./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a503d744e1f87de1c9c505a18eb69768c300bcf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:16,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:16,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:16,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:16,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:16,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:16,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:16,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:16,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:16,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:16,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:16,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:16,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:16,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:16,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:16,143 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:16,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:16,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:16,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:16,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:16,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:16,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:16,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:16,167 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:16,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:16,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:16,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:16,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:16,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:16,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:16,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:16,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:16,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:16,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:16,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:16,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:16,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:16,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:16,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:16,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:16,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:16,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:16,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:16,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:16,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:16,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:16,238 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:16,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:16,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:16,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:16,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:16,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:16,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:16,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:16,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:16,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:16,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:16,242 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:16,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:16,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:16,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:16,243 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:16,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:16,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:16,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:16,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:16,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:16,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:16,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:16,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:16,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:16,245 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(reach_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 -> 2a503d744e1f87de1c9c505a18eb69768c300bcf [2020-10-20 01:43:16,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:16,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:16,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:16,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:16,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:16,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-10-20 01:43:16,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8986a9c6f/80ea7c8cd59841b7ba67ed5e9e9b1550/FLAGde3d6695f [2020-10-20 01:43:17,105 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:17,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2020-10-20 01:43:17,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8986a9c6f/80ea7c8cd59841b7ba67ed5e9e9b1550/FLAGde3d6695f [2020-10-20 01:43:17,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8986a9c6f/80ea7c8cd59841b7ba67ed5e9e9b1550 [2020-10-20 01:43:17,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:17,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:17,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:17,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:17,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:17,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eac888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:17, skipping insertion in model container [2020-10-20 01:43:17,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:17" (1/1) ... [2020-10-20 01:43:17,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:17,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:17,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:17,921 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:17,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:18,039 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:18,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18 WrapperNode [2020-10-20 01:43:18,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:18,042 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:18,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:18,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:18,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:18,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:18,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:18,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:18,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... [2020-10-20 01:43:18,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:18,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:18,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:18,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:18,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 01:43:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:19,186 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:19,187 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-10-20 01:43:19,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:19 BoogieIcfgContainer [2020-10-20 01:43:19,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:19,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:19,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:19,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:19,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:17" (1/3) ... [2020-10-20 01:43:19,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e9788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:19, skipping insertion in model container [2020-10-20 01:43:19,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:18" (2/3) ... [2020-10-20 01:43:19,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149e9788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:19, skipping insertion in model container [2020-10-20 01:43:19,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:19" (3/3) ... [2020-10-20 01:43:19,198 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-20 01:43:19,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:19,227 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:19,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:19,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:19,262 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:19,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:19,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:19,263 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:19,263 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:19,263 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:19,263 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2020-10-20 01:43:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:19,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,288 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1398271785, now seen corresponding path program 1 times [2020-10-20 01:43:19,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478572283] [2020-10-20 01:43:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:19,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478572283] [2020-10-20 01:43:19,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797421248] [2020-10-20 01:43:19,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:19,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:19,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:19,593 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2020-10-20 01:43:19,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,628 INFO L93 Difference]: Finished difference Result 169 states and 254 transitions. [2020-10-20 01:43:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:19,629 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:19,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,641 INFO L225 Difference]: With dead ends: 169 [2020-10-20 01:43:19,641 INFO L226 Difference]: Without dead ends: 82 [2020-10-20 01:43:19,645 INFO L677 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 [2020-10-20 01:43:19,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-20 01:43:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-10-20 01:43:19,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-20 01:43:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2020-10-20 01:43:19,704 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2020-10-20 01:43:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,705 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2020-10-20 01:43:19,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:19,705 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2020-10-20 01:43:19,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:19,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:19,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:19,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash 706705125, now seen corresponding path program 1 times [2020-10-20 01:43:19,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081459123] [2020-10-20 01:43:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:19,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081459123] [2020-10-20 01:43:19,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:19,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336406740] [2020-10-20 01:43:19,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,819 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2020-10-20 01:43:19,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:19,842 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2020-10-20 01:43:19,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:19,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:19,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:19,845 INFO L225 Difference]: With dead ends: 82 [2020-10-20 01:43:19,845 INFO L226 Difference]: Without dead ends: 38 [2020-10-20 01:43:19,847 INFO L677 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 [2020-10-20 01:43:19,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-20 01:43:19,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-20 