./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_product32.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 41828788c86d3b4773495bb168c9dac21937a6b5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-5485861 [2020-10-25 23:06:23,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:23,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:23,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:23,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:23,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:23,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:23,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:23,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:23,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:23,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:23,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:23,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:23,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:23,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:23,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:23,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:23,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:23,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:23,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:23,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:23,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:23,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:23,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:23,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:23,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:23,793 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:23,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:23,796 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:23,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:23,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:23,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:23,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:23,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:23,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:23,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:23,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:23,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:23,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:23,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:23,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:23,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:23,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:23,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:23,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:23,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:23,875 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:23,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:23,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:23,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:23,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:23,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:23,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:23,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:23,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:23,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:23,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:23,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:23,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:23,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:23,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:23,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:23,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:23,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:23,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:23,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:23,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:23,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:23,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:23,884 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:23,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:23,885 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41828788c86d3b4773495bb168c9dac21937a6b5 [2020-10-25 23:06:24,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:24,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:24,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:24,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:24,331 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:24,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-10-25 23:06:24,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db90845dc/988568ebb2734bd8a1c094668137e0a4/FLAG3ae9445e4 [2020-10-25 23:06:25,122 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:25,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-10-25 23:06:25,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db90845dc/988568ebb2734bd8a1c094668137e0a4/FLAG3ae9445e4 [2020-10-25 23:06:25,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db90845dc/988568ebb2734bd8a1c094668137e0a4 [2020-10-25 23:06:25,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:25,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:25,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:25,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:25,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:25,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:25" (1/1) ... [2020-10-25 23:06:25,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e05de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:25, skipping insertion in model container [2020-10-25 23:06:25,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:25" (1/1) ... [2020-10-25 23:06:25,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:25,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:26,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:26,022 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:26,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:26,133 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26 WrapperNode [2020-10-25 23:06:26,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:26,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:26,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:26,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:26,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:26,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:26,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:26,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:26,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (1/1) ... [2020-10-25 23:06:26,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:26,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:26,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:26,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:26,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (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 [2020-10-25 23:06:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:26,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:26,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:27,308 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:27,308 INFO L298 CfgBuilder]: Removed 174 assume(true) statements. [2020-10-25 23:06:27,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:27 BoogieIcfgContainer [2020-10-25 23:06:27,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:27,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:27,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:27,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:27,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:25" (1/3) ... [2020-10-25 23:06:27,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e224a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:27, skipping insertion in model container [2020-10-25 23:06:27,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:26" (2/3) ... [2020-10-25 23:06:27,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e224a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:27, skipping insertion in model container [2020-10-25 23:06:27,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:27" (3/3) ... [2020-10-25 23:06:27,321 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-10-25 23:06:27,337 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:27,342 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:27,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:27,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:27,396 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:27,396 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:27,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:27,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:27,396 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:27,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:27,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states. [2020-10-25 23:06:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:27,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:27,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:27,432 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1818462071, now seen corresponding path program 1 times [2020-10-25 23:06:27,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402529130] [2020-10-25 23:06:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:27,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402529130] [2020-10-25 23:06:27,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:27,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:27,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778874331] [2020-10-25 23:06:27,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:27,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:27,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:27,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:27,805 INFO L87 Difference]: Start difference. First operand 116 states. Second operand 2 states. [2020-10-25 23:06:27,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:27,839 INFO L93 Difference]: Finished difference Result 223 states and 332 transitions. [2020-10-25 23:06:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:27,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:27,852 INFO L225 Difference]: With dead ends: 223 [2020-10-25 23:06:27,852 INFO L226 Difference]: Without dead ends: 109 [2020-10-25 23:06:27,855 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 [2020-10-25 23:06:27,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-25 23:06:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-25 23:06:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-25 23:06:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-10-25 23:06:27,903 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-10-25 23:06:27,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:27,903 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-10-25 23:06:27,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-10-25 23:06:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:27,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:27,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:27,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:27,906 