./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/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 bccdbc1fe3b58d50f3d739d9520ef3bab8ad5778 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-cad4683 [2019-11-15 23:05:42,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:05:42,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:05:42,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:05:42,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:05:42,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:05:42,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:05:42,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:05:42,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:05:42,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:05:42,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:05:42,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:05:42,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:05:42,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:05:42,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:05:42,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:05:42,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:05:42,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:05:42,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:05:42,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:05:42,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:05:42,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:05:42,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:05:42,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:05:42,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:05:42,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:05:42,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:05:42,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:05:42,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:05:42,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:05:42,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:05:42,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:05:42,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:05:42,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:05:42,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:05:42,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:05:42,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:05:42,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:05:42,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:05:42,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:05:42,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:05:42,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:05:42,230 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:05:42,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:05:42,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:05:42,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:05:42,232 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:05:42,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:05:42,233 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:05:42,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:05:42,233 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:05:42,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:05:42,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:05:42,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:05:42,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:05:42,234 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:05:42,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:05:42,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:05:42,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:05:42,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:05:42,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:05:42,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:05:42,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:05:42,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:05:42,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:05:42,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:05:42,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:05:42,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:05:42,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:05:42,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:05:42,238 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_5d67470d-0f3b-446b-ad8d-620a613fdcbf/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 -> bccdbc1fe3b58d50f3d739d9520ef3bab8ad5778 [2019-11-15 23:05:42,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:05:42,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:05:42,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:05:42,277 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:05:42,278 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:05:42,278 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2019-11-15 23:05:42,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/data/46240f9c3/8d9aa17e97ee4e9f8a66d207d7f4d1e1/FLAGc56f58800 [2019-11-15 23:05:42,712 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:05:42,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2019-11-15 23:05:42,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/data/46240f9c3/8d9aa17e97ee4e9f8a66d207d7f4d1e1/FLAGc56f58800 [2019-11-15 23:05:43,049 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/data/46240f9c3/8d9aa17e97ee4e9f8a66d207d7f4d1e1 [2019-11-15 23:05:43,052 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:05:43,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:05:43,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:05:43,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:05:43,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:05:43,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515f18d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43, skipping insertion in model container [2019-11-15 23:05:43,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,068 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:05:43,128 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:05:43,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:05:43,454 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:05:43,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:05:43,619 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:05:43,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43 WrapperNode [2019-11-15 23:05:43,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:05:43,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:05:43,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:05:43,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:05:43,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:05:43,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:05:43,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:05:43,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:05:43,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,705 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... [2019-11-15 23:05:43,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:05:43,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:05:43,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:05:43,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:05:43,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:05:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:05:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 23:05:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:05:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:05:44,598 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:05:44,599 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-11-15 23:05:44,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:05:44 BoogieIcfgContainer [2019-11-15 23:05:44,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:05:44,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:05:44,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:05:44,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:05:44,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:05:43" (1/3) ... [2019-11-15 23:05:44,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56aa4e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:05:44, skipping insertion in model container [2019-11-15 23:05:44,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:05:43" (2/3) ... [2019-11-15 23:05:44,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56aa4e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:05:44, skipping insertion in model container [2019-11-15 23:05:44,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:05:44" (3/3) ... [2019-11-15 23:05:44,606 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2019-11-15 23:05:44,614 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:05:44,621 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-15 23:05:44,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-15 23:05:44,670 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:05:44,670 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:05:44,670 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:05:44,671 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:05:44,671 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:05:44,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:05:44,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:05:44,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:05:44,692 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-11-15 23:05:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-15 23:05:44,699 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:05:44,700 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:05:44,702 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:05:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:05:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash -93315333, now seen corresponding path program 1 times [2019-11-15 23:05:44,716 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:05:44,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119495900] [2019-11-15 23:05:44,717 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:44,717 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:44,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:05:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:05:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:05:44,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119495900] [2019-11-15 23:05:44,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:05:44,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 23:05:44,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966010525] [2019-11-15 23:05:44,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 23:05:44,935 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:05:44,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 23:05:44,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 23:05:44,950 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-11-15 23:05:44,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:05:44,996 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2019-11-15 23:05:44,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 23:05:44,998 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-15 23:05:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:05:45,011 INFO L225 Difference]: With dead ends: 160 [2019-11-15 23:05:45,011 INFO L226 Difference]: Without dead ends: 79 [2019-11-15 23:05:45,013 INFO L600 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 [2019-11-15 23:05:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-11-15 23:05:45,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-11-15 23:05:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-15 23:05:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2019-11-15 23:05:45,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2019-11-15 23:05:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:05:45,058 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2019-11-15 23:05:45,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 