./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product35.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_spec4_product35.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:07:26,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:26,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:26,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:26,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:26,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:26,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:26,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:26,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:26,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:26,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:26,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:26,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:26,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:26,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:26,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:26,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:26,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:26,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:26,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:26,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:26,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:26,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:26,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:26,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:26,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:26,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:26,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:26,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:26,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:26,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:26,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:26,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:26,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:26,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:26,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:26,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:26,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:26,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:26,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:26,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:26,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:26,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:26,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:26,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:26,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:26,600 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:26,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:26,600 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:26,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:26,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:26,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:26,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:26,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:26,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:26,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:26,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:26,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:26,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:26,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:26,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:26,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:26,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:26,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:26,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:26,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:26,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:26,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:26,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:26,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:26,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:26,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed98ebb1999cc1f1ce8b0aa16a3cd7cdfeeb781 [2020-10-25 23:07:27,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:27,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:27,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:27,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:27,053 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:27,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-10-25 23:07:27,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e121d391e/d0eb4deb3a5e40b987ee515141bb7bb8/FLAGb4274d7fc [2020-10-25 23:07:27,888 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:27,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product35.cil.c [2020-10-25 23:07:27,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e121d391e/d0eb4deb3a5e40b987ee515141bb7bb8/FLAGb4274d7fc [2020-10-25 23:07:28,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e121d391e/d0eb4deb3a5e40b987ee515141bb7bb8 [2020-10-25 23:07:28,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:28,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:28,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:28,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:28,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:28,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:28,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8e26fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28, skipping insertion in model container [2020-10-25 23:07:28,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:28,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:28,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:28,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:28,769 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:28,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:28,926 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:28,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28 WrapperNode [2020-10-25 23:07:28,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:28,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:28,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:28,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:28,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:28,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:29,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:29,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:29,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:29,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (1/1) ... [2020-10-25 23:07:29,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:29,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:29,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:29,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:29,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (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 23:07:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:30,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:30,064 INFO L298 CfgBuilder]: Removed 106 assume(true) statements. [2020-10-25 23:07:30,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:30 BoogieIcfgContainer [2020-10-25 23:07:30,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:30,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:30,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:30,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:30,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:28" (1/3) ... [2020-10-25 23:07:30,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435581cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:30, skipping insertion in model container [2020-10-25 23:07:30,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:28" (2/3) ... [2020-10-25 23:07:30,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@435581cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:30, skipping insertion in model container [2020-10-25 23:07:30,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:30" (3/3) ... [2020-10-25 23:07:30,077 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product35.cil.c [2020-10-25 23:07:30,090 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:30,096 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:30,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:30,140 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:30,141 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:30,141 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:30,141 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:30,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:30,142 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:30,142 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:30,142 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-10-25 23:07:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:30,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:30,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:30,170 