./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c --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_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/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 8890a6e15e91dc33e0e8fdcf0ca164911989393b ...................................................................................................................................................................................................................................................................................................... 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 04:48:54,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:48:54,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:48:54,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:48:54,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:48:54,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:48:54,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:48:54,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:48:54,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:48:54,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:48:54,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:48:54,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:48:54,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:48:54,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:48:54,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:48:54,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:48:54,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:48:54,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:48:54,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:48:54,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:48:54,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:48:54,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:48:54,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:48:54,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:48:54,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:48:54,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:48:54,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:48:54,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:48:54,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:48:54,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:48:54,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:48:54,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:48:54,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:48:54,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:48:54,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:48:54,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:48:54,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:48:54,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:48:54,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:48:54,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:48:54,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:48:54,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:48:54,223 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:48:54,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:48:54,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:48:54,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:48:54,224 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:48:54,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:48:54,225 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:48:54,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:48:54,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:48:54,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:48:54,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:48:54,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:48:54,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:48:54,226 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:48:54,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:48:54,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:48:54,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:48:54,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:48:54,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:48:54,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:48:54,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:48:54,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:48:54,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:48:54,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:48:54,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:48:54,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:48:54,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:48:54,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:48:54,229 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_fac09909-9c9d-4205-b1e5-1b70e2a351ef/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 -> 8890a6e15e91dc33e0e8fdcf0ca164911989393b [2019-11-20 04:48:54,377 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:48:54,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:48:54,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:48:54,392 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:48:54,392 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:48:54,398 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/../../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-11-20 04:48:54,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/data/aa6a76b0f/78d8cf62cbd0453bb0b24fad5a4ac44f/FLAG0d3e2d680 [2019-11-20 04:48:54,865 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:48:54,866 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2019-11-20 04:48:54,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/data/aa6a76b0f/78d8cf62cbd0453bb0b24fad5a4ac44f/FLAG0d3e2d680 [2019-11-20 04:48:54,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/data/aa6a76b0f/78d8cf62cbd0453bb0b24fad5a4ac44f [2019-11-20 04:48:54,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:48:54,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:48:54,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:54,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:48:54,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:48:54,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:54" (1/1) ... [2019-11-20 04:48:54,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1771f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:54, skipping insertion in model container [2019-11-20 04:48:54,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:48:54" (1/1) ... [2019-11-20 04:48:54,916 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:48:54,936 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:48:55,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:55,143 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:48:55,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:48:55,248 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:48:55,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55 WrapperNode [2019-11-20 04:48:55,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:48:55,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:55,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:48:55,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:48:55,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:48:55,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:48:55,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:48:55,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:48:55,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... [2019-11-20 04:48:55,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:48:55,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:48:55,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:48:55,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:48:55,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/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 04:48:55,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:48:55,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:48:55,579 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:48:55,579 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 04:48:55,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:55 BoogieIcfgContainer [2019-11-20 04:48:55,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:48:55,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:48:55,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:48:55,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:48:55,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:48:54" (1/3) ... [2019-11-20 04:48:55,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f271c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:55, skipping insertion in model container [2019-11-20 04:48:55,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:48:55" (2/3) ... [2019-11-20 04:48:55,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f271c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:48:55, skipping insertion in model container [2019-11-20 04:48:55,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:55" (3/3) ... [2019-11-20 04:48:55,587 INFO L109 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2019-11-20 04:48:55,595 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:48:55,622 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 