01:43:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-20 01:43:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-10-20 01:43:19,854 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-10-20 01:43:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:19,854 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-10-20 01:43:19,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:19,855 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-10-20 01:43:19,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:19,856 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:19,856 INFO L422 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] [2020-10-20 01:43:19,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:19,856 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:19,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:19,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2020-10-20 01:43:19,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:19,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660512807] [2020-10-20 01:43:19,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:19,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:19,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660512807] [2020-10-20 01:43:19,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:19,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:19,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367795086] [2020-10-20 01:43:19,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:19,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:19,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:19,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:19,970 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2020-10-20 01:43:20,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,001 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2020-10-20 01:43:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:20,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,006 INFO L225 Difference]: With dead ends: 102 [2020-10-20 01:43:20,007 INFO L226 Difference]: Without dead ends: 70 [2020-10-20 01:43:20,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:20,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-20 01:43:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-20 01:43:20,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 01:43:20,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2020-10-20 01:43:20,023 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 24 [2020-10-20 01:43:20,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,023 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2020-10-20 01:43:20,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:20,023 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2020-10-20 01:43:20,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:20,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,025 INFO L422 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] [2020-10-20 01:43:20,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:20,025 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,041 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2020-10-20 01:43:20,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582277904] [2020-10-20 01:43:20,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:20,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582277904] [2020-10-20 01:43:20,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:20,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885413188] [2020-10-20 01:43:20,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:20,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:20,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:20,172 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2020-10-20 01:43:20,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,213 INFO L93 Difference]: Finished difference Result 171 states and 256 transitions. [2020-10-20 01:43:20,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:20,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-20 01:43:20,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,216 INFO L225 Difference]: With dead ends: 171 [2020-10-20 01:43:20,216 INFO L226 Difference]: Without dead ends: 111 [2020-10-20 01:43:20,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-20 01:43:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2020-10-20 01:43:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-20 01:43:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2020-10-20 01:43:20,231 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 25 [2020-10-20 01:43:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,231 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2020-10-20 01:43:20,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2020-10-20 01:43:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:43:20,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,233 INFO L422 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, 1] [2020-10-20 01:43:20,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:20,233 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,234 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2020-10-20 01:43:20,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734242419] [2020-10-20 01:43:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:20,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:20,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734242419] [2020-10-20 01:43:20,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:20,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:20,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776382066] [2020-10-20 01:43:20,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:20,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:20,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:20,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:20,382 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 5 states. [2020-10-20 01:43:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:20,587 INFO L93 Difference]: Finished difference Result 597 states and 891 transitions. [2020-10-20 01:43:20,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:20,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:43:20,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:20,595 INFO L225 Difference]: With dead ends: 597 [2020-10-20 01:43:20,595 INFO L226 Difference]: Without dead ends: 494 [2020-10-20 01:43:20,596 INFO L677 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 [2020-10-20 01:43:20,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-10-20 01:43:20,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 198. [2020-10-20 01:43:20,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-20 01:43:20,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 280 transitions. [2020-10-20 01:43:20,643 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 280 transitions. Word has length 27 [2020-10-20 01:43:20,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:20,644 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 280 transitions. [2020-10-20 01:43:20,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:20,644 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 280 transitions. [2020-10-20 01:43:20,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:43:20,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:20,651 INFO L422 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, 1, 1] [2020-10-20 01:43:20,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:20,652 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:20,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2020-10-20 01:43:20,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:20,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451522946] [2020-10-20 01:43:20,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:20,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:20,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:20,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:20,916 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:20,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:43:21,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:21 BoogieIcfgContainer [2020-10-20 01:43:21,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:21,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:21,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:21,075 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:21,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:19" (3/4) ... [2020-10-20 01:43:21,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:21,214 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:21,214 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:21,218 INFO L168 Benchmark]: Toolchain (without parser) took 3802.37 ms. Allocated memory was 35.7 MB in the beginning and 63.4 MB in the end (delta: 27.8 MB). Free memory was 9.2 MB in the beginning and 30.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,220 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 35.1 MB. Free memory was 14.5 MB in the beginning and 14.4 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.55 ms. Allocated memory was 35.7 MB in the beginning and 45.6 MB in the end (delta: 10.0 MB). Free memory was 8.3 MB in the beginning and 17.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.15 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 17.0 MB in the beginning and 28.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,221 INFO L168 Benchmark]: Boogie Preprocessor took 61.41 ms. Allocated memory is still 47.2 MB. Free memory was 28.2 MB in the beginning and 25.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,222 INFO L168 Benchmark]: RCFGBuilder took 984.02 ms. Allocated memory was 47.2 MB in the beginning and 51.4 MB in the end (delta: 4.2 MB). Free memory was 25.8 MB in the beginning and 12.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,222 INFO L168 Benchmark]: TraceAbstraction took 1884.00 ms. Allocated memory was 51.4 MB in the beginning and 59.2 MB in the end (delta: 7.9 MB). Free memory was 12.3 MB in the beginning and 11.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,223 INFO L168 Benchmark]: Witness Printer took 139.49 ms. Allocated memory was 59.2 MB in the beginning and 63.4 MB in the end (delta: 4.2 MB). Free memory was 10.4 MB in the beginning and 30.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:21,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 35.1 MB. Free memory was 14.5 MB in the beginning and 14.4 MB in the end (delta: 73.5 kB). Peak memory consumption was 73.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 621.55 ms. Allocated memory was 35.7 MB in the beginning and 45.6 MB in the end (delta: 10.0 MB). Free memory was 8.3 MB in the beginning and 17.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 86.15 ms. Allocated memory was 45.6 MB in the beginning and 47.2 MB in the end (delta: 1.6 MB). Free memory was 17.0 MB in the beginning and 28.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 61.41 ms. Allocated memory is still 47.2 MB. Free memory was 28.2 MB in the beginning and 25.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 984.02 ms. Allocated memory was 47.2 MB in the beginning and 51.4 MB in the end (delta: 4.2 MB). Free memory was 25.8 MB in the beginning and 12.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1884.00 ms. Allocated memory was 51.4 MB in the beginning and 59.2 MB in the end (delta: 7.9 MB). Free memory was 12.3 MB in the beginning and 11.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * Witness Printer took 139.49 ms. Allocated memory was 59.2 MB in the beginning and 63.4 MB in the end (delta: 4.2 MB). Free memory was 10.4 MB in the beginning and 30.2 MB in the end (delta: -19.8 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L402] int retValue_acc ; [L403] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L137] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 363 SDtfs, 337 SDslu, 290 SDs, 0 SdLazy, 56 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 302 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...