./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product10.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_spec4_product10.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 2b192e470c41b75933f65965ba2800987829e5a8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:43:50,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:50,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:50,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:50,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:50,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:50,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:50,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:50,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:50,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:50,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:50,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:50,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:50,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:50,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:50,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:50,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:50,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:50,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:50,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:50,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:50,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:50,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:50,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:50,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:50,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:50,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:50,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:50,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:50,173 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:50,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:50,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:50,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:50,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:50,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:50,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:50,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:50,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:50,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:50,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:50,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:50,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:50,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:50,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:50,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:50,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:50,205 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:50,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:50,205 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:50,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:50,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:50,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:50,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:50,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:50,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:50,206 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:50,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:50,207 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:50,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:50,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:50,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:50,211 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:50,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:50,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:50,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:50,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:50,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:50,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:50,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:50,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:50,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:50,213 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 -> 2b192e470c41b75933f65965ba2800987829e5a8 [2020-10-20 01:43:50,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:50,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:50,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:50,446 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:50,447 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:50,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-10-20 01:43:50,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc22ccbb/63b8fcdec8524f13a054c1b9fe36c1f7/FLAG0bff7ad85 [2020-10-20 01:43:51,037 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:51,044 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product10.cil.c [2020-10-20 01:43:51,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc22ccbb/63b8fcdec8524f13a054c1b9fe36c1f7/FLAG0bff7ad85 [2020-10-20 01:43:51,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6dc22ccbb/63b8fcdec8524f13a054c1b9fe36c1f7 [2020-10-20 01:43:51,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:51,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:51,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:51,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:51,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:51,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:51,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37067bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51, skipping insertion in model container [2020-10-20 01:43:51,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:51,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:51,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:51,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:51,851 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:51,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:51,985 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:51,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51 WrapperNode [2020-10-20 01:43:51,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:51,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:51,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:51,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:51,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:52,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:52,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:52,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:52,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (1/1) ... [2020-10-20 01:43:52,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:52,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:52,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:52,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:52,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (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 01:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:52,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:53,075 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:53,076 INFO L298 CfgBuilder]: Removed 74 assume(true) statements. [2020-10-20 01:43:53,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:53 BoogieIcfgContainer [2020-10-20 01:43:53,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:53,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:53,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:53,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:53,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:51" (1/3) ... [2020-10-20 01:43:53,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414784aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:53, skipping insertion in model container [2020-10-20 01:43:53,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:51" (2/3) ... [2020-10-20 01:43:53,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414784aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:53, skipping insertion in model container [2020-10-20 01:43:53,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:53" (3/3) ... [2020-10-20 01:43:53,094 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2020-10-20 01:43:53,106 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:53,115 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:53,130 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:53,161 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:53,161 