./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin000_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_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/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 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:54:43,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 19:54:43,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 19:54:43,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 19:54:43,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 19:54:43,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 19:54:43,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 19:54:43,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 19:54:43,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 19:54:43,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 19:54:43,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 19:54:43,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 19:54:43,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 19:54:43,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 19:54:43,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 19:54:43,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 19:54:43,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 19:54:43,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 19:54:43,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 19:54:43,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 19:54:43,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 19:54:43,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 19:54:43,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 19:54:43,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 19:54:43,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 19:54:43,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 19:54:43,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 19:54:43,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 19:54:43,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 19:54:43,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 19:54:43,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 19:54:43,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 19:54:43,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 19:54:43,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 19:54:43,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 19:54:43,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 19:54:43,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 19:54:43,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 19:54:43,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 19:54:43,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 19:54:43,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 19:54:43,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 19:54:43,150 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 19:54:43,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 19:54:43,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 19:54:43,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 19:54:43,152 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 19:54:43,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 19:54:43,153 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 19:54:43,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 19:54:43,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 19:54:43,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 19:54:43,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 19:54:43,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 19:54:43,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 19:54:43,156 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 19:54:43,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 19:54:43,156 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 19:54:43,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 19:54:43,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 19:54:43,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 19:54:43,157 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 19:54:43,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 19:54:43,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 19:54:43,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 19:54:43,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 19:54:43,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 19:54:43,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 19:54:43,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 19:54:43,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 19:54:43,160 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_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/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 -> 8c30e8c5afc00fd444965b78aea48444bcdbf6e8 [2019-11-15 19:54:43,202 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 19:54:43,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 19:54:43,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 19:54:43,219 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 19:54:43,219 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 19:54:43,220 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-11-15 19:54:43,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/data/ac68a85a3/0d6c845ba2d04e43a9fbe8bc20b34ccb/FLAG10d4a0bd7 [2019-11-15 19:54:43,824 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 19:54:43,837 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2019-11-15 19:54:43,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/data/ac68a85a3/0d6c845ba2d04e43a9fbe8bc20b34ccb/FLAG10d4a0bd7 [2019-11-15 19:54:44,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/data/ac68a85a3/0d6c845ba2d04e43a9fbe8bc20b34ccb [2019-11-15 19:54:44,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 19:54:44,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 19:54:44,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 19:54:44,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 19:54:44,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 19:54:44,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15242ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44, skipping insertion in model container [2019-11-15 19:54:44,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,122 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 19:54:44,189 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 19:54:44,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:54:44,619 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 19:54:44,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 19:54:44,779 INFO L192 MainTranslator]: Completed translation [2019-11-15 19:54:44,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44 WrapperNode [2019-11-15 19:54:44,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 19:54:44,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 19:54:44,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 19:54:44,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 19:54:44,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 19:54:44,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 19:54:44,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 19:54:44,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 19:54:44,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... [2019-11-15 19:54:44,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 19:54:44,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 19:54:44,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 19:54:44,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 19:54:44,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/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 19:54:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 19:54:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 19:54:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 19:54:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 19:54:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 19:54:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 19:54:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 19:54:44,949 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 19:54:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 19:54:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 19:54:44,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 19:54:44,952 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 19:54:45,272 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 19:54:45,273 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 