./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product33.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_spec2_product33.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 b5076d679b37839f733750e31fc3798a3b068ae0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:05:26,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:05:26,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:05:26,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:05:26,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:05:26,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:05:26,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:05:26,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:05:26,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:05:26,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:05:26,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:05:26,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:05:26,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:05:26,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:05:26,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:05:26,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:05:26,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:05:26,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:05:26,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:05:26,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:05:26,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:05:26,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:05:26,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:05:26,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:05:26,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:05:26,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:05:26,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:05:26,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:05:26,842 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:05:26,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:05:26,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:05:26,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:05:26,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:05:26,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:05:26,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:05:26,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:05:26,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:05:26,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:05:26,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:05:26,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:05:26,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:05:26,853 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:05:26,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:05:26,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:05:26,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:05:26,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:05:26,895 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:05:26,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:05:26,896 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:05:26,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:05:26,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:05:26,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:05:26,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:05:26,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:05:26,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:05:26,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:05:26,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:05:26,901 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:05:26,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:05:26,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:05:26,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:05:26,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:05:26,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:05:26,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:05:26,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:05:26,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:05:26,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:05:26,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:05:26,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:05:26,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:05:26,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:05:26,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5076d679b37839f733750e31fc3798a3b068ae0 [2020-10-25 23:05:27,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:05:27,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:05:27,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:05:27,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:05:27,444 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:05:27,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-10-25 23:05:27,531 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9bd4c26/f0f40b3a8f5b4de0a6f0294bab8d6ec0/FLAG887fe95bd [2020-10-25 23:05:28,258 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:05:28,259 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2020-10-25 23:05:28,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9bd4c26/f0f40b3a8f5b4de0a6f0294bab8d6ec0/FLAG887fe95bd [2020-10-25 23:05:28,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a9bd4c26/f0f40b3a8f5b4de0a6f0294bab8d6ec0 [2020-10-25 23:05:28,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:05:28,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:05:28,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:05:28,549 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:05:28,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:05:28,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:05:28" (1/1) ... [2020-10-25 23:05:28,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@192a9f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:28, skipping insertion in model container [2020-10-25 23:05:28,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:05:28" (1/1) ... [2020-10-25 23:05:28,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:05:28,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:05:29,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:05:29,106 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:05:29,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:05:29,273 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:05:29,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29 WrapperNode [2020-10-25 23:05:29,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:05:29,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:05:29,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:05:29,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:05:29,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:05:29,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:05:29,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:05:29,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:05:29,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (1/1) ... [2020-10-25 23:05:29,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:05:29,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:05:29,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:05:29,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:05:29,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (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 23:05:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:05:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:05:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:05:29,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:05:30,506 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:05:30,506 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-10-25 23:05:30,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:05:30 BoogieIcfgContainer [2020-10-25 23:05:30,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:05:30,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:05:30,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:05:30,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:05:30,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:05:28" (1/3) ... [2020-10-25 23:05:30,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56633b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:05:30, skipping insertion in model container [2020-10-25 23:05:30,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:05:29" (2/3) ... [2020-10-25 23:05:30,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e56633b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:05:30, skipping insertion in model container [2020-10-25 23:05:30,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:05:30" (3/3) ... [2020-10-25 23:05:30,520 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-10-25 23:05:30,533 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:05:30,539 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:05:30,554 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:05:30,584 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:05:30,585 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:05:30,585 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:05:30,585 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:05:30,586 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:05:30,586 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:05:30,586 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:05:30,586 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:05:30,605 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-10-25 23:05:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:05:30,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:30,614 