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:53,162 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:53,162 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:53,163 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:53,164 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:53,165 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:53,165 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:53,186 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-20 01:43:53,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:43:53,193 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:53,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:53,194 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:53,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:53,199 INFO L82 PathProgramCache]: Analyzing trace with hash 436617332, now seen corresponding path program 1 times [2020-10-20 01:43:53,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:53,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714928691] [2020-10-20 01:43:53,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:53,502 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 01:43:53,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714928691] [2020-10-20 01:43:53,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:53,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:53,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368989189] [2020-10-20 01:43:53,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:53,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:53,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:53,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:53,526 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2020-10-20 01:43:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:53,555 INFO L93 Difference]: Finished difference Result 111 states and 164 transitions. [2020-10-20 01:43:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:53,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:43:53,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:53,568 INFO L225 Difference]: With dead ends: 111 [2020-10-20 01:43:53,568 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 01:43:53,572 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 01:43:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 01:43:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 01:43:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 01:43:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 72 transitions. [2020-10-20 01:43:53,615 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 72 transitions. Word has length 16 [2020-10-20 01:43:53,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:53,616 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 72 transitions. [2020-10-20 01:43:53,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:53,617 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2020-10-20 01:43:53,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:43:53,618 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:53,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:53,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:53,619 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:53,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:53,619 INFO L82 PathProgramCache]: Analyzing trace with hash -610139565, now seen corresponding path program 1 times [2020-10-20 01:43:53,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:53,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894784998] [2020-10-20 01:43:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:53,803 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 01:43:53,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894784998] [2020-10-20 01:43:53,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:53,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:53,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501479179] [2020-10-20 01:43:53,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:53,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:53,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:53,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:53,808 INFO L87 Difference]: Start difference. First operand 53 states and 72 transitions. Second operand 3 states. [2020-10-20 01:43:53,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:53,818 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2020-10-20 01:43:53,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:53,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:43:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:53,819 INFO L225 Difference]: With dead ends: 53 [2020-10-20 01:43:53,820 INFO L226 Difference]: Without dead ends: 27 [2020-10-20 01:43:53,821 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 01:43:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-20 01:43:53,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-20 01:43:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-20 01:43:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-10-20 01:43:53,826 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 17 [2020-10-20 01:43:53,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:53,827 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-10-20 01:43:53,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-10-20 01:43:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:43:53,828 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:53,828 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] [2020-10-20 01:43:53,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:53,829 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:53,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1992386864, now seen corresponding path program 1 times [2020-10-20 01:43:53,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:53,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702720840] [2020-10-20 01:43:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:53,956 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 01:43:53,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702720840] [2020-10-20 01:43:53,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:53,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:43:53,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363515457] [2020-10-20 01:43:53,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:43:53,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:53,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:43:53,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:53,959 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 8 states. [2020-10-20 01:43:54,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:54,320 INFO L93 Difference]: Finished difference Result 142 states and 221 transitions. [2020-10-20 01:43:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:43:54,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-20 01:43:54,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:54,325 INFO L225 Difference]: With dead ends: 142 [2020-10-20 01:43:54,325 INFO L226 Difference]: Without dead ends: 121 [2020-10-20 01:43:54,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:43:54,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-10-20 01:43:54,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 60. [2020-10-20 01:43:54,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:54,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 85 transitions. [2020-10-20 01:43:54,341 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 85 transitions. Word has length 22 [2020-10-20 01:43:54,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:54,341 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 85 transitions. [2020-10-20 01:43:54,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:43:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 85 transitions. [2020-10-20 01:43:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-20 01:43:54,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:54,346 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] [2020-10-20 01:43:54,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:54,346 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:54,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:54,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1296861074, now seen corresponding path program 1 times [2020-10-20 01:43:54,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:54,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913598810] [2020-10-20 01:43:54,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:54,422 