1 times [2019-11-15 22:40:33,548 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:40:33,549 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631718480] [2019-11-15 22:40:33,550 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:33,550 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:33,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:40:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:40:33,903 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 22:40:33,904 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631718480] [2019-11-15 22:40:33,904 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:40:33,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:40:33,905 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674955645] [2019-11-15 22:40:33,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:40:33,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:40:33,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:40:33,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:40:33,926 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2019-11-15 22:40:34,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:40:34,004 INFO L93 Difference]: Finished difference Result 286 states and 645 transitions. [2019-11-15 22:40:34,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:40:34,006 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-11-15 22:40:34,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:40:34,016 INFO L225 Difference]: With dead ends: 286 [2019-11-15 22:40:34,017 INFO L226 Difference]: Without dead ends: 150 [2019-11-15 22:40:34,018 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 22:40:34,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-15 22:40:34,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2019-11-15 22:40:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-15 22:40:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 324 transitions. [2019-11-15 22:40:34,065 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 324 transitions. Word has length 24 [2019-11-15 22:40:34,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:40:34,066 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 324 transitions. [2019-11-15 22:40:34,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:40:34,066 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 324 transitions. [2019-11-15 22:40:34,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 22:40:34,068 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:40:34,068 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 22:40:34,069 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:40:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:40:34,069 INFO L82 PathProgramCache]: Analyzing trace with hash 305876632, now seen corresponding path program 1 times [2019-11-15 22:40:34,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:40:34,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108625339] [2019-11-15 22:40:34,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:40:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:40:34,211 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 22:40:34,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108625339] [2019-11-15 22:40:34,212 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:40:34,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:40:34,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188708681] [2019-11-15 22:40:34,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:40:34,214 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:40:34,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:40:34,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:40:34,215 INFO L87 Difference]: Start difference. First operand 150 states and 324 transitions. Second operand 5 states. [2019-11-15 22:40:34,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:40:34,356 INFO L93 Difference]: Finished difference Result 123 states and 240 transitions. [2019-11-15 22:40:34,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:40:34,357 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 22:40:34,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:40:34,358 INFO L225 Difference]: With dead ends: 123 [2019-11-15 22:40:34,358 INFO L226 Difference]: Without dead ends: 108 [2019-11-15 22:40:34,359 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:40:34,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-15 22:40:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-11-15 22:40:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-15 22:40:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 212 transitions. [2019-11-15 22:40:34,371 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 212 transitions. Word has length 25 [2019-11-15 22:40:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:40:34,377 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 212 transitions. [2019-11-15 22:40:34,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:40:34,377 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 212 transitions. [2019-11-15 22:40:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 22:40:34,378 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:40:34,379 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 22:40:34,379 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:40:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:40:34,379 INFO L82 PathProgramCache]: Analyzing trace with hash -2064102409, now seen corresponding path program 1 times [2019-11-15 22:40:34,379 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:40:34,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814948321] [2019-11-15 22:40:34,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,380 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,380 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:40:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:40:34,533 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 22:40:34,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814948321] [2019-11-15 22:40:34,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:40:34,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 22:40:34,534 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267803671] [2019-11-15 22:40:34,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 22:40:34,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:40:34,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 22:40:34,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:40:34,535 INFO L87 Difference]: Start difference. First operand 108 states and 212 transitions. Second operand 6 states. [2019-11-15 22:40:34,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:40:34,695 INFO L93 Difference]: Finished difference Result 162 states and 329 transitions. [2019-11-15 22:40:34,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:40:34,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-15 22:40:34,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:40:34,697 INFO L225 Difference]: With dead ends: 162 [2019-11-15 22:40:34,697 INFO L226 Difference]: Without dead ends: 93 [2019-11-15 22:40:34,698 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-15 22:40:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-15 22:40:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2019-11-15 22:40:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-15 22:40:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 182 transitions. [2019-11-15 22:40:34,705 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 182 transitions. Word has length 26 [2019-11-15 22:40:34,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:40:34,705 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 182 transitions. [2019-11-15 22:40:34,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 22:40:34,706 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 182 transitions. [2019-11-15 22:40:34,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 22:40:34,706 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:40:34,707 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 22:40:34,707 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:40:34,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:40:34,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1419187541, now seen corresponding path program 2 times [2019-11-15 22:40:34,707 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:40:34,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251473392] [2019-11-15 22:40:34,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,707 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:40:34,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:40:34,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:40:34,839 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 22:40:34,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251473392] [2019-11-15 22:40:34,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:40:34,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-15 22:40:34,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106708801] [2019-11-15 22:40:34,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-15 22:40:34,840 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:40:34,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-15 22:40:34,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-15 22:40:34,841 INFO L87 Difference]: Start difference. First operand 93 states and 182 transitions. Second operand 7 states. [2019-11-15 22:40:34,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:40:34,960 INFO L93 Difference]: Finished difference Result 75 states and 140 transitions. [2019-11-15 22:40:34,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:40:34,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2019-11-15 22:40:34,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:40:34,961 INFO L225 Difference]: With dead ends: 75 [2019-11-15 22:40:34,961 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:40:34,961 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 22:40:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:40:34,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:40:34,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:40:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:40:34,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-11-15 22:40:34,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:40:34,963 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:40:34,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-15 22:40:34,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:40:34,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:40:34,966 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 22:40:34,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:40:34 BasicIcfg [2019-11-15 22:40:34,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:40:34,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:40:34,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:40:34,971 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:40:34,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:40:33" (3/4) ... [2019-11-15 22:40:34,976 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:40:34,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 22:40:34,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 22:40:34,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 22:40:34,992 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 22:40:35,064 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_92afe234-ca6e-4ceb-96ed-f5639782dcba/bin/uautomizer/witness.graphml [2019-11-15 22:40:35,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:40:35,067 INFO L168 Benchmark]: Toolchain (without parser) took 2824.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 943.7 MB in the end (delta: 985.0 kB). Peak memory consumption was 122.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:40:35,067 INFO L168 Benchmark]: CDTParser took 0.24 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 22:40:35,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 573.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:40:35,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.28 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:40:35,069 INFO L168 Benchmark]: Boogie Preprocessor took 23.32 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. [2019-11-15 22:40:35,069 INFO L168 Benchmark]: RCFGBuilder took 456.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-15 22:40:35,070 INFO L168 Benchmark]: TraceAbstraction took 1624.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.7 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. [2019-11-15 22:40:35,070 INFO L168 Benchmark]: Witness Printer took 93.94 ms. Allocated memory is still 1.2 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:40:35,077 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 573.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.28 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.32 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 456.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1624.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 943.7 MB in the end (delta: 109.3 MB). Peak memory consumption was 109.3 MB. Max. memory is 11.5 GB. * Witness Printer took 93.94 ms. Allocated memory is still 1.2 GB. Free memory is still 943.7 MB. There was no memory consumed. 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, 49 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 139 SDslu, 307 SDs, 0 SdLazy, 50 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 6733 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...