./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_product28.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 e2c2c81b567a81a7a78250134e04d44c308ef2ab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:06:22,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:22,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:22,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:22,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:22,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:22,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:22,631 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:22,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:22,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:22,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:22,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:22,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:22,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:22,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:22,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:22,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:22,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:22,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:22,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:22,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:22,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:22,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:22,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:22,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:22,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:22,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:22,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:22,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:22,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:22,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:22,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:22,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:22,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:22,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:22,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:22,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:22,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:22,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:22,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:22,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:22,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:22,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:22,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:22,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:22,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:22,742 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:22,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:22,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:22,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:22,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:22,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:22,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:22,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:22,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:22,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:22,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:22,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:22,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:22,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:22,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:22,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:22,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:22,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:22,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:22,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:22,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:22,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:22,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:22,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:22,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:22,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2c2c81b567a81a7a78250134e04d44c308ef2ab [2020-10-25 23:06:23,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:23,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:23,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:23,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:23,186 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:23,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2020-10-25 23:06:23,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f29fc7/2a2ef40b7cba43078273698f7449a319/FLAG13f86decf [2020-10-25 23:06:23,937 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:23,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product28.cil.c [2020-10-25 23:06:23,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f29fc7/2a2ef40b7cba43078273698f7449a319/FLAG13f86decf [2020-10-25 23:06:24,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f29fc7/2a2ef40b7cba43078273698f7449a319 [2020-10-25 23:06:24,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:24,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:24,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:24,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:24,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:24,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195e3850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24, skipping insertion in model container [2020-10-25 23:06:24,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:24,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:24,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:24,739 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:24,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:24,873 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:24,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24 WrapperNode [2020-10-25 23:06:24,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:24,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:24,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:24,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:24,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:24,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:24,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:24,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:24,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:24,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:25,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:25,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (1/1) ... [2020-10-25 23:06:25,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:25,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:25,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:25,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:25,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (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 23:06:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:26,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:26,261 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-10-25 23:06:26,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:26 BoogieIcfgContainer [2020-10-25 23:06:26,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:26,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:26,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:26,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:26,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:24" (1/3) ... [2020-10-25 23:06:26,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5912e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:26, skipping insertion in model container [2020-10-25 23:06:26,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:24" (2/3) ... [2020-10-25 23:06:26,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5912e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:26, skipping insertion in model container [2020-10-25 23:06:26,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:26" (3/3) ... [2020-10-25 23:06:26,274 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-10-25 23:06:26,288 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:26,294 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:26,312 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:26,341 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:26,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:26,342 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:26,342 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:26,342 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:26,342 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:26,342 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:26,342 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2020-10-25 23:06:26,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:26,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:26,369 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 23:06:26,369 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:26,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1919608253, now seen corresponding path program 1 times [2020-10-25 23:06:26,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:26,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015342601] [2020-10-25 23:06:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:26,799 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 23:06:26,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015342601] [2020-10-25 23:06:26,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:26,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:26,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936870124] [2020-10-25 23:06:26,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:26,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:26,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:26,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:26,832 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2020-10-25 23:06:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:26,886 INFO L93 Difference]: Finished difference Result 163 states and 242 transitions. [2020-10-25 23:06:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:26,889 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:26,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:26,908 INFO L225 Difference]: With dead ends: 163 [2020-10-25 23:06:26,909 INFO L226 Difference]: Without dead ends: 79 [2020-10-25 23:06:26,927 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 23:06:26,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-25 23:06:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-10-25 23:06:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-25 23:06:26,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-10-25 23:06:26,995 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-10-25 23:06:26,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:26,995 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-10-25 23:06:26,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-10-25 23:06:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:26,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:26,999 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 23:06:26,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:27,000 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1008577500, now seen corresponding path program 1 times [2020-10-25 23:06:27,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702996314] [2020-10-25 23:06:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:27,171 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 23:06:27,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702996314] [2020-10-25 23:06:27,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:27,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:27,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539610342] [2020-10-25 