./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/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/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 [2019-10-22 08:57:16,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:16,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:16,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:16,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:16,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:16,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:16,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:16,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:16,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:16,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:16,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:16,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:16,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:16,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:16,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:16,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:16,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:16,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:16,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:16,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:16,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:16,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:16,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:16,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:16,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:16,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:16,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:16,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:16,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:16,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:16,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:16,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:16,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:16,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:16,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:16,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:16,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:16,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:16,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:16,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:16,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:16,216 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:16,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:16,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:16,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:16,225 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:16,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:16,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:16,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:16,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:16,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:16,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:16,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:16,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:16,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:16,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:16,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:16,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:16,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:16,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/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 [2019-10-22 08:57:16,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:16,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:16,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:16,270 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:16,270 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:16,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2019-10-22 08:57:16,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/data/83d08d321/9fd519073f9946198b7f7b833f9f2cfe/FLAG3e15612ad [2019-10-22 08:57:16,761 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:16,761 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2019-10-22 08:57:16,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/data/83d08d321/9fd519073f9946198b7f7b833f9f2cfe/FLAG3e15612ad [2019-10-22 08:57:17,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/data/83d08d321/9fd519073f9946198b7f7b833f9f2cfe [2019-10-22 08:57:17,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:17,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:17,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:17,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:17,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:17,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3234252b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17, skipping insertion in model container [2019-10-22 08:57:17,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,141 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:17,200 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:17,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:17,636 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:17,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:17,732 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:17,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17 WrapperNode [2019-10-22 08:57:17,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:17,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:17,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:17,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:17,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:17,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:17,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:17,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:17,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... [2019-10-22 08:57:17,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:17,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:17,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:17,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:17,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/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 [2019-10-22 08:57:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:17,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 08:57:17,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:18,640 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:18,640 INFO L284 CfgBuilder]: Removed 108 assume(true) statements. [2019-10-22 08:57:18,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:18 BoogieIcfgContainer [2019-10-22 08:57:18,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:18,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:18,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:18,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:18,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:17" (1/3) ... [2019-10-22 08:57:18,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca69cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:18, skipping insertion in model container [2019-10-22 08:57:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:17" (2/3) ... [2019-10-22 08:57:18,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cca69cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:18, skipping insertion in model container [2019-10-22 08:57:18,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:18" (3/3) ... [2019-10-22 08:57:18,652 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2019-10-22 08:57:18,661 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:18,668 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:57:18,681 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:57:18,712 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:18,712 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:18,712 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:18,712 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:18,712 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:18,713 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:18,713 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:18,713 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:18,725 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-10-22 08:57:18,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 08:57:18,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:18,731 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:18,733 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:18,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:18,738 INFO L82 PathProgramCache]: Analyzing trace with hash -93315333, now seen corresponding path program 1 times [2019-10-22 08:57:18,743 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:18,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430784623] [2019-10-22 08:57:18,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,744 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:18,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:18,971 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430784623] [2019-10-22 08:57:18,972 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:18,972 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:18,972 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098105342] [2019-10-22 08:57:18,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:18,976 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:18,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:18,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:18,988 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-10-22 08:57:19,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:19,010 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2019-10-22 08:57:19,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:19,011 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-10-22 08:57:19,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:19,020 INFO L225 Difference]: With dead ends: 160 [2019-10-22 08:57:19,020 INFO L226 Difference]: Without dead ends: 79 [2019-10-22 08:57:19,023 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 [2019-10-22 08:57:19,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-10-22 08:57:19,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-10-22 08:57:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-10-22 08:57:19,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2019-10-22 