04:48:55,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 04:48:55,658 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:48:55,658 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:48:55,658 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:48:55,658 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:48:55,659 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:48:55,659 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:48:55,659 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:48:55,659 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:48:55,673 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 04:48:55,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 04:48:55,679 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:55,680 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:55,681 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:55,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:55,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1804535397, now seen corresponding path program 1 times [2019-11-20 04:48:55,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:48:55,693 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89158310] [2019-11-20 04:48:55,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:48:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:55,873 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 04:48:55,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89158310] [2019-11-20 04:48:55,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:55,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:48:55,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724303477] [2019-11-20 04:48:55,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:48:55,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:48:55,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:48:55,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:48:55,892 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-11-20 04:48:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:55,938 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-11-20 04:48:55,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:48:55,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-20 04:48:55,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:55,949 INFO L225 Difference]: With dead ends: 29 [2019-11-20 04:48:55,950 INFO L226 Difference]: Without dead ends: 16 [2019-11-20 04:48:55,952 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 04:48:55,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-20 04:48:55,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2019-11-20 04:48:55,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 04:48:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2019-11-20 04:48:55,977 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2019-11-20 04:48:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:55,977 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2019-11-20 04:48:55,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:48:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-11-20 04:48:55,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 04:48:55,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:48:55,978 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:48:55,978 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:48:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:48:55,979 INFO L82 PathProgramCache]: Analyzing trace with hash -527269500, now seen corresponding path program 1 times [2019-11-20 04:48:55,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:48:55,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181073165] [2019-11-20 04:48:55,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:48:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:48:56,240 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 16 [2019-11-20 04:48:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:48:56,247 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181073165] [2019-11-20 04:48:56,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:48:56,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:48:56,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443889701] [2019-11-20 04:48:56,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 04:48:56,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:48:56,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 04:48:56,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 04:48:56,250 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2019-11-20 04:48:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:48:56,342 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-11-20 04:48:56,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 04:48:56,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-20 04:48:56,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:48:56,344 INFO L225 Difference]: With dead ends: 25 [2019-11-20 04:48:56,344 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:48:56,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:48:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:48:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:48:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:48:56,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:48:56,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 04:48:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:48:56,346 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:48:56,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 04:48:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:48:56,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:48:56,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 04:48:56,402 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 04:48:56,402 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 47) no Hoare annotation was computed. [2019-11-20 04:48:56,402 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 74) no Hoare annotation was computed. [2019-11-20 04:48:56,402 INFO L447 ceAbstractionStarter]: At program point L73(lines 7 76) the Hoare annotation is: true [2019-11-20 04:48:56,402 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 04:48:56,402 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 61) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point L16(lines 16 48) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 75) no Hoare annotation was computed. [2019-11-20 04:48:56,403 INFO L440 ceAbstractionStarter]: At program point L45(lines 8 76) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~main__y~0 0) (<= ULTIMATE.start_main_~main__x~0 (let ((.cse0 (div ULTIMATE.start_main_~main__x~0 4294967296))) (+ (* 3 (div (+ ULTIMATE.start_main_~main__x~0 (* .cse0 (- 4294967296))) 3)) (* 4294967296 .cse0))))) (and (<= 1 ULTIMATE.start_main_~main__y~0) (<= (div ULTIMATE.start_main_~main__y~0 4294967296) 0))) [2019-11-20 04:48:56,404 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 46) no Hoare annotation was computed. [2019-11-20 04:48:56,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:48:56 BoogieIcfgContainer [2019-11-20 04:48:56,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:48:56,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:48:56,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:48:56,422 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:48:56,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:48:55" (3/4) ... [2019-11-20 04:48:56,426 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:48:56,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 04:48:56,440 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:48:56,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fac09909-9c9d-4205-b1e5-1b70e2a351ef/bin/uautomizer/witness.graphml [2019-11-20 04:48:56,489 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:48:56,491 INFO L168 Benchmark]: Toolchain (without parser) took 1596.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -79.7 MB). Peak memory consumption was 36.7 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,491 INFO L168 Benchmark]: CDTParser took 0.22 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 04:48:56,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:48:56,493 INFO L168 Benchmark]: Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,493 INFO L168 Benchmark]: RCFGBuilder took 276.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,494 INFO L168 Benchmark]: TraceAbstraction took 839.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,494 INFO L168 Benchmark]: Witness Printer took 67.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2019-11-20 04:48:56,497 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 276.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 839.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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: 8]: Loop Invariant Derived loop invariant: (main__y == 0 && main__x <= 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) + 4294967296 * (main__x / 4294967296)) || (1 <= main__y && main__y / 4294967296 <= 0) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 10 SDslu, 26 SDs, 0 SdLazy, 22 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 34 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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...