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:30,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:30,177 INFO L82 PathProgramCache]: Analyzing trace with hash 349597533, now seen corresponding path program 1 times [2020-10-25 23:07:30,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:30,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203065156] [2020-10-25 23:07:30,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:30,545 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 23:07:30,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203065156] [2020-10-25 23:07:30,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:30,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:30,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149071556] [2020-10-25 23:07:30,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:30,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:30,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:30,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:30,580 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-10-25 23:07:30,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:30,613 INFO L93 Difference]: Finished difference Result 157 states and 236 transitions. [2020-10-25 23:07:30,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:30,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:30,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:30,628 INFO L225 Difference]: With dead ends: 157 [2020-10-25 23:07:30,629 INFO L226 Difference]: Without dead ends: 76 [2020-10-25 23:07:30,633 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 23:07:30,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-25 23:07:30,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-10-25 23:07:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-25 23:07:30,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 108 transitions. [2020-10-25 23:07:30,685 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 108 transitions. Word has length 16 [2020-10-25 23:07:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:30,685 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 108 transitions. [2020-10-25 23:07:30,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 108 transitions. [2020-10-25 23:07:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:30,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:30,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:30,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:30,688 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash -697159364, now seen corresponding path program 1 times [2020-10-25 23:07:30,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:30,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842615974] [2020-10-25 23:07:30,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:30,787 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 23:07:30,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842615974] [2020-10-25 23:07:30,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:30,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:30,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537963334] [2020-10-25 23:07:30,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:30,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:30,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:30,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:30,804 INFO L87 Difference]: Start difference. First operand 76 states and 108 transitions. Second operand 3 states. [2020-10-25 23:07:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:30,833 INFO L93 Difference]: Finished difference Result 76 states and 108 transitions. [2020-10-25 23:07:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:30,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:30,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:30,836 INFO L225 Difference]: With dead ends: 76 [2020-10-25 23:07:30,837 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 23:07:30,839 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 23:07:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 23:07:30,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 23:07:30,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 23:07:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-25 23:07:30,852 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 17 [2020-10-25 23:07:30,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:30,853 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-25 23:07:30,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:30,854 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-25 23:07:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:30,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:30,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:30,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:30,859 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:30,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:30,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1160602350, now seen corresponding path program 1 times [2020-10-25 23:07:30,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:30,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638052985] [2020-10-25 23:07:30,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,050 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 23:07:31,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638052985] [2020-10-25 23:07:31,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:31,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835465033] [2020-10-25 23:07:31,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:31,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:31,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:31,054 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 6 states. [2020-10-25 23:07:31,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:31,283 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-10-25 23:07:31,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:31,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-25 23:07:31,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:31,285 INFO L225 Difference]: With dead ends: 119 [2020-10-25 23:07:31,286 INFO L226 Difference]: Without dead ends: 89 [2020-10-25 23:07:31,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-25 23:07:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2020-10-25 23:07:31,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-25 23:07:31,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 80 transitions. [2020-10-25 23:07:31,308 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 80 transitions. Word has length 22 [2020-10-25 23:07:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:31,309 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 80 transitions. [2020-10-25 23:07:31,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:31,310 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-10-25 23:07:31,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-25 23:07:31,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:31,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:31,313 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1572373846, now seen corresponding path program 1 times [2020-10-25 23:07:31,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250038172] [2020-10-25 23:07:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,399 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 23:07:31,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250038172] [2020-10-25 23:07:31,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:31,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887034098] [2020-10-25 23:07:31,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:31,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:31,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:31,402 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-10-25 23:07:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:31,462 INFO L93 Difference]: Finished difference Result 125 states and 184 transitions. [2020-10-25 23:07:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:31,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-10-25 23:07:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:31,464 INFO L225 Difference]: With dead ends: 125 [2020-10-25 23:07:31,464 INFO L226 Difference]: Without dead ends: 76 [2020-10-25 23:07:31,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:31,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-25 23:07:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74. [2020-10-25 23:07:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-25 23:07:31,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2020-10-25 23:07:31,484 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 23 [2020-10-25 23:07:31,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:31,484 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2020-10-25 23:07:31,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:31,485 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2020-10-25 23:07:31,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:07:31,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:31,487 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 