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,907 INFO L82 PathProgramCache]: Analyzing trace with hash 907431318, now seen corresponding path program 1 times [2020-10-25 23:06:27,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662919657] [2020-10-25 23:06:27,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:28,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662919657] [2020-10-25 23:06:28,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:28,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:28,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802881597] [2020-10-25 23:06:28,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:28,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:28,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:28,077 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-10-25 23:06:28,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:28,099 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-10-25 23:06:28,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:28,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:28,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:28,102 INFO L225 Difference]: With dead ends: 109 [2020-10-25 23:06:28,102 INFO L226 Difference]: Without dead ends: 47 [2020-10-25 23:06:28,103 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 [2020-10-25 23:06:28,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-25 23:06:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-25 23:06:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-25 23:06:28,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-10-25 23:06:28,110 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-10-25 23:06:28,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:28,111 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-10-25 23:06:28,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:28,113 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-10-25 23:06:28,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:28,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:28,114 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] [2020-10-25 23:06:28,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:28,114 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:28,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:28,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-10-25 23:06:28,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:28,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285550784] [2020-10-25 23:06:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:28,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:28,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285550784] [2020-10-25 23:06:28,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:28,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:28,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323838833] [2020-10-25 23:06:28,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:28,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:28,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:28,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:28,217 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-10-25 23:06:28,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:28,259 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-10-25 23:06:28,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:28,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:06:28,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:28,261 INFO L225 Difference]: With dead ends: 129 [2020-10-25 23:06:28,261 INFO L226 Difference]: Without dead ends: 88 [2020-10-25 23:06:28,262 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 [2020-10-25 23:06:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-10-25 23:06:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-10-25 23:06:28,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-25 23:06:28,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2020-10-25 23:06:28,281 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2020-10-25 23:06:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:28,281 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2020-10-25 23:06:28,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:28,282 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2020-10-25 23:06:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:06:28,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:28,283 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] [2020-10-25 23:06:28,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:28,287 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:28,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-10-25 23:06:28,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:28,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276406450] [2020-10-25 23:06:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:28,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:28,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276406450] [2020-10-25 23:06:28,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:28,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:28,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923774335] [2020-10-25 23:06:28,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:28,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:28,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:28,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:28,426 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2020-10-25 23:06:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:28,676 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2020-10-25 23:06:28,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:28,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-25 23:06:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:28,681 INFO L225 Difference]: With dead ends: 488 [2020-10-25 23:06:28,682 INFO L226 Difference]: Without dead ends: 410 [2020-10-25 23:06:28,683 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 [2020-10-25 23:06:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-25 23:06:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2020-10-25 23:06:28,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-25 23:06:28,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2020-10-25 23:06:28,713 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2020-10-25 23:06:28,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:28,713 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2020-10-25 23:06:28,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:28,713 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2020-10-25 23:06:28,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:28,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:28,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:28,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:28,716 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:28,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-10-25 23:06:28,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:28,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655341245] [2020-10-25 23:06:28,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:28,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:28,871 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:28,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:28,916 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:28,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:29,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:29 BoogieIcfgContainer [2020-10-25 23:06:29,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:29,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:29,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:29,040 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:29,040 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:27" (3/4) ... [2020-10-25 23:06:29,043 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:29,162 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:29,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:29,165 INFO L168 Benchmark]: Toolchain (without parser) took 3733.10 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 24.6 MB in the beginning and 20.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 27.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,165 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:29,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.67 ms. Allocated memory is still 48.2 MB. Free memory was 24.0 MB in the beginning and 19.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.80 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 39.6 MB in the end (delta: -20.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,168 INFO L168 Benchmark]: Boogie Preprocessor took 50.32 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 36.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,168 INFO L168 Benchmark]: RCFGBuilder took 1039.12 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 28.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,177 INFO L168 Benchmark]: TraceAbstraction took 1725.38 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.6 MB in the beginning and 31.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,178 INFO L168 Benchmark]: Witness Printer took 123.23 ms. Allocated memory is still 71.3 MB. Free memory was 31.7 MB in the beginning and 20.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:29,182 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 48.2 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 694.67 ms. Allocated memory is still 48.2 MB. Free memory was 24.0 MB in the beginning and 19.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.80 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 19.3 MB in the beginning and 39.6 MB in the end (delta: -20.3 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.32 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 36.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1039.12 ms. Allocated memory is still 58.7 MB. Free memory was 36.8 MB in the beginning and 28.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1725.38 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.6 MB in the beginning and 31.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 25.6 MB. Max. memory is 16.1 GB. * Witness Printer took 123.23 ms. Allocated memory is still 71.3 MB. Free memory was 31.7 MB in the beginning and 20.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 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: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] int retValue_acc ; [L796] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND TRUE \read(systemActive) [L554] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] tmp___1 = isPumpRunning() [L838] 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_product32.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, 116 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 445 SDslu, 330 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 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...