23:06:27,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:27,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:27,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:27,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:27,175 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2020-10-25 23:06:27,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:27,187 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-10-25 23:06:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:27,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:27,189 INFO L225 Difference]: With dead ends: 79 [2020-10-25 23:06:27,190 INFO L226 Difference]: Without dead ends: 37 [2020-10-25 23:06:27,191 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 23:06:27,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-25 23:06:27,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-25 23:06:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-25 23:06:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-10-25 23:06:27,197 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-10-25 23:06:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:27,198 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-10-25 23:06:27,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-10-25 23:06:27,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:27,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:27,200 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 23:06:27,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:27,200 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,201 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2020-10-25 23:06:27,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154216268] [2020-10-25 23:06:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:27,341 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 23:06:27,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154216268] [2020-10-25 23:06:27,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:27,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:06:27,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115048657] [2020-10-25 23:06:27,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:27,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:27,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:27,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:27,348 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 5 states. [2020-10-25 23:06:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:27,550 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-10-25 23:06:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:06:27,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-25 23:06:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:27,552 INFO L225 Difference]: With dead ends: 93 [2020-10-25 23:06:27,552 INFO L226 Difference]: Without dead ends: 62 [2020-10-25 23:06:27,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:06:27,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-25 23:06:27,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-25 23:06:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-25 23:06:27,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-10-25 23:06:27,564 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2020-10-25 23:06:27,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:27,565 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-10-25 23:06:27,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:27,565 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-10-25 23:06:27,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:06:27,566 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:27,566 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] [2020-10-25 23:06:27,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:27,567 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2020-10-25 23:06:27,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862312551] [2020-10-25 23:06:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:27,668 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 23:06:27,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862312551] [2020-10-25 23:06:27,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:27,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:27,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402943488] [2020-10-25 23:06:27,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:27,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:27,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:27,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:27,671 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 5 states. [2020-10-25 23:06:27,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:27,840 INFO L93 Difference]: Finished difference Result 306 states and 467 transitions. [2020-10-25 23:06:27,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:27,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-25 23:06:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:27,844 INFO L225 Difference]: With dead ends: 306 [2020-10-25 23:06:27,844 INFO L226 Difference]: Without dead ends: 254 [2020-10-25 23:06:27,845 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 23:06:27,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-25 23:06:27,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 104. [2020-10-25 23:06:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-25 23:06:27,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2020-10-25 23:06:27,870 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 25 [2020-10-25 23:06:27,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:27,870 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2020-10-25 23:06:27,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:27,870 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2020-10-25 23:06:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:06:27,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:27,872 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 23:06:27,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:27,872 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:27,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:27,873 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2020-10-25 23:06:27,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:27,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477160413] [2020-10-25 23:06:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:27,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:28,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:28,106 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:28,106 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:28,107 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:28,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:28 BoogieIcfgContainer [2020-10-25 23:06:28,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:28,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:28,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:28,230 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:28,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:26" (3/4) ... [2020-10-25 23:06:28,233 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:28,358 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:28,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:28,362 INFO L168 Benchmark]: Toolchain (without parser) took 4089.00 ms. Allocated memory was 46.1 MB in the beginning and 83.9 MB in the end (delta: 37.7 MB). Free memory was 22.5 MB in the beginning and 56.8 MB in the end (delta: -34.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,363 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 46.1 MB. Free memory was 31.4 MB in the beginning and 31.4 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:28,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 594.05 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 23.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.69 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 19.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,367 INFO L168 Benchmark]: Boogie Preprocessor took 65.88 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.9 MB in the beginning and 39.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,371 INFO L168 Benchmark]: RCFGBuilder took 1238.70 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 35.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,372 INFO L168 Benchmark]: TraceAbstraction took 1959.03 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 27.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,373 INFO L168 Benchmark]: Witness Printer took 134.11 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 56.8 MB in the end (delta: -28.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:28,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 46.1 MB. Free memory was 31.4 MB in the beginning and 31.4 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 594.05 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 23.0 MB in the end (delta: -1.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.69 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 19.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.88 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 19.9 MB in the beginning and 39.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1238.70 ms. Allocated memory is still 56.6 MB. Free memory was 39.8 MB in the beginning and 35.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1959.03 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 27.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * Witness Printer took 134.11 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 56.8 MB in the end (delta: -28.9 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: [L91] int pumpRunning = 0; [L92] int systemActive = 1; [L358] int waterLevel = 1; [L359] int methaneLevelCritical = 0; [L447] int cleanupTimeShifts = 4; [L755] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] int retValue_acc ; [L521] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] tmp = valid_product() [L529] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L289] int splverifierCounter ; [L290] int tmp ; [L291] int tmp___0 ; [L292] int tmp___1 ; [L293] int tmp___2 ; [L296] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L298] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L300] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L306] tmp = __VERIFIER_nondet_int() [L308] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L376] COND TRUE waterLevel < 2 [L377] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L316] tmp___0 = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L326] tmp___2 = __VERIFIER_nondet_int() [L328] COND TRUE \read(tmp___2) [L280] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L99] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] COND TRUE \read(systemActive) [L128] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L397] int retValue_acc ; [L400] retValue_acc = methaneLevelCritical [L401] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L559] tmp = isMethaneLevelCritical() [L561] COND FALSE !(\read(tmp)) [L429] int retValue_acc ; [L432] retValue_acc = waterLevel [L433] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L565] tmp___0 = getWaterLevel() [L567] COND TRUE tmp___0 == 2 [L198] int retValue_acc ; [L201] retValue_acc = pumpRunning [L202] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L569] tmp___1 = isPumpRunning() [L571] 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_product28.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, 86 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 480 SDslu, 240 SDs, 0 SdLazy, 48 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred 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, 154 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3028 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...