./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product49.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 ab53d3429947c30ff169bac7bc42ee99cd27cfaa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:44:16,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:16,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:16,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:16,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:16,034 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:16,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:16,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:16,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:16,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:16,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:16,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:16,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:16,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:16,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:16,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:16,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:16,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:16,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:16,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:16,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:16,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:16,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:16,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:16,058 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:16,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:16,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:16,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:16,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:16,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:16,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:16,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:16,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:16,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:16,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:16,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:16,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:16,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:16,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:16,075 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:16,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:16,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:16,123 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:16,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:16,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:16,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:16,130 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:16,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:16,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:16,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:16,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:16,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:16,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:16,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:16,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:16,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:16,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:16,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:16,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:16,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:16,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:16,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:16,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:16,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:16,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:16,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:16,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:16,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:16,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:16,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:16,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:16,140 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab53d3429947c30ff169bac7bc42ee99cd27cfaa [2020-10-20 01:44:16,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:16,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:16,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:16,430 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:16,432 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:16,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-10-20 01:44:16,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1cad746f/77018581ce704367a707ba004d889fc4/FLAG6705703a2 [2020-10-20 01:44:17,016 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:17,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-10-20 01:44:17,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1cad746f/77018581ce704367a707ba004d889fc4/FLAG6705703a2 [2020-10-20 01:44:17,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1cad746f/77018581ce704367a707ba004d889fc4 [2020-10-20 01:44:17,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:17,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:17,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:17,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:17,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:17,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4750fe7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17, skipping insertion in model container [2020-10-20 01:44:17,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:17,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:17,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:17,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:17,821 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:17,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:17,983 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:17,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17 WrapperNode [2020-10-20 01:44:17,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:17,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:17,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:17,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:17,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:18,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:18,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:18,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:18,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... [2020-10-20 01:44:18,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:18,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:18,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:18,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:18,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:18,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:18,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:19,173 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:19,174 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-10-20 01:44:19,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19 BoogieIcfgContainer [2020-10-20 01:44:19,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:19,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:19,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:19,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:19,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:17" (1/3) ... [2020-10-20 01:44:19,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f87bb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:19, skipping insertion in model container [2020-10-20 01:44:19,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:17" (2/3) ... [2020-10-20 01:44:19,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f87bb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:19, skipping insertion in model container [2020-10-20 01:44:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19" (3/3) ... [2020-10-20 01:44:19,187 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-10-20 01:44:19,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:19,210 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:19,225 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:19,253 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:19,266 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:19,266 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:19,266 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:19,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:19,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:19,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:19,267 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:19,288 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-10-20 01:44:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:19,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:19,297 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,304 INFO L82 PathProgramCache]: Analyzing trace with hash -948451738, now seen corresponding path program 1 times [2020-10-20 01:44:19,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372508032] [2020-10-20 01:44:19,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:19,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:19,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372508032] [2020-10-20 01:44:19,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:19,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:19,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541978900] [2020-10-20 01:44:19,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:19,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:19,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:19,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:19,656 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-10-20 01:44:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:19,693 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-10-20 01:44:19,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:19,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:19,708 INFO L225 Difference]: With dead ends: 231 [2020-10-20 01:44:19,708 INFO L226 Difference]: Without dead ends: 113 [2020-10-20 01:44:19,713 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:19,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-20 01:44:19,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-20 01:44:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-20 01:44:19,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-10-20 01:44:19,764 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-10-20 