./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product07.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_product07.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 6bc56b3d4460bea28e0863848945154ca9602d93 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:43:00,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:00,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:00,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:00,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:00,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:00,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:00,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:00,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:00,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:00,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:00,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:00,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:00,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:00,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:00,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:00,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:00,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:00,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:00,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:00,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:00,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:00,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:00,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:00,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:00,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:00,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:00,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:00,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:00,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:00,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:00,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:00,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:00,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:00,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:00,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:00,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:00,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:00,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:00,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:00,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:00,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:00,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:00,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:00,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:00,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:00,164 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:00,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:00,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:00,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:00,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:00,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:00,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:00,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:00,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:00,168 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:00,168 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:00,168 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:00,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:00,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:00,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:00,169 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:00,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:00,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:00,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:00,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:00,173 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 -> 6bc56b3d4460bea28e0863848945154ca9602d93 [2020-10-20 01:43:00,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:00,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:00,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:00,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:00,426 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:00,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-10-20 01:43:00,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175a67c29/ed3b1e9191b64ce0ac49a6bec4b80b6a/FLAGd89e4e7df [2020-10-20 01:43:01,058 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:01,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2020-10-20 01:43:01,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175a67c29/ed3b1e9191b64ce0ac49a6bec4b80b6a/FLAGd89e4e7df [2020-10-20 01:43:01,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/175a67c29/ed3b1e9191b64ce0ac49a6bec4b80b6a [2020-10-20 01:43:01,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:01,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:01,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:01,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:01,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:01,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b1fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01, skipping insertion in model container [2020-10-20 01:43:01,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:01,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:01,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:01,772 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:01,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:01,901 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:01,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01 WrapperNode [2020-10-20 01:43:01,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:01,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:01,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:01,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:01,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:01,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:01,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:01,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:01,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:01,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:02,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:02,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:02,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (1/1) ... [2020-10-20 01:43:02,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:02,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:02,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:02,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:02,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (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 01:43:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:02,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:02,931 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:02,932 INFO L298 CfgBuilder]: Removed 112 assume(true) statements. [2020-10-20 01:43:02,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:02 BoogieIcfgContainer [2020-10-20 01:43:02,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:02,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:02,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:02,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:02,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:01" (1/3) ... [2020-10-20 01:43:02,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34591e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:02, skipping insertion in model container [2020-10-20 01:43:02,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:01" (2/3) ... [2020-10-20 01:43:02,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34591e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:02, skipping insertion in model container [2020-10-20 01:43:02,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:02" (3/3) ... [2020-10-20 01:43:02,943 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-10-20 01:43:02,955 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:02,964 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:02,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:03,001 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:03,002 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:03,002 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:03,002 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:03,003 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:03,003 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:03,003 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:03,003 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-10-20 01:43:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:03,025 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:03,025 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 01:43:03,026 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:03,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:03,031 INFO L82 PathProgramCache]: Analyzing trace with hash 785714734, now seen corresponding path program 1 times [2020-10-20 01:43:03,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:03,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200598533] [2020-10-20 01:43:03,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:03,285 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 01:43:03,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200598533] [2020-10-20 01:43:03,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:03,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:03,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117071948] [2020-10-20 01:43:03,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:03,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:03,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:03,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:03,323 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-10-20 01:43:03,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:03,373 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-10-20 01:43:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:03,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:03,400 INFO L225 Difference]: With dead ends: 151 [2020-10-20 01:43:03,400 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 01:43:03,406 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 01:43:03,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 01:43:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 01:43:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 01:43:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-10-20 01:43:03,472 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-10-20 01:43:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:03,473 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-10-20 01:43:03,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-10-20 01:43:03,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:03,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:03,475 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 01:43:03,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:03,476 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash -125316019, now seen corresponding path program 1 times [2020-10-20 01:43:03,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:03,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880811512] [2020-10-20 01:43:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:03,599 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 01:43:03,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880811512] [2020-10-20 01:43:03,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:03,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:03,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752315873] [2020-10-20 01:43:03,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:03,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:03,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:03,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:03,602 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-10-20 01:43:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:03,616 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-10-20 