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 23:05:30,615 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:30,622 INFO L82 PathProgramCache]: Analyzing trace with hash 495161476, now seen corresponding path program 1 times [2020-10-25 23:05:30,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:30,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822912963] [2020-10-25 23:05:30,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:30,996 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 23:05:30,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822912963] [2020-10-25 23:05:30,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:30,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:05:30,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853497407] [2020-10-25 23:05:31,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:05:31,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:31,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:05:31,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:05:31,026 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 2 states. [2020-10-25 23:05:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:31,058 INFO L93 Difference]: Finished difference Result 160 states and 243 transitions. [2020-10-25 23:05:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:05:31,060 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:05:31,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:31,073 INFO L225 Difference]: With dead ends: 160 [2020-10-25 23:05:31,073 INFO L226 Difference]: Without dead ends: 78 [2020-10-25 23:05:31,078 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 23:05:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-25 23:05:31,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-10-25 23:05:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-25 23:05:31,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-10-25 23:05:31,129 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-10-25 23:05:31,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:31,129 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-10-25 23:05:31,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:05:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-10-25 23:05:31,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:05:31,131 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:31,131 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 23:05:31,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:05:31,131 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:31,132 INFO L82 PathProgramCache]: Analyzing trace with hash 276325507, now seen corresponding path program 1 times [2020-10-25 23:05:31,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:31,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736209062] [2020-10-25 23:05:31,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:31,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:31,242 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 23:05:31,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736209062] [2020-10-25 23:05:31,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:31,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:05:31,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716979414] [2020-10-25 23:05:31,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:05:31,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:31,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:05:31,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:05:31,249 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2020-10-25 23:05:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:31,273 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-10-25 23:05:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:05:31,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:05:31,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:31,275 INFO L225 Difference]: With dead ends: 78 [2020-10-25 23:05:31,276 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 23:05:31,278 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 23:05:31,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 23:05:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 23:05:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 23:05:31,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-10-25 23:05:31,304 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-10-25 23:05:31,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:31,305 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-10-25 23:05:31,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:05:31,305 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-10-25 23:05:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:05:31,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:31,308 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 23:05:31,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:05:31,310 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:31,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1153900874, now seen corresponding path program 1 times [2020-10-25 23:05:31,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:31,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95926848] [2020-10-25 23:05:31,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:31,424 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 23:05:31,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95926848] [2020-10-25 23:05:31,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:31,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:05:31,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609047666] [2020-10-25 23:05:31,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:05:31,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:31,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:05:31,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:05:31,428 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 6 states. [2020-10-25 23:05:31,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:31,632 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-10-25 23:05:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:05:31,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-25 23:05:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:31,635 INFO L225 Difference]: With dead ends: 65 [2020-10-25 23:05:31,637 INFO L226 Difference]: Without dead ends: 36 [2020-10-25 23:05:31,639 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 23:05:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-25 23:05:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-25 23:05:31,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-25 23:05:31,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-10-25 23:05:31,651 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-10-25 23:05:31,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:31,652 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-10-25 23:05:31,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:05:31,652 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-10-25 23:05:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:05:31,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:31,654 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 23:05:31,655 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:05:31,655 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:31,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:31,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1264883623, now seen corresponding path program 1 times [2020-10-25 23:05:31,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:31,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736496484] [2020-10-25 23:05:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:31,800 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 23:05:31,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736496484] [2020-10-25 23:05:31,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:31,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:05:31,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617211732] [2020-10-25 23:05:31,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:05:31,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:31,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:05:31,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:05:31,806 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-10-25 23:05:31,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:31,833 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-10-25 23:05:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:05:31,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-25 23:05:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:31,835 INFO L225 Difference]: With dead ends: 87 [2020-10-25 23:05:31,835 INFO L226 Difference]: Without dead ends: 58 [2020-10-25 23:05:31,835 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 23:05:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-25 23:05:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-10-25 23:05:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-25 23:05:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-10-25 23:05:31,845 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-10-25 23:05:31,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:31,845 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-10-25 23:05:31,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:05:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-10-25 23:05:31,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-25 23:05:31,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:31,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:31,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:05:31,848 