./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/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 024cd1c3d04a85b1ea51a85b80d9a485019f42aa ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:58:08,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:58:08,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:58:08,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:58:08,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:58:08,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:58:08,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:58:08,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:58:08,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:58:08,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:58:08,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:58:08,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:58:08,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:58:08,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:58:08,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:58:08,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:58:08,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:58:08,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:58:08,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:58:08,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:58:08,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:58:08,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:58:08,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:58:08,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:58:08,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:58:08,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:58:08,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:58:08,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:58:08,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:58:08,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:58:08,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:58:08,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:58:08,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:58:08,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:58:08,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:58:08,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:58:08,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:58:08,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:58:08,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:58:08,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:58:08,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:58:08,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:58:08,197 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:58:08,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:58:08,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:58:08,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:58:08,199 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:58:08,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:58:08,199 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:58:08,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:58:08,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:58:08,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:58:08,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:58:08,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:58:08,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:58:08,200 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:58:08,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:58:08,201 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:58:08,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:58:08,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:58:08,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:58:08,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:58:08,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:58:08,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:58:08,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:58:08,203 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_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/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 -> 024cd1c3d04a85b1ea51a85b80d9a485019f42aa [2019-12-07 18:58:08,302 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:58:08,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:58:08,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:58:08,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:58:08,317 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:58:08,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 18:58:08,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/data/ddf007e54/0fe10f17c25848f3814f70363acc8fb8/FLAG6a9e619fe [2019-12-07 18:58:08,804 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:58:08,804 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2019-12-07 18:58:08,813 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/data/ddf007e54/0fe10f17c25848f3814f70363acc8fb8/FLAG6a9e619fe [2019-12-07 18:58:08,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/data/ddf007e54/0fe10f17c25848f3814f70363acc8fb8 [2019-12-07 18:58:08,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:58:08,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:58:08,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:58:08,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:58:08,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:58:08,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:58:08" (1/1) ... [2019-12-07 18:58:08,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:08, skipping insertion in model container [2019-12-07 18:58:08,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:58:08" (1/1) ... [2019-12-07 18:58:08,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:58:08,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:58:09,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:58:09,070 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:58:09,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:58:09,134 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:58:09,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09 WrapperNode [2019-12-07 18:58:09,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:58:09,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:58:09,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:58:09,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:58:09,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:58:09,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:58:09,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:58:09,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:58:09,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... [2019-12-07 18:58:09,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:58:09,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:58:09,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:58:09,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:58:09,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/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 [2019-12-07 18:58:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:58:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:58:09,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:58:09,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:58:09,614 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:58:09,615 INFO L287 CfgBuilder]: Removed 76 assume(true) statements. [2019-12-07 18:58:09,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:09 BoogieIcfgContainer [2019-12-07 18:58:09,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:58:09,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:58:09,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:58:09,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:58:09,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:58:08" (1/3) ... [2019-12-07 18:58:09,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ae6cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:58:09, skipping insertion in model container [2019-12-07 18:58:09,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:58:09" (2/3) ... [2019-12-07 18:58:09,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ae6cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:58:09, skipping insertion in model container [2019-12-07 18:58:09,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:09" (3/3) ... [2019-12-07 18:58:09,620 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2019-12-07 18:58:09,626 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:58:09,631 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:58:09,638 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:58:09,654 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:58:09,654 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:58:09,654 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:58:09,654 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:58:09,654 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:58:09,655 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:58:09,655 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:58:09,655 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:58:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2019-12-07 18:58:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:58:09,670 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:09,670 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:09,671 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:09,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:09,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1892552075, now seen corresponding path program 1 times [2019-12-07 18:58:09,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:09,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615665447] [2019-12-07 18:58:09,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:09,824 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615665447] [2019-12-07 18:58:09,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:09,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:58:09,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391997046] [2019-12-07 18:58:09,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:58:09,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:09,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:58:09,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:58:09,838 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 2 states. [2019-12-07 18:58:09,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:09,854 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2019-12-07 18:58:09,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:58:09,855 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 18:58:09,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:09,862 INFO L225 Difference]: With dead ends: 124 [2019-12-07 18:58:09,862 INFO L226 Difference]: Without dead ends: 61 [2019-12-07 18:58:09,864 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:58:09,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-12-07 18:58:09,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-12-07 18:58:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-12-07 18:58:09,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2019-12-07 18:58:09,890 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2019-12-07 18:58:09,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:09,890 INFO L462 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2019-12-07 18:58:09,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:58:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2019-12-07 18:58:09,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:58:09,891 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:09,891 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:09,891 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:09,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:09,891 INFO L82 PathProgramCache]: Analyzing trace with hash 177187266, now seen corresponding path program 