./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b18fc9f0044b48e81511337a91deb94a0dfeec26 .......................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-26 02:56:39,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:56:39,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:56:39,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:56:39,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:56:39,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:56:39,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:56:39,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:56:39,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:56:39,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:56:39,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:56:39,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:56:39,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:56:39,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:56:39,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:56:39,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:56:39,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:56:39,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:56:39,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:56:39,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:56:39,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:56:39,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:56:39,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:56:39,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:56:39,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:56:39,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:56:39,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:56:39,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:56:39,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:56:39,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:56:39,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:56:39,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:56:39,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:56:39,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:56:39,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:56:39,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:56:39,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:56:39,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:56:39,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:56:39,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:56:39,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:56:39,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:56:39,253 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:56:39,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:56:39,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:56:39,264 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:56:39,264 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:56:39,265 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:56:39,266 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:56:39,266 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:56:39,266 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:56:39,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:56:39,266 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:56:39,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:56:39,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:56:39,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:56:39,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:56:39,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:56:39,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:56:39,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:56:39,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:56:39,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:56:39,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:56:39,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:56:39,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:56:39,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:56:39,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:56:39,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:56:39,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan 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 -> Taipan 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 -> b18fc9f0044b48e81511337a91deb94a0dfeec26 [2019-11-26 02:56:39,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:56:39,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:56:39,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:56:39,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:56:39,493 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:56:39,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-11-26 02:56:39,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/data/1053042fa/2216cf927be24edeadfe48354a64a597/FLAG587f58d7a [2019-11-26 02:56:40,050 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:56:40,052 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2019-11-26 02:56:40,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/data/1053042fa/2216cf927be24edeadfe48354a64a597/FLAG587f58d7a [2019-11-26 02:56:40,391 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/data/1053042fa/2216cf927be24edeadfe48354a64a597 [2019-11-26 02:56:40,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:56:40,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:56:40,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:40,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:56:40,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:56:40,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:40,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142503a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40, skipping insertion in model container [2019-11-26 02:56:40,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:40,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:56:40,453 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:56:40,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:40,829 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:56:40,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:40,940 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:56:40,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40 WrapperNode [2019-11-26 02:56:40,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:40,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:40,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:56:40,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:56:40,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:40,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:41,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:56:41,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:56:41,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:56:41,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... [2019-11-26 02:56:41,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:56:41,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:56:41,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:56:41,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:56:41,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/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 [2019-11-26 02:56:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:56:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:56:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:56:42,983 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:56:42,984 INFO L284 CfgBuilder]: Removed 120 assume(true) statements. [2019-11-26 02:56:42,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:42 BoogieIcfgContainer [2019-11-26 02:56:42,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:56:42,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:56:42,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:56:42,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:56:42,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:56:40" (1/3) ... [2019-11-26 02:56:42,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25893a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:42, skipping insertion in model container [2019-11-26 02:56:42,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:40" (2/3) ... [2019-11-26 02:56:42,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25893a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:42, skipping insertion in model container [2019-11-26 02:56:42,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:42" (3/3) ... [2019-11-26 02:56:42,999 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2019-11-26 02:56:43,009 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:56:43,017 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-26 02:56:43,029 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-26 02:56:43,056 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:56:43,057 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:56:43,057 