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 01:43:54,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913598810] [2020-10-20 01:43:54,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:54,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:54,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260974086] [2020-10-20 01:43:54,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:54,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:54,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:54,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:54,425 INFO L87 Difference]: Start difference. First operand 60 states and 85 transitions. Second operand 3 states. [2020-10-20 01:43:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:54,442 INFO L93 Difference]: Finished difference Result 95 states and 136 transitions. [2020-10-20 01:43:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:54,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-20 01:43:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:54,445 INFO L225 Difference]: With dead ends: 95 [2020-10-20 01:43:54,445 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 01:43:54,446 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 01:43:54,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 01:43:54,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 01:43:54,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 01:43:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2020-10-20 01:43:54,464 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 23 [2020-10-20 01:43:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:54,465 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2020-10-20 01:43:54,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:54,465 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2020-10-20 01:43:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-20 01:43:54,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:54,468 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:54,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:54,469 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:54,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:54,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1471456368, now seen corresponding path program 1 times [2020-10-20 01:43:54,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:54,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951283287] [2020-10-20 01:43:54,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:54,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951283287] [2020-10-20 01:43:54,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021899294] [2020-10-20 01:43:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:43:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:54,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:43:54,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:43:54,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:54,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:43:54,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:43:54,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436405770] [2020-10-20 01:43:54,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:43:54,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:54,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:43:54,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:54,823 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand 4 states. [2020-10-20 01:43:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:54,927 INFO L93 Difference]: Finished difference Result 73 states and 100 transitions. [2020-10-20 01:43:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:43:54,927 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-10-20 01:43:54,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:54,928 INFO L225 Difference]: With dead ends: 73 [2020-10-20 01:43:54,928 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:43:54,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:54,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:43:54,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:43:54,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:43:54,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:43:54,930 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2020-10-20 01:43:54,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:54,930 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:43:54,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:43:54,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:43:54,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:43:55,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:43:55,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:43:55,582 INFO L274 CegarLoopResult]: For program point L762(lines 762 766) no Hoare annotation was computed. [2020-10-20 01:43:55,583 INFO L274 CegarLoopResult]: For program point L729(lines 729 742) no Hoare annotation was computed. [2020-10-20 01:43:55,583 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,583 INFO L274 CegarLoopResult]: For program point L762-3(lines 762 766) no Hoare annotation was computed. [2020-10-20 01:43:55,583 INFO L274 CegarLoopResult]: For program point L762-6(lines 762 766) no Hoare annotation was computed. [2020-10-20 01:43:55,583 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,584 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,584 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,584 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:43:55,584 INFO L274 CegarLoopResult]: For program point L53(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:43:55,584 INFO L270 CegarLoopResult]: At program point L53-1(lines 1 869) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (<= 2 ~waterLevel~0) .cse0 .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))))) [2020-10-20 01:43:55,585 INFO L274 CegarLoopResult]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:43:55,585 INFO L270 CegarLoopResult]: At program point L53-3(lines 1 869) the Hoare annotation is: false [2020-10-20 01:43:55,585 INFO L274 CegarLoopResult]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2020-10-20 01:43:55,585 INFO L270 CegarLoopResult]: At program point L53-5(lines 1 869) the Hoare annotation is: false [2020-10-20 01:43:55,586 INFO L270 CegarLoopResult]: At program point L747(lines 698 748) the Hoare annotation is: false [2020-10-20 01:43:55,586 INFO L270 CegarLoopResult]: At program point L831(lines 826 834) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2020-10-20 01:43:55,586 INFO L270 CegarLoopResult]: At program point L831-1(lines 826 834) the Hoare annotation is: false [2020-10-20 01:43:55,587 INFO L270 CegarLoopResult]: At program point L831-2(lines 826 834) the Hoare annotation is: false [2020-10-20 01:43:55,587 INFO L274 CegarLoopResult]: For program point L700(lines 699 746) no Hoare annotation was computed. [2020-10-20 01:43:55,587 INFO L270 CegarLoopResult]: At program point L866(lines 861 869) the Hoare annotation is: (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:55,587 INFO L274 CegarLoopResult]: For program point L701(lines 701 705) no Hoare annotation was computed. [2020-10-20 01:43:55,588 INFO L274 CegarLoopResult]: For program point L57(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:43:55,588 INFO L274 CegarLoopResult]: For program point L536(lines 536 543) no Hoare annotation was computed. [2020-10-20 01:43:55,588 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:43:55,588 INFO L277 CegarLoopResult]: At program point L536-1(lines 536 543) the Hoare annotation is: true [2020-10-20 01:43:55,588 INFO L274 CegarLoopResult]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2020-10-20 01:43:55,589 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:43:55,589 INFO L270 CegarLoopResult]: At program point L570(lines 570 576) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:43:55,589 INFO L270 CegarLoopResult]: At program point L570-1(lines 570 576) the Hoare annotation is: false [2020-10-20 01:43:55,590 INFO L270 CegarLoopResult]: At program point L570-2(lines 570 576) the Hoare annotation is: false [2020-10-20 01:43:55,590 INFO L274 CegarLoopResult]: For program point L719(lines 719 725) no Hoare annotation was computed. [2020-10-20 01:43:55,590 INFO L270 CegarLoopResult]: At program point L719-1(lines 719 725) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:43:55,590 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,591 INFO L274 CegarLoopResult]: For program point L786(lines 786 790) no Hoare annotation was computed. [2020-10-20 01:43:55,591 INFO L274 