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:31,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:31,848 INFO L82 PathProgramCache]: Analyzing trace with hash -703728504, now seen corresponding path program 1 times [2020-10-25 23:05:31,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:31,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537827231] [2020-10-25 23:05:31,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:31,941 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 23:05:31,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537827231] [2020-10-25 23:05:31,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:31,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:05:31,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349662719] [2020-10-25 23:05:31,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:05:31,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:31,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:05:31,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:05:31,945 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-10-25 23:05:32,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:32,019 INFO L93 Difference]: Finished difference Result 145 states and 205 transitions. [2020-10-25 23:05:32,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:05:32,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-25 23:05:32,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:32,021 INFO L225 Difference]: With dead ends: 145 [2020-10-25 23:05:32,021 INFO L226 Difference]: Without dead ends: 96 [2020-10-25 23:05:32,023 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 23:05:32,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-10-25 23:05:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 59. [2020-10-25 23:05:32,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-25 23:05:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2020-10-25 23:05:32,041 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 31 [2020-10-25 23:05:32,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:32,041 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2020-10-25 23:05:32,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:05:32,042 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2020-10-25 23:05:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-25 23:05:32,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:32,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:32,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:05:32,044 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:32,045 INFO L82 PathProgramCache]: Analyzing trace with hash 229735205, now seen corresponding path program 1 times [2020-10-25 23:05:32,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:32,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522898838] [2020-10-25 23:05:32,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:32,132 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 23:05:32,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522898838] [2020-10-25 23:05:32,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:32,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:05:32,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387347188] [2020-10-25 23:05:32,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:05:32,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:32,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:05:32,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:05:32,137 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 5 states. [2020-10-25 23:05:32,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:32,270 INFO L93 Difference]: Finished difference Result 275 states and 393 transitions. [2020-10-25 23:05:32,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-25 23:05:32,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-25 23:05:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:32,278 INFO L225 Difference]: With dead ends: 275 [2020-10-25 23:05:32,279 INFO L226 Difference]: Without dead ends: 223 [2020-10-25 23:05:32,281 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:05:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-10-25 23:05:32,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 103. [2020-10-25 23:05:32,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-25 23:05:32,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2020-10-25 23:05:32,302 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 31 [2020-10-25 23:05:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:32,303 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2020-10-25 23:05:32,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:05:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2020-10-25 23:05:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-25 23:05:32,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:32,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:32,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:05:32,306 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1892298141, now seen corresponding path program 1 times [2020-10-25 23:05:32,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:32,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822170252] [2020-10-25 23:05:32,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:32,432 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 23:05:32,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822170252] [2020-10-25 23:05:32,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:32,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:05:32,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354934458] [2020-10-25 23:05:32,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:05:32,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:32,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:05:32,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:05:32,435 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 5 states. [2020-10-25 23:05:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:32,569 INFO L93 Difference]: Finished difference Result 376 states and 523 transitions. [2020-10-25 23:05:32,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:05:32,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-25 23:05:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:32,574 INFO L225 Difference]: With dead ends: 376 [2020-10-25 23:05:32,574 INFO L226 Difference]: Without dead ends: 280 [2020-10-25 23:05:32,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:05:32,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-25 23:05:32,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-10-25 23:05:32,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-25 23:05:32,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-10-25 23:05:32,609 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-10-25 23:05:32,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:32,611 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-10-25 23:05:32,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:05:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-10-25 23:05:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-25 23:05:32,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:32,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:32,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:05:32,616 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:32,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:32,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1659899010, now seen corresponding path program 1 times [2020-10-25 23:05:32,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:32,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346833740] [2020-10-25 23:05:32,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:32,696 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 23:05:32,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346833740] [2020-10-25 23:05:32,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:32,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:05:32,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030621672] [2020-10-25 23:05:32,700 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:05:32,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:32,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:05:32,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:05:32,701 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 4 states. [2020-10-25 23:05:32,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:32,752 INFO L93 Difference]: Finished difference Result 243 states and 331 transitions. [2020-10-25 23:05:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:05:32,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-25 23:05:32,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:32,754 INFO L225 Difference]: With dead ends: 243 [2020-10-25 23:05:32,754 INFO L226 Difference]: Without dead ends: 148 [2020-10-25 23:05:32,755 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 23:05:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-25 23:05:32,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 106. [2020-10-25 23:05:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-25 23:05:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-10-25 23:05:32,781 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-10-25 23:05:32,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:32,783 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-10-25 23:05:32,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:05:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-10-25 23:05:32,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-25 