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:56:43,057 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:56:43,057 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:56:43,058 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:56:43,058 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:56:43,058 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:56:43,079 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-11-26 02:56:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:56:43,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:43,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:43,092 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:56:43,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:43,098 INFO L82 PathProgramCache]: Analyzing trace with hash 2070469461, now seen corresponding path program 1 times [2019-11-26 02:56:43,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:43,109 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6738860] [2019-11-26 02:56:43,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:43,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6738860] [2019-11-26 02:56:43,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:56:43,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:56:43,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522724045] [2019-11-26 02:56:43,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:56:43,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:56:43,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:56:43,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:56:43,673 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-11-26 02:56:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:56:43,870 INFO L93 Difference]: Finished difference Result 73 states and 105 transitions. [2019-11-26 02:56:43,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:56:43,872 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:56:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:56:43,882 INFO L225 Difference]: With dead ends: 73 [2019-11-26 02:56:43,882 INFO L226 Difference]: Without dead ends: 44 [2019-11-26 02:56:43,885 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:56:43,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-26 02:56:43,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2019-11-26 02:56:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-26 02:56:43,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-11-26 02:56:43,927 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2019-11-26 02:56:43,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:56:43,928 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-11-26 02:56:43,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:56:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-11-26 02:56:43,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:56:43,929 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:56:43,929 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-26 02:56:43,930 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:56:43,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:43,930 INFO L82 PathProgramCache]: Analyzing trace with hash -697728438, now seen corresponding path program 1 times [2019-11-26 02:56:43,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:56:43,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433136883] [2019-11-26 02:56:43,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:56:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:56:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:56:44,277 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:56:44,277 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:56:44,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:56:44 BoogieIcfgContainer [2019-11-26 02:56:44,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:56:44,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:56:44,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:56:44,378 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:56:44,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:42" (3/4) ... [2019-11-26 02:56:44,381 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 02:56:44,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a0663afb-ac86-4a3f-b789-8744b4a4cfaf/bin/utaipan/witness.graphml [2019-11-26 02:56:44,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:56:44,478 INFO L168 Benchmark]: Toolchain (without parser) took 4082.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 948.7 MB in the beginning and 817.6 MB in the end (delta: 131.1 MB). Peak memory consumption was 257.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,478 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:44,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:44,480 INFO L168 Benchmark]: Boogie Preprocessor took 67.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,480 INFO L168 Benchmark]: RCFGBuilder took 1892.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.4 MB in the end (delta: 164.0 MB). Peak memory consumption was 164.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,481 INFO L168 Benchmark]: TraceAbstraction took 1390.66 ms. Allocated memory is still 1.2 GB. Free memory was 925.4 MB in the beginning and 824.4 MB in the end (delta: 101.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,481 INFO L168 Benchmark]: Witness Printer took 98.58 ms. Allocated memory is still 1.2 GB. Free memory was 824.4 MB in the beginning and 817.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:44,483 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 545.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1892.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.4 MB in the end (delta: 164.0 MB). Peak memory consumption was 164.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1390.66 ms. Allocated memory is still 1.2 GB. Free memory was 925.4 MB in the beginning and 824.4 MB in the end (delta: 101.0 MB). Peak memory consumption was 101.0 MB. Max. memory is 11.5 GB. * Witness Printer took 98.58 ms. Allocated memory is still 1.2 GB. Free memory was 824.4 MB in the beginning and 817.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L498] int pumpRunning = 0; [L499] int systemActive = 1; [L693] int waterLevel = 1; [L694] int methaneLevelCritical = 0; [L851] int cleanupTimeShifts = 4; [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L924] int retValue_acc ; [L925] int tmp ; [L842] int retValue_acc ; [L845] retValue_acc = 1 [L846] return (retValue_acc); [L931] tmp = valid_product() [L933] COND TRUE \read(tmp) [L422] int splverifierCounter ; [L423] int tmp ; [L424] int tmp___0 ; [L425] int tmp___1 ; [L426] int tmp___2 ; [L429] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) [L711] COND TRUE waterLevel < 2 [L712] waterLevel = waterLevel + 1 [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND FALSE !(\read(tmp___0)) [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___2)) [L467] tmp___1 = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp___1)) [L506] COND FALSE !(\read(pumpRunning)) [L513] COND TRUE \read(systemActive) [L535] int tmp ; [L538] COND TRUE ! pumpRunning [L650] int retValue_acc ; [L651] int tmp ; [L652] int tmp___0 ; [L773] int retValue_acc ; [L776] COND FALSE !(waterLevel < 2) [L780] retValue_acc = 0 [L781] return (retValue_acc); [L656] tmp = isHighWaterSensorDry() [L658] COND FALSE !(\read(tmp)) [L661] tmp___0 = 1 [L663] retValue_acc = tmp___0 [L664] return (retValue_acc); [L540] tmp = isHighWaterLevel() [L542] COND TRUE \read(tmp) [L569] int tmp ; [L594] int retValue_acc ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); [L598] retValue_acc = isMethaneLevelCritical() [L600] return (retValue_acc); [L573] tmp = isMethaneAlarm() [L575] COND FALSE !(\read(tmp)) [L563] pumpRunning = 1 [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); [L793] tmp = isMethaneLevelCritical() [L795] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE splverifierCounter < 4 [L439] tmp = __VERIFIER_nondet_int() [L441] COND TRUE \read(tmp) [L711] COND FALSE !(waterLevel < 2) [L449] tmp___0 = __VERIFIER_nondet_int() [L451] COND TRUE \read(tmp___0) [L723] COND FALSE !(\read(methaneLevelCritical)) [L726] methaneLevelCritical = 1 [L459] tmp___2 = __VERIFIER_nondet_int() [L461] COND FALSE !(\read(tmp___2)) [L467] tmp___1 = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp___1)) [L506] COND TRUE \read(pumpRunning) [L699] COND TRUE waterLevel > 0 [L700] waterLevel = waterLevel - 1 [L513] COND TRUE \read(systemActive) [L535] int tmp ; [L538] COND FALSE !(! pumpRunning) [L788] int tmp ; [L789] int tmp___0 ; [L732] int retValue_acc ; [L735] retValue_acc = methaneLevelCritical [L736] return (retValue_acc); [L793] tmp = isMethaneLevelCritical() [L795] COND TRUE \read(tmp) [L605] int retValue_acc ; [L608] retValue_acc = pumpRunning [L609] return (retValue_acc); [L797] tmp___0 = isPumpRunning() [L799] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L44] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 36 SDslu, 54 SDs, 0 SdLazy, 51 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...