CegarLoopResult]: For program point L737(lines 737 741) no Hoare annotation was computed. [2020-10-20 01:43:55,591 INFO L270 CegarLoopResult]: At program point L737-2(lines 563 569) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:43:55,591 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:43:55,592 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-20 01:43:55,592 INFO L274 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-10-20 01:43:55,592 INFO L274 CegarLoopResult]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-10-20 01:43:55,592 INFO L270 CegarLoopResult]: At program point L458-2(lines 458 472) the Hoare annotation is: false [2020-10-20 01:43:55,592 INFO L270 CegarLoopResult]: At program point L640(lines 635 643) the Hoare annotation is: false [2020-10-20 01:43:55,593 INFO L270 CegarLoopResult]: At program point L640-1(lines 635 643) the Hoare annotation is: false [2020-10-20 01:43:55,593 INFO L270 CegarLoopResult]: At program point L640-2(lines 635 643) the Hoare annotation is: false [2020-10-20 01:43:55,593 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-20 01:43:55,593 INFO L270 CegarLoopResult]: At program point L509(lines 505 511) the Hoare annotation is: (and (= ~waterLevel~0 1) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) (= ~pumpRunning~0 0)) [2020-10-20 01:43:55,594 INFO L274 CegarLoopResult]: For program point L774(lines 774 778) no Hoare annotation was computed. [2020-10-20 01:43:55,594 INFO L274 CegarLoopResult]: For program point L709(lines 709 715) no Hoare annotation was computed. [2020-10-20 01:43:55,594 INFO L270 CegarLoopResult]: At program point L709-1(lines 709 715) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:43:55,594 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:43:55,594 INFO L270 CegarLoopResult]: At program point L858(lines 1 869) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0)) [2020-10-20 01:43:55,595 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:43:55,595 INFO L274 CegarLoopResult]: For program point L462(lines 462 466) no Hoare annotation was computed. [2020-10-20 01:43:55,595 INFO L274 CegarLoopResult]: For program point L462-1(lines 563 569) no Hoare annotation was computed. [2020-10-20 01:43:55,595 INFO L277 CegarLoopResult]: At program point L545(lines 526 548) the Hoare annotation is: true [2020-10-20 01:43:55,596 INFO L270 CegarLoopResult]: At program point L563(lines 562 581) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:43:55,596 INFO L274 CegarLoopResult]: For program point L563-1(lines 563 569) no Hoare annotation was computed. [2020-10-20 01:43:55,596 INFO L270 CegarLoopResult]: At program point L563-2(lines 562 581) the Hoare annotation is: false [2020-10-20 01:43:55,596 INFO L270 CegarLoopResult]: At program point L563-3(lines 562 581) the Hoare annotation is: false [2020-10-20 01:43:55,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:55 BoogieIcfgContainer [2020-10-20 01:43:55,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:55,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:55,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:55,626 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:55,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:53" (3/4) ... [2020-10-20 01:43:55,635 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:43:55,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:43:55,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:43:55,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:43:55,661 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:43:55,662 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:43:55,662 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:55,663 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:43:55,697 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (waterLevel == 1 && \result == waterLevel) && pumpRunning == 0 [2020-10-20 01:43:55,698 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0 [2020-10-20 01:43:55,699 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-10-20 01:43:55,699 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:43:55,700 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:43:55,701 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:43:55,701 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:43:55,701 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) [2020-10-20 01:43:55,703 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-10-20 01:43:55,786 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:55,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:55,789 INFO L168 Benchmark]: Toolchain (without parser) took 4423.54 ms. Allocated memory was 36.2 MB in the beginning and 62.4 MB in the end (delta: 26.2 MB). Free memory was 13.0 MB in the beginning and 11.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,790 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.3 MB in the end (delta: 29.8 kB). Peak memory consumption was 29.8 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.68 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 12.1 MB in the beginning and 15.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.27 ms. Allocated memory was 44.0 MB in the beginning and 43.5 MB in the end (delta: -524.3 kB). Free memory was 15.9 MB in the beginning and 25.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,791 INFO L168 Benchmark]: Boogie Preprocessor took 50.10 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 23.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,792 INFO L168 Benchmark]: RCFGBuilder took 960.01 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 23.7 MB in the beginning and 15.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,792 INFO L168 Benchmark]: TraceAbstraction took 2543.02 ms. Allocated memory was 47.7 MB in the beginning and 62.4 MB in the end (delta: 14.7 MB). Free memory was 14.9 MB in the beginning and 18.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,793 INFO L168 Benchmark]: Witness Printer took 160.94 ms. Allocated memory is still 62.4 MB. Free memory was 18.6 MB in the beginning and 11.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:55,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 34.1 MB. Free memory was 19.3 MB in the beginning and 19.3 MB in the end (delta: 29.8 kB). Peak memory consumption was 29.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 615.68 ms. Allocated memory was 36.2 MB in the beginning and 44.0 MB in the end (delta: 7.9 MB). Free memory was 12.1 MB in the beginning and 15.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 80.27 ms. Allocated memory was 44.0 MB in the beginning and 43.5 MB in the end (delta: -524.3 kB). Free memory was 15.9 MB in the beginning and 25.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 50.10 ms. Allocated memory is still 43.5 MB. Free memory was 25.9 MB in the beginning and 23.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 960.01 ms. Allocated memory was 43.5 MB in the beginning and 47.7 MB in the end (delta: 4.2 MB). Free memory was 23.7 MB in the beginning and 15.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2543.02 ms. Allocated memory was 47.7 MB in the beginning and 62.4 MB in the end (delta: 14.7 MB). Free memory was 14.9 MB in the beginning and 18.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 14.3 GB. * Witness Printer took 160.94 ms. Allocated memory is still 62.4 MB. Free memory was 18.6 MB in the beginning and 11.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (waterLevel == 1 && \result == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 698]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 536]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 526]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 635]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == waterLevel && tmp == waterLevel) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && \result == waterLevel) && tmp == waterLevel) && pumpRunning == 0 - InvariantResult [Line: 826]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: waterLevel == 1 && pumpRunning == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 238 SDtfs, 293 SDslu, 280 SDs, 0 SdLazy, 84 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, 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, 5 MinimizatonAttempts, 61 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 25 PreInvPairs, 41 NumberOfFragments, 250 HoareAnnotationTreeSize, 25 FomulaSimplifications, 288 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 9184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 23/28 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 correct! Received shutdown request...