23:07:31,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:31,487 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:31,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1956458727, now seen corresponding path program 1 times [2020-10-25 23:07:31,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:31,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053687524] [2020-10-25 23:07:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:31,647 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 23:07:31,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053687524] [2020-10-25 23:07:31,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:31,648 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 23:07:31,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959902093] [2020-10-25 23:07:31,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:31,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:31,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:31,650 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 8 states. [2020-10-25 23:07:32,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:32,313 INFO L93 Difference]: Finished difference Result 458 states and 673 transitions. [2020-10-25 23:07:32,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-25 23:07:32,314 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-25 23:07:32,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:32,318 INFO L225 Difference]: With dead ends: 458 [2020-10-25 23:07:32,320 INFO L226 Difference]: Without dead ends: 390 [2020-10-25 23:07:32,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-25 23:07:32,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-10-25 23:07:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 189. [2020-10-25 23:07:32,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-25 23:07:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 263 transitions. [2020-10-25 23:07:32,388 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 263 transitions. Word has length 25 [2020-10-25 23:07:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:32,389 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 263 transitions. [2020-10-25 23:07:32,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 263 transitions. [2020-10-25 23:07:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-25 23:07:32,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:32,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:32,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:32,398 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:32,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1507837382, now seen corresponding path program 1 times [2020-10-25 23:07:32,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:32,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120962052] [2020-10-25 23:07:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:32,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120962052] [2020-10-25 23:07:32,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880763320] [2020-10-25 23:07:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:32,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 23:07:32,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:32,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 23:07:32,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-25 23:07:32,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945913375] [2020-10-25 23:07:32,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:32,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:32,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:32,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:32,795 INFO L87 Difference]: Start difference. First operand 189 states and 263 transitions. Second operand 4 states. [2020-10-25 23:07:32,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:32,939 INFO L93 Difference]: Finished difference Result 423 states and 603 transitions. [2020-10-25 23:07:32,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:32,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-10-25 23:07:32,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:32,949 INFO L225 Difference]: With dead ends: 423 [2020-10-25 23:07:32,950 INFO L226 Difference]: Without dead ends: 298 [2020-10-25 23:07:32,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:32,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-25 23:07:33,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 287. [2020-10-25 23:07:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-10-25 23:07:33,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 406 transitions. [2020-10-25 23:07:33,009 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 406 transitions. Word has length 40 [2020-10-25 23:07:33,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,009 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 406 transitions. [2020-10-25 23:07:33,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 406 transitions. [2020-10-25 23:07:33,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 23:07:33,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:07:33,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-25 23:07:33,240 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,241 INFO L82 PathProgramCache]: Analyzing trace with hash 69765016, now seen corresponding path program 1 times [2020-10-25 23:07:33,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506004732] [2020-10-25 23:07:33,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:33,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506004732] [2020-10-25 23:07:33,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:33,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:33,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900192789] [2020-10-25 23:07:33,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:33,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:33,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:33,315 INFO L87 Difference]: Start difference. First operand 287 states and 406 transitions. Second operand 5 states. [2020-10-25 23:07:33,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:33,428 INFO L93 Difference]: Finished difference Result 875 states and 1230 transitions. [2020-10-25 23:07:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:33,428 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-10-25 23:07:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:33,433 INFO L225 Difference]: With dead ends: 875 [2020-10-25 23:07:33,433 INFO L226 Difference]: Without dead ends: 594 [2020-10-25 23:07:33,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:07:33,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2020-10-25 23:07:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 299. [2020-10-25 23:07:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-25 23:07:33,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 418 transitions. [2020-10-25 23:07:33,472 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 418 transitions. Word has length 44 [2020-10-25 23:07:33,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,472 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 418 transitions. [2020-10-25 23:07:33,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:33,473 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 418 transitions. [2020-10-25 23:07:33,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-25 23:07:33,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,474 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:07:33,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:07:33,474 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,475 INFO L82 PathProgramCache]: Analyzing trace with hash 210313626, now seen corresponding path program 1 times [2020-10-25 23:07:33,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488666724] [2020-10-25 23:07:33,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:33,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488666724] [2020-10-25 23:07:33,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:33,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:33,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821336129] [2020-10-25 23:07:33,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:33,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:33,539 INFO L87 Difference]: Start difference. First operand 299 states and 418 transitions. Second operand 4 states. [2020-10-25 23:07:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:33,620 INFO L93 Difference]: Finished difference Result 691 states and 965 transitions. [2020-10-25 23:07:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:33,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-25 23:07:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:33,624 INFO L225 Difference]: With dead ends: 691 [2020-10-25 23:07:33,625 INFO L226 Difference]: Without dead ends: 398 [2020-10-25 23:07:33,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-10-25 23:07:33,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 274. [2020-10-25 23:07:33,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-25 23:07:33,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2020-10-25 