01:44:19,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:19,764 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-10-20 01:44:19,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-10-20 01:44:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:19,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:19,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:19,767 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1995208635, now seen corresponding path program 1 times [2020-10-20 01:44:19,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431613574] [2020-10-20 01:44:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:19,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:19,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431613574] [2020-10-20 01:44:19,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:19,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:19,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659638906] [2020-10-20 01:44:19,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:19,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:19,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:19,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:19,921 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-10-20 01:44:19,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:19,950 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-10-20 01:44:19,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:19,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:19,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:19,953 INFO L225 Difference]: With dead ends: 113 [2020-10-20 01:44:19,954 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:44:19,956 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:44:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 01:44:19,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 01:44:19,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-10-20 01:44:19,969 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-10-20 01:44:19,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:19,969 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-10-20 01:44:19,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-10-20 01:44:19,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:19,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:19,973 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] [2020-10-20 01:44:19,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:19,974 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:19,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:19,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-10-20 01:44:19,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:19,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857758391] [2020-10-20 01:44:19,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857758391] [2020-10-20 01:44:20,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:20,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218120411] [2020-10-20 01:44:20,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:20,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:20,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:20,111 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2020-10-20 01:44:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,131 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-10-20 01:44:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:20,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-20 01:44:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,135 INFO L225 Difference]: With dead ends: 88 [2020-10-20 01:44:20,136 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 01:44:20,137 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 [2020-10-20 01:44:20,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 01:44:20,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 01:44:20,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 01:44:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-10-20 01:44:20,148 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-10-20 01:44:20,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,149 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-10-20 01:44:20,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:20,149 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-10-20 01:44:20,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:20,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:20,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:20,152 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,153 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-10-20 01:44:20,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901668754] [2020-10-20 01:44:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901668754] [2020-10-20 01:44:20,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:20,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512478157] [2020-10-20 01:44:20,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:20,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:20,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:20,229 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-10-20 01:44:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,266 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-10-20 01:44:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:20,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,268 INFO L225 Difference]: With dead ends: 109 [2020-10-20 01:44:20,268 INFO L226 Difference]: Without dead ends: 68 [2020-10-20 01:44:20,269 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 [2020-10-20 01:44:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-20 01:44:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-10-20 01:44:20,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-20 01:44:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-10-20 01:44:20,277 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-10-20 01:44:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,278 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-10-20 01:44:20,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-10-20 01:44:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:20,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,279 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] [2020-10-20 01:44:20,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:20,280 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,280 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-10-20 01:44:20,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617835306] [2020-10-20 01:44:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617835306] [2020-10-20 01:44:20,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:20,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048366490] [2020-10-20 01:44:20,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:20,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:20,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:20,346 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-10-20 01:44:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,446 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-10-20 01:44:20,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:20,447 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-20 01:44:20,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,448 INFO L225 Difference]: With dead ends: 175 [2020-10-20 01:44:20,449 INFO L226 Difference]: Without dead ends: 115 [2020-10-20 01:44:20,450 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 [2020-10-20 01:44:20,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-20 01:44:20,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-10-20 01:44:20,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 01:44:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-10-20 01:44:20,460 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-10-20 01:44:20,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,461 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-10-20 01:44:20,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-10-20 01:44:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-20 01:44:20,462 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,462 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] [2020-10-20 01:44:20,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:20,463 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-10-20 01:44:20,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197545106] [2020-10-20 01:44:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197545106] [2020-10-20 01:44:20,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:20,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367026903] [2020-10-20 01:44:20,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:20,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:20,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:20,548 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2020-10-20 01:44:20,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:20,803 INFO L93 Difference]: Finished difference Result 478 states and 677 transitions. [2020-10-20 01:44:20,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-20 01:44:20,803 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-20 01:44:20,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:20,807 INFO L225 Difference]: With dead ends: 478 [2020-10-20 01:44:20,807 INFO L226 Difference]: Without dead ends: 412 [2020-10-20 01:44:20,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:44:20,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-20 01:44:20,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 130. [2020-10-20 01:44:20,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 01:44:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2020-10-20 01:44:20,828 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 30 [2020-10-20 01:44:20,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:20,829 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2020-10-20 01:44:20,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2020-10-20 01:44:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-20 01:44:20,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:20,831 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] [2020-10-20 01:44:20,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:44:20,831 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:20,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:20,832 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2020-10-20 01:44:20,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:20,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608779160] [2020-10-20 01:44:20,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:20,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608779160] [2020-10-20 