01:43:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:03,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:03,618 INFO L225 Difference]: With dead ends: 73 [2020-10-20 01:43:03,618 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 01:43:03,620 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 01:43:03,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 01:43:03,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 01:43:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 01:43:03,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-10-20 01:43:03,625 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-10-20 01:43:03,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:03,625 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-10-20 01:43:03,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-10-20 01:43:03,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:03,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:03,626 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 01:43:03,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:03,627 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:03,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:03,627 INFO L82 PathProgramCache]: Analyzing trace with hash -227571320, now seen corresponding path program 1 times [2020-10-20 01:43:03,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:03,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666037209] [2020-10-20 01:43:03,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:03,734 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 01:43:03,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666037209] [2020-10-20 01:43:03,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:03,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:03,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584908969] [2020-10-20 01:43:03,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:43:03,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:03,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:43:03,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:43:03,737 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 6 states. [2020-10-20 01:43:03,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:03,917 INFO L93 Difference]: Finished difference Result 118 states and 172 transitions. [2020-10-20 01:43:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:03,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-20 01:43:03,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:03,920 INFO L225 Difference]: With dead ends: 118 [2020-10-20 01:43:03,920 INFO L226 Difference]: Without dead ends: 89 [2020-10-20 01:43:03,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:03,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-20 01:43:03,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 56. [2020-10-20 01:43:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-20 01:43:03,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 81 transitions. [2020-10-20 01:43:03,932 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 81 transitions. Word has length 24 [2020-10-20 01:43:03,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:03,933 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 81 transitions. [2020-10-20 01:43:03,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:43:03,933 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2020-10-20 01:43:03,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:03,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:03,935 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 01:43:03,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:03,935 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:03,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:03,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1937535180, now seen corresponding path program 1 times [2020-10-20 01:43:03,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:03,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266525370] [2020-10-20 01:43:03,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:04,061 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 01:43:04,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266525370] [2020-10-20 01:43:04,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:04,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:04,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338302300] [2020-10-20 01:43:04,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:04,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:04,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:04,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:04,063 INFO L87 Difference]: Start difference. First operand 56 states and 81 transitions. Second operand 5 states. [2020-10-20 01:43:04,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:04,164 INFO L93 Difference]: Finished difference Result 292 states and 446 transitions. [2020-10-20 01:43:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:04,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:43:04,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:04,167 INFO L225 Difference]: With dead ends: 292 [2020-10-20 01:43:04,167 INFO L226 Difference]: Without dead ends: 242 [2020-10-20 01:43:04,168 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 01:43:04,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-20 01:43:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 100. [2020-10-20 01:43:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-20 01:43:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2020-10-20 01:43:04,185 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 25 [2020-10-20 01:43:04,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:04,186 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2020-10-20 01:43:04,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:04,186 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2020-10-20 01:43:04,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:04,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:04,187 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] [2020-10-20 01:43:04,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:04,188 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:04,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:04,188 INFO L82 PathProgramCache]: Analyzing trace with hash -21773810, now seen corresponding path program 1 times [2020-10-20 01:43:04,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:04,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075201681] [2020-10-20 01:43:04,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:04,290 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:04,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:04,451 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:04,452 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:04,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:04,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:04 BoogieIcfgContainer [2020-10-20 01:43:04,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:04,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:04,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:04,609 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:04,609 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:02" (3/4) ... [2020-10-20 01:43:04,613 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:04,742 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:04,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:04,748 INFO L168 Benchmark]: Toolchain (without parser) took 3415.80 ms. Allocated memory was 34.6 MB in the beginning and 58.7 MB in the end (delta: 24.1 MB). Free memory was 7.0 MB in the beginning and 26.9 MB in the end (delta: -19.9 MB). Peak memory consumption was 19.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,749 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.6 MB. Free memory was 12.9 MB in the beginning and 12.8 MB in the end (delta: 47.3 kB). Peak memory consumption was 47.3 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,750 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.94 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 19.1 MB in the beginning and 16.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,751 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.78 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 16.2 MB in the beginning and 27.2 MB in the end (delta: -11.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,752 INFO L168 Benchmark]: Boogie Preprocessor took 49.73 ms. Allocated memory is still 46.7 MB. Free memory was 27.2 MB in the beginning and 25.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,752 INFO L168 Benchmark]: RCFGBuilder took 894.96 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 25.0 MB in the beginning and 28.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,753 INFO L168 Benchmark]: TraceAbstraction took 1673.54 ms. Allocated memory was 49.3 MB in the beginning and 57.1 MB in the end (delta: 7.9 MB). Free memory was 28.3 MB in the beginning and 10.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,754 INFO L168 Benchmark]: Witness Printer took 133.72 ms. Allocated memory was 57.1 MB in the beginning and 58.7 MB in the end (delta: 1.6 MB). Free memory was 10.6 MB in the beginning and 26.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 858.9 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:04,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.6 MB. Free memory was 12.9 MB in the beginning and 12.8 MB in the end (delta: 47.3 kB). Peak memory consumption was 47.3 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 559.94 ms. Allocated memory was 36.7 MB in the beginning and 44.6 MB in the end (delta: 7.9 MB). Free memory was 19.1 MB in the beginning and 16.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 17.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 78.78 ms. Allocated memory was 44.6 MB in the beginning and 46.7 MB in the end (delta: 2.1 MB). Free memory was 16.2 MB in the beginning and 27.2 MB in the end (delta: -11.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 49.73 ms. Allocated memory is still 46.7 MB. Free memory was 27.2 MB in the beginning and 25.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 894.96 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 25.0 MB in the beginning and 28.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1673.54 ms. Allocated memory was 49.3 MB in the beginning and 57.1 MB in the end (delta: 7.9 MB). Free memory was 28.3 MB in the beginning and 10.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 14.3 GB. * Witness Printer took 133.72 ms. Allocated memory was 57.1 MB in the beginning and 58.7 MB in the end (delta: 1.6 MB). Free memory was 10.6 MB in the beginning and 26.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 858.9 kB. 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: [L89] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L813] int waterLevel = 1; [L814] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] int retValue_acc ; [L168] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] tmp = valid_product() [L176] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L747] int splverifierCounter ; [L748] int tmp ; [L749] int tmp___0 ; [L750] int tmp___1 ; [L751] int tmp___2 ; [L754] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L764] tmp = __VERIFIER_nondet_int() [L766] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] COND TRUE waterLevel < 2 [L832] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L774] tmp___0 = __VERIFIER_nondet_int() [L776] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L784] tmp___2 = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L634] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L852] int retValue_acc ; [L855] retValue_acc = methaneLevelCritical [L856] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L884] int retValue_acc ; [L887] retValue_acc = waterLevel [L888] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L686] int retValue_acc ; [L689] retValue_acc = pumpRunning [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product07.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 404 SDslu, 451 SDs, 0 SdLazy, 55 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 175 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...