23:07:33,667 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 44 [2020-10-25 23:07:33,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:33,667 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2020-10-25 23:07:33,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:33,668 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2020-10-25 23:07:33,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-25 23:07:33,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:33,669 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 23:07:33,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:07:33,670 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:33,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:33,671 INFO L82 PathProgramCache]: Analyzing trace with hash 253859482, now seen corresponding path program 1 times [2020-10-25 23:07:33,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:33,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805621222] [2020-10-25 23:07:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,779 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:33,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805621222] [2020-10-25 23:07:33,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901306388] [2020-10-25 23:07:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:33,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:33,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:07:33,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:33,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:07:33,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-25 23:07:33,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317251223] [2020-10-25 23:07:33,989 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-25 23:07:33,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-25 23:07:33,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:33,990 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand 8 states. [2020-10-25 23:07:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:34,315 INFO L93 Difference]: Finished difference Result 683 states and 950 transitions. [2020-10-25 23:07:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-25 23:07:34,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-10-25 23:07:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:34,320 INFO L225 Difference]: With dead ends: 683 [2020-10-25 23:07:34,320 INFO L226 Difference]: Without dead ends: 456 [2020-10-25 23:07:34,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-25 23:07:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-10-25 23:07:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 236. [2020-10-25 23:07:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-10-25 23:07:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 319 transitions. [2020-10-25 23:07:34,364 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 319 transitions. Word has length 45 [2020-10-25 23:07:34,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:34,364 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 319 transitions. [2020-10-25 23:07:34,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-25 23:07:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 319 transitions. [2020-10-25 23:07:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-25 23:07:34,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:34,366 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:34,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 23:07:34,582 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:34,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:34,583 INFO L82 PathProgramCache]: Analyzing trace with hash 874038597, now seen corresponding path program 2 times [2020-10-25 23:07:34,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:34,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541543093] [2020-10-25 23:07:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:07:34,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:07:34,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:07:34,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:07:34,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:07:34,803 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:07:34,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:07:34,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:07:34 BoogieIcfgContainer [2020-10-25 23:07:34,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:07:34,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:07:34,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:07:34,938 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:07:34,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:30" (3/4) ... [2020-10-25 23:07:34,941 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:07:35,098 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:07:35,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:07:35,102 INFO L168 Benchmark]: Toolchain (without parser) took 6894.61 ms. Allocated memory was 44.0 MB in the beginning and 98.6 MB in the end (delta: 54.5 MB). Free memory was 26.7 MB in the beginning and 58.9 MB in the end (delta: -32.3 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,103 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 35.7 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:07:35,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.45 ms. Allocated memory is still 44.0 MB. Free memory was 26.0 MB in the beginning and 25.7 MB in the end (delta: 374.4 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.66 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 22.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,104 INFO L168 Benchmark]: Boogie Preprocessor took 44.97 ms. Allocated memory is still 44.0 MB. Free memory was 22.7 MB in the beginning and 20.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,104 INFO L168 Benchmark]: RCFGBuilder took 1017.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 30.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,104 INFO L168 Benchmark]: TraceAbstraction took 4868.40 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 29.8 MB in the beginning and 31.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,105 INFO L168 Benchmark]: Witness Printer took 161.05 ms. Allocated memory is still 98.6 MB. Free memory was 31.1 MB in the beginning and 58.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:07:35,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 35.7 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.45 ms. Allocated memory is still 44.0 MB. Free memory was 26.0 MB in the beginning and 25.7 MB in the end (delta: 374.4 kB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.66 ms. Allocated memory is still 44.0 MB. Free memory was 25.7 MB in the beginning and 22.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.97 ms. Allocated memory is still 44.0 MB. Free memory was 22.7 MB in the beginning and 20.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1017.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 30.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4868.40 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 29.8 MB in the beginning and 31.1 MB in the end (delta: -1.3 MB). Peak memory consumption was 43.8 MB. Max. memory is 16.1 GB. * Witness Printer took 161.05 ms. Allocated memory is still 98.6 MB. Free memory was 31.1 MB in the beginning and 58.9 MB in the end (delta: -27.9 MB). Peak memory consumption was 13.1 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: [L150] int pumpRunning = 0; [L151] int systemActive = 1; [L317] int cleanupTimeShifts = 4; [L585] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L826] int waterLevel = 1; [L827] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L393] int retValue_acc ; [L394] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L400] tmp = valid_product() [L402] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] COND TRUE waterLevel < 2 [L845] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; [L906] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] COND FALSE !(waterLevel < 2) [L913] retValue_acc = 0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L123] tmp = getWaterLevel() [L125] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel > 0 [L833] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L118] int tmp ; [L119] int tmp___0 ; [L897] int retValue_acc ; [L900] retValue_acc = waterLevel [L901] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L123] tmp = getWaterLevel() [L125] COND TRUE tmp == 0 [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L127] tmp___0 = isPumpRunning() [L129] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec4_product35.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 692 SDtfs, 1162 SDslu, 1407 SDs, 0 SdLazy, 217 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=299occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 887 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 421 NumberOfCodeBlocks, 421 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 24417 SizeOfPredicates, 4 NumberOfNonLiveVariables, 779 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 73/84 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...