01:44:20,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:20,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:20,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953476783] [2020-10-20 01:44:20,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:20,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:20,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:20,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:20,907 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand 4 states. [2020-10-20 01:44:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,018 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2020-10-20 01:44:21,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:21,019 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-10-20 01:44:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,020 INFO L225 Difference]: With dead ends: 309 [2020-10-20 01:44:21,020 INFO L226 Difference]: Without dead ends: 185 [2020-10-20 01:44:21,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-20 01:44:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2020-10-20 01:44:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-10-20 01:44:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2020-10-20 01:44:21,037 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 31 [2020-10-20 01:44:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,038 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2020-10-20 01:44:21,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2020-10-20 01:44:21,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-20 01:44:21,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,041 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, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:21,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:21,041 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1612699853, now seen corresponding path program 1 times [2020-10-20 01:44:21,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793116409] [2020-10-20 01:44:21,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-20 01:44:21,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793116409] [2020-10-20 01:44:21,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:21,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:21,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126564596] [2020-10-20 01:44:21,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:21,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:21,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,129 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand 5 states. [2020-10-20 01:44:21,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,200 INFO L93 Difference]: Finished difference Result 365 states and 487 transitions. [2020-10-20 01:44:21,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:21,201 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-10-20 01:44:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,203 INFO L225 Difference]: With dead ends: 365 [2020-10-20 01:44:21,203 INFO L226 Difference]: Without dead ends: 206 [2020-10-20 01:44:21,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:21,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-20 01:44:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2020-10-20 01:44:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-20 01:44:21,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2020-10-20 01:44:21,216 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 50 [2020-10-20 01:44:21,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,217 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2020-10-20 01:44:21,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2020-10-20 01:44:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:44:21,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,219 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, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:21,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:21,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1640111121, now seen corresponding path program 1 times [2020-10-20 01:44:21,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313726460] [2020-10-20 01:44:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:21,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313726460] [2020-10-20 01:44:21,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:21,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:21,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692892670] [2020-10-20 01:44:21,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:21,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:21,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,305 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand 5 states. [2020-10-20 01:44:21,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,373 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2020-10-20 01:44:21,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:21,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-20 01:44:21,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,376 INFO L225 Difference]: With dead ends: 467 [2020-10-20 01:44:21,377 INFO L226 Difference]: Without dead ends: 356 [2020-10-20 01:44:21,377 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 [2020-10-20 01:44:21,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-10-20 01:44:21,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2020-10-20 01:44:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 01:44:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2020-10-20 01:44:21,392 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 51 [2020-10-20 01:44:21,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,392 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2020-10-20 01:44:21,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:21,393 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2020-10-20 01:44:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-20 01:44:21,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,394 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, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:21,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:21,395 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,396 INFO L82 PathProgramCache]: Analyzing trace with hash -2033138131, now seen corresponding path program 1 times [2020-10-20 01:44:21,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248083167] [2020-10-20 01:44:21,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:21,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248083167] [2020-10-20 01:44:21,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:21,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:21,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439717255] [2020-10-20 01:44:21,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:21,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:21,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:21,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:21,455 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand 5 states. [2020-10-20 01:44:21,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:21,605 INFO L93 Difference]: Finished difference Result 368 states and 483 transitions. [2020-10-20 01:44:21,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:21,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-10-20 01:44:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:21,615 INFO L225 Difference]: With dead ends: 368 [2020-10-20 01:44:21,615 INFO L226 Difference]: Without dead ends: 366 [2020-10-20 01:44:21,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-20 01:44:21,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-10-20 01:44:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2020-10-20 01:44:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-20 01:44:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2020-10-20 01:44:21,633 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 51 [2020-10-20 01:44:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:21,634 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2020-10-20 01:44:21,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2020-10-20 01:44:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-20 01:44:21,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:21,636 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:21,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:21,636 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:21,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1174079007, now seen corresponding path program 1 times [2020-10-20 01:44:21,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:21,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769689858] [2020-10-20 01:44:21,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:21,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769689858] [2020-10-20 01:44:21,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371369444] [2020-10-20 01:44:21,902 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 [2020-10-20 01:44:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:22,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:22,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:22,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:22,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-20 01:44:22,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149407170] [2020-10-20 01:44:22,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:22,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:22,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:22,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:22,193 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand 8 states. [2020-10-20 01:44:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:22,513 INFO L93 Difference]: Finished difference Result 561 states and 742 transitions. [2020-10-20 01:44:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-20 01:44:22,514 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-10-20 01:44:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:22,517 INFO L225 Difference]: With dead ends: 561 [2020-10-20 01:44:22,517 INFO L226 Difference]: Without dead ends: 447 [2020-10-20 01:44:22,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-20 01:44:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-10-20 01:44:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 201. [2020-10-20 01:44:22,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-10-20 01:44:22,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-10-20 01:44:22,542 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 52 [2020-10-20 