23:05:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-11-15 23:05:45,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-15 23:05:45,059 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:05:45,060 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:05:45,060 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:05:45,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:05:45,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1004346086, now seen corresponding path program 1 times [2019-11-15 23:05:45,061 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:05:45,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122776120] [2019-11-15 23:05:45,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:05:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:05:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:05:45,184 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122776120] [2019-11-15 23:05:45,184 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:05:45,184 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:05:45,185 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461624931] [2019-11-15 23:05:45,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:05:45,186 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:05:45,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:05:45,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:05:45,187 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2019-11-15 23:05:45,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:05:45,200 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2019-11-15 23:05:45,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:05:45,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-15 23:05:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:05:45,202 INFO L225 Difference]: With dead ends: 79 [2019-11-15 23:05:45,202 INFO L226 Difference]: Without dead ends: 37 [2019-11-15 23:05:45,203 INFO L600 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 [2019-11-15 23:05:45,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-15 23:05:45,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-11-15 23:05:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-15 23:05:45,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-11-15 23:05:45,210 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2019-11-15 23:05:45,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:05:45,211 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-11-15 23:05:45,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:05:45,211 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-11-15 23:05:45,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-15 23:05:45,212 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:05:45,212 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:05:45,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:05:45,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:05:45,213 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2019-11-15 23:05:45,213 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:05:45,213 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925987796] [2019-11-15 23:05:45,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,214 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:05:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:05:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:05:45,305 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925987796] [2019-11-15 23:05:45,305 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:05:45,305 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-15 23:05:45,306 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531871571] [2019-11-15 23:05:45,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-15 23:05:45,306 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:05:45,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 23:05:45,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 23:05:45,307 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2019-11-15 23:05:45,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:05:45,351 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2019-11-15 23:05:45,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 23:05:45,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-15 23:05:45,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:05:45,355 INFO L225 Difference]: With dead ends: 99 [2019-11-15 23:05:45,355 INFO L226 Difference]: Without dead ends: 68 [2019-11-15 23:05:45,356 INFO L600 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 [2019-11-15 23:05:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-15 23:05:45,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2019-11-15 23:05:45,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-11-15 23:05:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2019-11-15 23:05:45,373 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 24 [2019-11-15 23:05:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:05:45,374 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2019-11-15 23:05:45,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-15 23:05:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2019-11-15 23:05:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-15 23:05:45,375 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:05:45,375 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:05:45,375 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:05:45,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:05:45,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2019-11-15 23:05:45,375 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:05:45,375 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150433460] [2019-11-15 23:05:45,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,376 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:05:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:05:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:05:45,496 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150433460] [2019-11-15 23:05:45,496 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:05:45,496 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:05:45,497 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289602980] [2019-11-15 23:05:45,497 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:05:45,497 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:05:45,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:05:45,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:05:45,498 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 5 states. [2019-11-15 23:05:45,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:05:45,634 INFO L93 Difference]: Finished difference Result 348 states and 530 transitions. [2019-11-15 23:05:45,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:05:45,635 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-15 23:05:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:05:45,638 INFO L225 Difference]: With dead ends: 348 [2019-11-15 23:05:45,638 INFO L226 Difference]: Without dead ends: 290 [2019-11-15 23:05:45,639 INFO L600 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 [2019-11-15 23:05:45,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-11-15 23:05:45,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 116. [2019-11-15 23:05:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-15 23:05:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2019-11-15 23:05:45,658 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 25 [2019-11-15 23:05:45,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:05:45,658 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2019-11-15 23:05:45,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:05:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2019-11-15 23:05:45,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-15 23:05:45,660 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:05:45,660 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 23:05:45,661 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:05:45,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:05:45,661 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2019-11-15 23:05:45,661 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:05:45,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259217576] [2019-11-15 23:05:45,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,662 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:05:45,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:05:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:05:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:05:46,458 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:05:46,458 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:05:46,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:05:46 BoogieIcfgContainer [2019-11-15 23:05:46,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:05:46,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:05:46,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:05:46,552 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:05:46,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:05:44" (3/4) ... [2019-11-15 23:05:46,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 23:05:46,699 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d67470d-0f3b-446b-ad8d-620a613fdcbf/bin/uautomizer/witness.graphml [2019-11-15 23:05:46,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:05:46,706 INFO L168 Benchmark]: Toolchain (without parser) took 3653.23 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 246.9 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -287.1 MB). Peak memory consumption was 270.4 MB. Max. memory is 11.5 GB. [2019-11-15 23:05:46,707 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:05:46,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:05:46,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:05:46,708 INFO L168 Benchmark]: Boogie Preprocessor took 53.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:05:46,708 INFO L168 Benchmark]: RCFGBuilder took 866.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:05:46,709 INFO L168 Benchmark]: TraceAbstraction took 1950.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.9 MB in the end (delta: 224.3 MB). Peak memory consumption was 224.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:05:46,709 INFO L168 Benchmark]: Witness Printer took 153.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.7 MB). Free memory was 883.9 MB in the beginning and 1.2 GB in the end (delta: -348.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:05:46,711 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 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 565.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.3 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 866.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 58.8 MB). Peak memory consumption was 58.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1950.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 883.9 MB in the end (delta: 224.3 MB). Peak memory consumption was 224.3 MB. Max. memory is 11.5 GB. * Witness Printer took 153.10 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.7 MB). Free memory was 883.9 MB in the beginning and 1.2 GB in the end (delta: -348.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L296] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L298] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND TRUE \read(tmp___2) [L278] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L97] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L104] COND TRUE \read(systemActive) [L126] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L129] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L545] __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, 83 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 311 SDslu, 245 SDs, 0 SdLazy, 46 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred 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, 178 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 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...