19:54:45,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:54:45 BoogieIcfgContainer [2019-11-15 19:54:45,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 19:54:45,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 19:54:45,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 19:54:45,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 19:54:45,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 07:54:44" (1/3) ... [2019-11-15 19:54:45,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6bae11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:54:45, skipping insertion in model container [2019-11-15 19:54:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 07:54:44" (2/3) ... [2019-11-15 19:54:45,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b6bae11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 07:54:45, skipping insertion in model container [2019-11-15 19:54:45,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:54:45" (3/3) ... [2019-11-15 19:54:45,284 INFO L109 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2019-11-15 19:54:45,339 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,339 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,339 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,339 WARN L315 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,340 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,340 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,341 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,341 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,341 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,341 WARN L315 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,342 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,342 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 19:54:45,363 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 19:54:45,363 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 19:54:45,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 19:54:45,386 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 19:54:45,405 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 19:54:45,405 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 19:54:45,405 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 19:54:45,405 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 19:54:45,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 19:54:45,405 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 19:54:45,406 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 19:54:45,406 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 19:54:45,415 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 40 transitions [2019-11-15 19:54:45,454 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 286 states. [2019-11-15 19:54:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states. [2019-11-15 19:54:45,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 19:54:45,469 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:54:45,470 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 19:54:45,472 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:54:45,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:54:45,477 INFO L82 PathProgramCache]: Analyzing trace with hash 68919135, now seen corresponding path program 1 times [2019-11-15 19:54:45,484 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:54:45,484 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524370091] [2019-11-15 19:54:45,484 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:45,484 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:45,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:54:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:54:45,857 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 19:54:45,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524370091] [2019-11-15 19:54:45,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:54:45,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 19:54:45,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071121491] [2019-11-15 19:54:45,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 19:54:45,864 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:54:45,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 19:54:45,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 19:54:45,882 INFO L87 Difference]: Start difference. First operand 286 states. Second operand 4 states. [2019-11-15 19:54:45,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:54:45,992 INFO L93 Difference]: Finished difference Result 287 states and 646 transitions. [2019-11-15 19:54:45,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 19:54:45,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-11-15 19:54:45,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:54:46,020 INFO L225 Difference]: With dead ends: 287 [2019-11-15 19:54:46,021 INFO L226 Difference]: Without dead ends: 151 [2019-11-15 19:54:46,023 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 19:54:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-15 19:54:46,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2019-11-15 19:54:46,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-15 19:54:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 325 transitions. [2019-11-15 19:54:46,083 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 325 transitions. Word has length 25 [2019-11-15 19:54:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:54:46,083 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 325 transitions. [2019-11-15 19:54:46,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 19:54:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 325 transitions. [2019-11-15 19:54:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 19:54:46,086 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:54:46,086 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 19:54:46,087 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:54:46,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:54:46,087 INFO L82 PathProgramCache]: Analyzing trace with hash -899884187, now seen corresponding path program 1 times [2019-11-15 19:54:46,087 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:54:46,088 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113311011] [2019-11-15 19:54:46,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,088 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:54:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:54:46,250 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 19:54:46,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113311011] [2019-11-15 19:54:46,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:54:46,257 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 19:54:46,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907726711] [2019-11-15 19:54:46,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 19:54:46,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:54:46,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 19:54:46,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 19:54:46,261 INFO L87 Difference]: Start difference. First operand 151 states and 325 transitions. Second operand 5 states. [2019-11-15 19:54:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:54:46,360 INFO L93 Difference]: Finished difference Result 124 states and 241 transitions. [2019-11-15 19:54:46,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 19:54:46,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-15 19:54:46,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:54:46,363 INFO L225 Difference]: With dead ends: 124 [2019-11-15 19:54:46,363 INFO L226 Difference]: Without dead ends: 109 [2019-11-15 19:54:46,364 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 19:54:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-15 19:54:46,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-15 19:54:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-15 19:54:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 213 transitions. [2019-11-15 19:54:46,387 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 213 transitions. Word has length 26 [2019-11-15 19:54:46,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:54:46,387 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 213 transitions. [2019-11-15 19:54:46,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 19:54:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 213 transitions. [2019-11-15 19:54:46,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 19:54:46,389 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:54:46,389 