1 times [2019-12-07 18:58:09,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:09,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947841928] [2019-12-07 18:58:09,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:09,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947841928] [2019-12-07 18:58:09,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:09,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:58:09,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328826182] [2019-12-07 18:58:09,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:58:09,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:09,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:58:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:58:09,955 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand 3 states. [2019-12-07 18:58:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:09,962 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2019-12-07 18:58:09,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:58:09,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 18:58:09,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:09,963 INFO L225 Difference]: With dead ends: 61 [2019-12-07 18:58:09,963 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 18:58:09,964 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 [2019-12-07 18:58:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 18:58:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-07 18:58:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-07 18:58:09,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2019-12-07 18:58:09,967 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2019-12-07 18:58:09,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:09,967 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2019-12-07 18:58:09,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:58:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2019-12-07 18:58:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:58:09,968 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:09,968 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:09,968 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:09,968 INFO L82 PathProgramCache]: Analyzing trace with hash 755880693, now seen corresponding path program 1 times [2019-12-07 18:58:09,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:09,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150014563] [2019-12-07 18:58:09,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:09,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:10,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150014563] [2019-12-07 18:58:10,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:10,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:58:10,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055109812] [2019-12-07 18:58:10,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:58:10,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:10,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:58:10,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:58:10,017 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand 3 states. [2019-12-07 18:58:10,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:10,028 INFO L93 Difference]: Finished difference Result 81 states and 117 transitions. [2019-12-07 18:58:10,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:58:10,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 18:58:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:10,029 INFO L225 Difference]: With dead ends: 81 [2019-12-07 18:58:10,029 INFO L226 Difference]: Without dead ends: 56 [2019-12-07 18:58:10,029 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:58:10,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-07 18:58:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-12-07 18:58:10,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 18:58:10,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2019-12-07 18:58:10,036 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2019-12-07 18:58:10,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:10,036 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2019-12-07 18:58:10,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:58:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2019-12-07 18:58:10,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:58:10,037 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:10,037 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:10,037 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:10,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:10,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1883276786, now seen corresponding path program 1 times [2019-12-07 18:58:10,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:10,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661968402] [2019-12-07 18:58:10,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:58:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:58:10,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661968402] [2019-12-07 18:58:10,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:58:10,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:58:10,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692730726] [2019-12-07 18:58:10,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:58:10,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:58:10,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:58:10,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:58:10,086 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 5 states. [2019-12-07 18:58:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:58:10,155 INFO L93 Difference]: Finished difference Result 264 states and 404 transitions. [2019-12-07 18:58:10,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:58:10,155 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-12-07 18:58:10,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:58:10,158 INFO L225 Difference]: With dead ends: 264 [2019-12-07 18:58:10,158 INFO L226 Difference]: Without dead ends: 218 [2019-12-07 18:58:10,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:58:10,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-12-07 18:58:10,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 92. [2019-12-07 18:58:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-07 18:58:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 131 transitions. [2019-12-07 18:58:10,172 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 131 transitions. Word has length 24 [2019-12-07 18:58:10,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:58:10,172 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 131 transitions. [2019-12-07 18:58:10,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:58:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 131 transitions. [2019-12-07 18:58:10,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 18:58:10,173 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:58:10,173 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:58:10,173 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:58:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:58:10,174 INFO L82 PathProgramCache]: Analyzing trace with hash -535231376, now seen corresponding path program 1 times [2019-12-07 18:58:10,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:58:10,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654929710] [2019-12-07 18:58:10,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:58:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:58:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:58:10,282 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:58:10,283 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:58:10,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:58:10 BoogieIcfgContainer [2019-12-07 18:58:10,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:58:10,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:58:10,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:58:10,336 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:58:10,336 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:58:09" (3/4) ... [2019-12-07 18:58:10,338 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:58:10,388 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9936e9fc-fb1e-4fd9-9e55-4bb30634e969/bin/uautomizer/witness.graphml [2019-12-07 18:58:10,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:58:10,390 INFO L168 Benchmark]: Toolchain (without parser) took 1565.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 925.4 MB in the end (delta: 18.2 MB). Peak memory consumption was 123.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,390 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:58:10,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.99 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. [2019-12-07 18:58:10,391 INFO L168 Benchmark]: Boogie Preprocessor took 23.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,391 INFO L168 Benchmark]: RCFGBuilder took 415.45 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: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,392 INFO L168 Benchmark]: TraceAbstraction took 719.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 936.1 MB in the end (delta: 97.7 MB). Peak memory consumption was 97.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,392 INFO L168 Benchmark]: Witness Printer took 52.65 ms. Allocated memory is still 1.1 GB. Free memory was 936.1 MB in the beginning and 925.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:58:10,393 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.99 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 23.86 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 415.45 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: 49.8 MB). Peak memory consumption was 49.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 719.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 936.1 MB in the end (delta: 97.7 MB). Peak memory consumption was 97.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.65 ms. Allocated memory is still 1.1 GB. Free memory was 936.1 MB in the beginning and 925.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 799]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L78] int cleanupTimeShifts = 4; [L386] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L804] int waterLevel = 1; [L805] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] int retValue_acc ; [L160] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L208] int retValue_acc ; [L211] retValue_acc = 1 [L212] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] tmp = valid_product() [L168] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L729] int splverifierCounter ; [L730] int tmp ; [L731] int tmp___0 ; [L732] int tmp___1 ; [L733] int tmp___2 ; [L736] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L738] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L740] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L746] tmp = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L822] COND TRUE waterLevel < 2 [L823] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp___0 = __VERIFIER_nondet_int() [L758] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] tmp___2 = __VERIFIER_nondet_int() [L768] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L843] int retValue_acc ; [L846] retValue_acc = methaneLevelCritical [L847] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L875] int retValue_acc ; [L878] retValue_acc = waterLevel [L879] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L668] int retValue_acc ; [L671] retValue_acc = pumpRunning [L672] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 65 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 219 SDslu, 197 SDs, 0 SdLazy, 39 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, 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, 130 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 3353 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 incorrect! Received shutdown request...