./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/structure_assignment.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/structure_assignment.i -s /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/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 c2b2c558ebaf05bdc56eb3149a9975d865a1792e ............................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:05:06,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:05:06,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:05:06,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:05:06,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:05:06,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:05:06,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:05:06,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:05:06,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:05:06,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:05:06,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:05:06,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:05:06,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:05:06,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:05:06,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:05:06,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:05:06,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:05:06,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:05:06,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:05:06,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:05:06,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:05:06,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:05:06,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:05:06,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:05:06,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:05:06,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:05:06,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:05:06,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:05:06,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:05:06,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:05:06,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:05:06,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:05:06,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:05:06,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:05:06,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:05:06,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:05:06,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:05:06,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:05:06,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:05:06,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:05:06,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:05:06,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:05:06,177 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:05:06,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:05:06,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:05:06,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:05:06,179 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:05:06,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:05:06,179 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:05:06,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:05:06,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:05:06,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:05:06,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:05:06,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:05:06,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:05:06,181 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:05:06,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:05:06,181 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:05:06,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:05:06,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:05:06,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:05:06,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:05:06,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:05:06,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:05:06,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:05:06,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:05:06,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:05:06,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:05:06,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:05:06,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:05:06,189 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_561fc866-925d-473f-913e-78e3ee00c0a4/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 -> c2b2c558ebaf05bdc56eb3149a9975d865a1792e [2019-11-20 00:05:06,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:05:06,331 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:05:06,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:05:06,336 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:05:06,336 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:05:06,336 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/structure_assignment.i [2019-11-20 00:05:06,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/data/cb153a705/cd8c85bf0c9c48d5b9ec754919dd58b9/FLAG7fa4db2e1 [2019-11-20 00:05:06,782 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:05:06,782 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/sv-benchmarks/c/ldv-regression/structure_assignment.i [2019-11-20 00:05:06,789 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/data/cb153a705/cd8c85bf0c9c48d5b9ec754919dd58b9/FLAG7fa4db2e1 [2019-11-20 00:05:06,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/data/cb153a705/cd8c85bf0c9c48d5b9ec754919dd58b9 [2019-11-20 00:05:06,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:05:06,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:05:06,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:05:06,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:05:06,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:05:06,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:06" (1/1) ... [2019-11-20 00:05:06,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b3a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:06, skipping insertion in model container [2019-11-20 00:05:06,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:06" (1/1) ... [2019-11-20 00:05:06,828 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:05:06,846 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:05:07,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:05:07,038 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:05:07,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:05:07,152 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:05:07,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07 WrapperNode [2019-11-20 00:05:07,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:05:07,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:05:07,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:05:07,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:05:07,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:05:07,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:05:07,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:05:07,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:05:07,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... [2019-11-20 00:05:07,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:05:07,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:05:07,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:05:07,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:05:07,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/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 [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:05:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:05:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:05:07,440 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:05:07,440 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 00:05:07,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:07 BoogieIcfgContainer [2019-11-20 00:05:07,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:05:07,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:05:07,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:05:07,445 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:05:07,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:05:06" (1/3) ... [2019-11-20 00:05:07,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe8b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:07, skipping insertion in model container [2019-11-20 00:05:07,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:07" (2/3) ... [2019-11-20 00:05:07,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe8b75a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:07, skipping insertion in model container [2019-11-20 00:05:07,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:07" (3/3) ... [2019-11-20 00:05:07,448 INFO L109 eAbstractionObserver]: Analyzing ICFG structure_assignment.i [2019-11-20 00:05:07,458 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:05:07,463 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:05:07,474 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:05:07,491 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:05:07,492 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:05:07,492 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:05:07,492 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:05:07,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:05:07,492 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:05:07,493 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:05:07,493 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:05:07,504 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-20 00:05:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 00:05:07,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:05:07,509 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-20 00:05:07,509 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:05:07,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:05:07,514 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-11-20 00:05:07,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:05:07,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507248136] [2019-11-20 00:05:07,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:05:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:05:07,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:05:07,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507248136] [2019-11-20 00:05:07,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:05:07,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 00:05:07,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11957422] [2019-11-20 00:05:07,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 00:05:07,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:05:07,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 00:05:07,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:05:07,665 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-11-20 00:05:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:05:07,681 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-20 00:05:07,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 00:05:07,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-20 00:05:07,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:05:07,709 INFO L225 Difference]: With dead ends: 13 [2019-11-20 00:05:07,709 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:05:07,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 00:05:07,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:05:07,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:05:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:05:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:05:07,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-20 00:05:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:05:07,738 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:05:07,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 00:05:07,738 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:05:07,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:05:07,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:05:07,767 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:05:07,767 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:05:07,767 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:05:07,767 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:05:07,768 INFO L447 ceAbstractionStarter]: At program point L25(lines 19 26) the Hoare annotation is: true [2019-11-20 00:05:07,768 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-20 00:05:07,768 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-20 00:05:07,768 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-20 00:05:07,769 INFO L444 ceAbstractionStarter]: For program point L7(lines 1 26) no Hoare annotation was computed. [2019-11-20 00:05:07,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:05:07 BoogieIcfgContainer [2019-11-20 00:05:07,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:05:07,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:05:07,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:05:07,776 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:05:07,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:07" (3/4) ... [2019-11-20 00:05:07,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:05:07,789 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 00:05:07,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 00:05:07,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:05:07,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_561fc866-925d-473f-913e-78e3ee00c0a4/bin/uautomizer/witness.graphml [2019-11-20 00:05:07,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:05:07,840 INFO L168 Benchmark]: Toolchain (without parser) took 1029.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -163.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:05:07,841 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-11-20 00:05:07,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:05:07,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:05:07,842 INFO L168 Benchmark]: Boogie Preprocessor took 28.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:05:07,843 INFO L168 Benchmark]: RCFGBuilder took 221.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:05:07,844 INFO L168 Benchmark]: TraceAbstraction took 333.14 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:05:07,844 INFO L168 Benchmark]: Witness Printer took 63.31 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 00:05:07,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 341.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 221.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 333.14 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.31 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...