08:57:19,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2019-10-22 08:57:19,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:19,058 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2019-10-22 08:57:19,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-10-22 08:57:19,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:57:19,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:19,060 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:19,060 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:19,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,060 INFO L82 PathProgramCache]: Analyzing trace with hash -1004346086, now seen corresponding path program 1 times [2019-10-22 08:57:19,061 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172507576] [2019-10-22 08:57:19,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:19,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172507576] [2019-10-22 08:57:19,140 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:19,140 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:19,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912514573] [2019-10-22 08:57:19,142 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:19,142 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:19,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:19,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:19,143 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2019-10-22 08:57:19,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:19,165 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2019-10-22 08:57:19,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:19,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 08:57:19,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:19,167 INFO L225 Difference]: With dead ends: 79 [2019-10-22 08:57:19,168 INFO L226 Difference]: Without dead ends: 37 [2019-10-22 08:57:19,169 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 [2019-10-22 08:57:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-10-22 08:57:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-10-22 08:57:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-10-22 08:57:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-10-22 08:57:19,174 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2019-10-22 08:57:19,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:19,174 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-10-22 08:57:19,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:19,174 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-10-22 08:57:19,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-10-22 08:57:19,175 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:19,175 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] [2019-10-22 08:57:19,175 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,176 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2019-10-22 08:57:19,176 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571040361] [2019-10-22 08:57:19,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:19,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571040361] [2019-10-22 08:57:19,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:19,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:19,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425540779] [2019-10-22 08:57:19,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:19,295 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:19,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:19,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:19,296 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2019-10-22 08:57:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:19,331 INFO L93 Difference]: Finished difference Result 99 states and 144 transitions. [2019-10-22 08:57:19,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:19,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-10-22 08:57:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:19,332 INFO L225 Difference]: With dead ends: 99 [2019-10-22 08:57:19,332 INFO L226 Difference]: Without dead ends: 68 [2019-10-22 08:57:19,333 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 [2019-10-22 08:57:19,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-10-22 08:57:19,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2019-10-22 08:57:19,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-10-22 08:57:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2019-10-22 08:57:19,340 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 24 [2019-10-22 08:57:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:19,340 INFO L462 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2019-10-22 08:57:19,341 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2019-10-22 08:57:19,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:57:19,341 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:19,342 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] [2019-10-22 08:57:19,342 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:19,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2019-10-22 08:57:19,342 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001996595] [2019-10-22 08:57:19,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,343 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:19,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001996595] [2019-10-22 08:57:19,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:19,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:57:19,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235195826] [2019-10-22 08:57:19,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:57:19,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:19,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:57:19,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:57:19,409 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 5 states. [2019-10-22 08:57:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:19,596 INFO L93 Difference]: Finished difference Result 348 states and 530 transitions. [2019-10-22 08:57:19,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 08:57:19,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-10-22 08:57:19,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:19,599 INFO L225 Difference]: With dead ends: 348 [2019-10-22 08:57:19,599 INFO L226 Difference]: Without dead ends: 290 [2019-10-22 08:57:19,600 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 [2019-10-22 08:57:19,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-10-22 08:57:19,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 116. [2019-10-22 08:57:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-22 08:57:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2019-10-22 08:57:19,616 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 25 [2019-10-22 08:57:19,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:19,616 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2019-10-22 08:57:19,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:57:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2019-10-22 08:57:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:57:19,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:19,618 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] [2019-10-22 08:57:19,618 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:19,618 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2019-10-22 08:57:19,618 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:19,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564736871] [2019-10-22 08:57:19,619 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,619 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:19,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:20,319 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:20,320 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:20,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:20 BoogieIcfgContainer [2019-10-22 08:57:20,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:20,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:20,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:20,407 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:20,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:18" (3/4) ... [2019-10-22 08:57:20,409 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:57:20,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0f87eb30-c650-4e84-abf2-06ddc5f79216/bin/uautomizer/witness.graphml [2019-10-22 08:57:20,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:20,511 INFO L168 Benchmark]: Toolchain (without parser) took 3385.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 250.6 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -296.2 MB). Peak memory consumption was 271.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,512 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:20,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -227.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,513 INFO L168 Benchmark]: Boogie Preprocessor took 32.06 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. [2019-10-22 08:57:20,513 INFO L168 Benchmark]: RCFGBuilder took 821.20 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,514 INFO L168 Benchmark]: TraceAbstraction took 1763.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.3 MB in the end (delta: 222.5 MB). Peak memory consumption was 222.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,514 INFO L168 Benchmark]: Witness Printer took 103.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 876.3 MB in the beginning and 1.2 GB in the end (delta: -359.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:20,516 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 606.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -227.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.06 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 821.20 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1763.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 876.3 MB in the end (delta: 222.5 MB). Peak memory consumption was 222.5 MB. Max. memory is 11.5 GB. * Witness Printer took 103.32 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 876.3 MB in the beginning and 1.2 GB in the end (delta: -359.1 MB). Peak memory consumption was 20.5 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: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 311 SDslu, 245 SDs, 0 SdLazy, 46 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 0.5s 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...