23:05:32,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:32,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:32,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:05:32,791 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:32,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:32,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1073092996, now seen corresponding path program 1 times [2020-10-25 23:05:32,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:32,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500036404] [2020-10-25 23:05:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:32,853 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 23:05:32,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500036404] [2020-10-25 23:05:32,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:32,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:05:32,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832437342] [2020-10-25 23:05:32,856 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:05:32,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:32,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:05:32,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:05:32,858 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2020-10-25 23:05:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:32,892 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2020-10-25 23:05:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:05:32,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-25 23:05:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:32,895 INFO L225 Difference]: With dead ends: 253 [2020-10-25 23:05:32,895 INFO L226 Difference]: Without dead ends: 154 [2020-10-25 23:05:32,896 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 23:05:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-25 23:05:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-25 23:05:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-25 23:05:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-10-25 23:05:32,915 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2020-10-25 23:05:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:32,915 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-10-25 23:05:32,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:05:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-10-25 23:05:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-25 23:05:32,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:32,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:32,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 23:05:32,922 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:32,923 INFO L82 PathProgramCache]: Analyzing trace with hash -389810492, now seen corresponding path program 1 times [2020-10-25 23:05:32,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:32,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669266973] [2020-10-25 23:05:32,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:05:32,999 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 23:05:33,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669266973] [2020-10-25 23:05:33,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:05:33,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:05:33,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592634745] [2020-10-25 23:05:33,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:05:33,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:05:33,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:05:33,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:05:33,005 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-10-25 23:05:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:05:33,048 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2020-10-25 23:05:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:05:33,051 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-10-25 23:05:33,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:05:33,053 INFO L225 Difference]: With dead ends: 221 [2020-10-25 23:05:33,053 INFO L226 Difference]: Without dead ends: 219 [2020-10-25 23:05:33,054 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 23:05:33,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-25 23:05:33,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2020-10-25 23:05:33,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-10-25 23:05:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2020-10-25 23:05:33,089 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2020-10-25 23:05:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:05:33,089 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2020-10-25 23:05:33,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:05:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2020-10-25 23:05:33,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-25 23:05:33,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:05:33,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:05:33,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:05:33,091 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:05:33,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:05:33,092 INFO L82 PathProgramCache]: Analyzing trace with hash 149557046, now seen corresponding path program 1 times [2020-10-25 23:05:33,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:05:33,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072474346] [2020-10-25 23:05:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:05:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:05:33,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:05:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:05:33,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:05:33,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:05:33,347 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:05:33,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 23:05:33,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:05:33 BoogieIcfgContainer [2020-10-25 23:05:33,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:05:33,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:05:33,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:05:33,500 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:05:33,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:05:30" (3/4) ... [2020-10-25 23:05:33,504 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:05:33,689 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:05:33,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:05:33,692 INFO L168 Benchmark]: Toolchain (without parser) took 5151.84 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 27.1 MB in the beginning and 43.9 MB in the end (delta: -16.7 MB). Peak memory consumption was 45.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,692 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 48.2 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:05:33,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.51 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 41.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.75 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 38.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,694 INFO L168 Benchmark]: Boogie Preprocessor took 53.23 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 36.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,695 INFO L168 Benchmark]: RCFGBuilder took 1105.14 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 31.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,695 INFO L168 Benchmark]: TraceAbstraction took 2988.34 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 30.9 MB in the beginning and 21.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,696 INFO L168 Benchmark]: Witness Printer took 189.70 ms. Allocated memory is still 86.0 MB. Free memory was 21.4 MB in the beginning and 43.9 MB in the end (delta: -22.5 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:05:33,698 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 48.2 MB. Free memory was 33.2 MB in the beginning and 33.2 MB in the end (delta: 34.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 725.51 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 41.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.75 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 38.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.23 ms. Allocated memory is still 58.7 MB. Free memory was 38.7 MB in the beginning and 36.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1105.14 ms. Allocated memory is still 58.7 MB. Free memory was 36.3 MB in the beginning and 31.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2988.34 ms. Allocated memory was 58.7 MB in the beginning and 86.0 MB in the end (delta: 27.3 MB). Free memory was 30.9 MB in the beginning and 21.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. * Witness Printer took 189.70 ms. Allocated memory is still 86.0 MB. Free memory was 21.4 MB in the beginning and 43.9 MB in the end (delta: -22.5 MB). Peak memory consumption was 2.6 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: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=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}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND TRUE ! pumpRunning [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L167] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L359] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] COND TRUE waterLevel > 0 [L94] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L334] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 659 SDtfs, 742 SDslu, 854 SDs, 0 SdLazy, 108 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 415 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 15829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...