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:54:46,390 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:54:46,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:54:46,390 INFO L82 PathProgramCache]: Analyzing trace with hash 983397802, now seen corresponding path program 1 times [2019-11-15 19:54:46,390 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:54:46,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848163683] [2019-11-15 19:54:46,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,391 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:54:46,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:54:46,688 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 19:54:46,688 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848163683] [2019-11-15 19:54:46,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:54:46,689 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 19:54:46,689 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918392915] [2019-11-15 19:54:46,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 19:54:46,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:54:46,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 19:54:46,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 19:54:46,690 INFO L87 Difference]: Start difference. First operand 109 states and 213 transitions. Second operand 8 states. [2019-11-15 19:54:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:54:46,863 INFO L93 Difference]: Finished difference Result 163 states and 330 transitions. [2019-11-15 19:54:46,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 19:54:46,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-15 19:54:46,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:54:46,864 INFO L225 Difference]: With dead ends: 163 [2019-11-15 19:54:46,865 INFO L226 Difference]: Without dead ends: 94 [2019-11-15 19:54:46,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 19:54:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-11-15 19:54:46,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-11-15 19:54:46,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-15 19:54:46,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 183 transitions. [2019-11-15 19:54:46,873 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 183 transitions. Word has length 27 [2019-11-15 19:54:46,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:54:46,873 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 183 transitions. [2019-11-15 19:54:46,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 19:54:46,874 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 183 transitions. [2019-11-15 19:54:46,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-15 19:54:46,875 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 19:54:46,875 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 19:54:46,875 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 19:54:46,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 19:54:46,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1609190114, now seen corresponding path program 2 times [2019-11-15 19:54:46,876 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 19:54:46,876 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951752275] [2019-11-15 19:54:46,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 19:54:46,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 19:54:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 19:54:47,020 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 19:54:47,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951752275] [2019-11-15 19:54:47,020 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 19:54:47,021 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 19:54:47,021 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541225869] [2019-11-15 19:54:47,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 19:54:47,022 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 19:54:47,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 19:54:47,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 19:54:47,022 INFO L87 Difference]: Start difference. First operand 94 states and 183 transitions. Second operand 8 states. [2019-11-15 19:54:47,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 19:54:47,150 INFO L93 Difference]: Finished difference Result 76 states and 141 transitions. [2019-11-15 19:54:47,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 19:54:47,151 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2019-11-15 19:54:47,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 19:54:47,151 INFO L225 Difference]: With dead ends: 76 [2019-11-15 19:54:47,152 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 19:54:47,152 INFO L600 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 [2019-11-15 19:54:47,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 19:54:47,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 19:54:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 19:54:47,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 19:54:47,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-11-15 19:54:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 19:54:47,153 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 19:54:47,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 19:54:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 19:54:47,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 19:54:47,157 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 19:54:47,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 07:54:47 BasicIcfg [2019-11-15 19:54:47,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 19:54:47,159 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 19:54:47,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 19:54:47,160 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 19:54:47,160 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 07:54:45" (3/4) ... [2019-11-15 19:54:47,164 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 19:54:47,175 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 19:54:47,176 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 19:54:47,180 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-15 19:54:47,181 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 19:54:47,224 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8da1cc90-2c51-44d9-9f76-c3edad73d9c7/bin/uautomizer/witness.graphml [2019-11-15 19:54:47,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 19:54:47,227 INFO L168 Benchmark]: Toolchain (without parser) took 3122.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.3 MB in the beginning and 970.3 MB in the end (delta: -31.0 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2019-11-15 19:54:47,227 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:54:47,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-15 19:54:47,228 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.67 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 19:54:47,229 INFO L168 Benchmark]: Boogie Preprocessor took 29.40 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 19:54:47,229 INFO L168 Benchmark]: RCFGBuilder took 392.55 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2019-11-15 19:54:47,230 INFO L168 Benchmark]: TraceAbstraction took 1883.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.3 MB in the end (delta: 114.7 MB). Peak memory consumption was 114.7 MB. Max. memory is 11.5 GB. [2019-11-15 19:54:47,230 INFO L168 Benchmark]: Witness Printer took 65.54 ms. Allocated memory is still 1.2 GB. Free memory is still 970.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 19:54:47,232 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 675.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.67 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 29.40 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 392.55 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: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1883.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.3 MB in the end (delta: 114.7 MB). Peak memory consumption was 114.7 MB. Max. memory is 11.5 GB. * Witness Printer took 65.54 ms. Allocated memory is still 1.2 GB. Free memory is still 970.3 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, 50 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 140 SDtfs, 156 SDslu, 350 SDs, 0 SdLazy, 62 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=286occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 8353 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...