01:44:22,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:22,542 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-10-20 01:44:22,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:22,542 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-10-20 01:44:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-20 01:44:22,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:22,544 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-20 01:44:22,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-20 01:44:22,758 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:22,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:22,758 INFO L82 PathProgramCache]: Analyzing trace with hash -112639176, now seen corresponding path program 2 times [2020-10-20 01:44:22,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:22,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358455473] [2020-10-20 01:44:22,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:22,918 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 01:44:22,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358455473] [2020-10-20 01:44:22,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:22,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:22,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013057306] [2020-10-20 01:44:22,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:22,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:22,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:22,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:22,920 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 5 states. [2020-10-20 01:44:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:23,166 INFO L93 Difference]: Finished difference Result 584 states and 775 transitions. [2020-10-20 01:44:23,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:23,167 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-10-20 01:44:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:23,169 INFO L225 Difference]: With dead ends: 584 [2020-10-20 01:44:23,169 INFO L226 Difference]: Without dead ends: 412 [2020-10-20 01:44:23,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:23,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-10-20 01:44:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 274. [2020-10-20 01:44:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-20 01:44:23,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2020-10-20 01:44:23,201 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 73 [2020-10-20 01:44:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:23,202 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2020-10-20 01:44:23,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2020-10-20 01:44:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-20 01:44:23,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:23,203 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-20 01:44:23,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:44:23,204 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:23,205 INFO L82 PathProgramCache]: Analyzing trace with hash 162120438, now seen corresponding path program 1 times [2020-10-20 01:44:23,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:23,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250986501] [2020-10-20 01:44:23,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:23,273 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-20 01:44:23,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250986501] [2020-10-20 01:44:23,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:23,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:23,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290851781] [2020-10-20 01:44:23,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:23,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:23,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:23,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:23,280 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand 5 states. [2020-10-20 01:44:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:23,349 INFO L93 Difference]: Finished difference Result 483 states and 625 transitions. [2020-10-20 01:44:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:23,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-10-20 01:44:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:23,350 INFO L225 Difference]: With dead ends: 483 [2020-10-20 01:44:23,350 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:23,352 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 [2020-10-20 01:44:23,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:23,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:23,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:23,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-10-20 01:44:23,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:23,353 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:23,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:23,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:23,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:44:23,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:23,570 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-10-20 01:44:23,774 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-10-20 01:44:23,951 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 98 [2020-10-20 01:44:24,077 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 66 [2020-10-20 01:44:24,343 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 97 [2020-10-20 01:44:24,461 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-10-20 01:44:24,781 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-10-20 01:44:25,210 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-10-20 01:44:25,486 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 16 [2020-10-20 01:44:25,643 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2020-10-20 01:44:25,827 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 18 [2020-10-20 01:44:25,944 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 18 [2020-10-20 01:44:26,248 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 9 [2020-10-20 01:44:26,690 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 21 [2020-10-20 01:44:26,717 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L333(lines 333 350) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 350) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L333-2(lines 333 350) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,718 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-3(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-5(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-6(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-8(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-9(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-11(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-12(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,719 INFO L274 CegarLoopResult]: For program point L435-14(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L435-15(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L435-17(lines 435 439) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L337(lines 337 345) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L337-1(lines 337 345) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 345) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L270 CegarLoopResult]: At program point L174-2(lines 174 188) the Hoare annotation is: false [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point L505(lines 505 516) no Hoare annotation was computed. [2020-10-20 01:44:26,720 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,721 INFO L274 CegarLoopResult]: For program point L307(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,721 INFO L274 CegarLoopResult]: For program point L307-1(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,721 INFO L274 CegarLoopResult]: For program point L307-2(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,722 INFO L274 CegarLoopResult]: For program point L307-3(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,722 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-20 01:44:26,722 INFO L274 CegarLoopResult]: For program point L307-4(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,722 INFO L274 CegarLoopResult]: For program point L142(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,723 INFO L274 CegarLoopResult]: For program point L307-5(lines 307 324) no Hoare annotation was computed. [2020-10-20 01:44:26,723 INFO L274 CegarLoopResult]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,723 INFO L274 CegarLoopResult]: For program point L142-2(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,723 INFO L274 CegarLoopResult]: For program point L142-3(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,723 INFO L274 CegarLoopResult]: For program point L142-4(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,724 INFO L274 CegarLoopResult]: For program point L142-5(lines 142 148) no Hoare annotation was computed. [2020-10-20 01:44:26,724 INFO L270 CegarLoopResult]: At program point L275(lines 274 293) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-10-20 01:44:26,724 INFO L274 CegarLoopResult]: For program point L275-1(lines 275 281) no Hoare annotation was computed. [2020-10-20 01:44:26,724 INFO L270 CegarLoopResult]: At program point L275-2(lines 274 293) the Hoare annotation is: false [2020-10-20 01:44:26,724 INFO L270 CegarLoopResult]: At program point L275-3(lines 274 293) the Hoare annotation is: false [2020-10-20 01:44:26,725 INFO L274 CegarLoopResult]: For program point L77(lines 77 81) no Hoare annotation was computed. [2020-10-20 01:44:26,725 INFO L274 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-10-20 01:44:26,725 INFO L270 CegarLoopResult]: At program point L573-1(lines 1 955) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1) (and .cse0 (<= 2 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-10-20 01:44:26,725 INFO L274 CegarLoopResult]: For program point L573-2(lines 573 586) no Hoare annotation was computed. [2020-10-20 01:44:26,725 INFO L270 CegarLoopResult]: At program point L573-3(lines 1 955) the Hoare annotation is: false [2020-10-20 01:44:26,726 INFO L270 CegarLoopResult]: At program point L441(lines 426 444) the Hoare annotation is: false [2020-10-20 01:44:26,726 INFO L274 CegarLoopResult]: For program point L573-4(lines 573 586) no Hoare annotation was computed. [2020-10-20 01:44:26,726 INFO L270 CegarLoopResult]: At program point L441-1(lines 426 444) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-10-20 01:44:26,726 INFO L270 CegarLoopResult]: At program point L573-5(lines 1 955) the Hoare annotation is: false [2020-10-20 01:44:26,727 INFO L270 CegarLoopResult]: At program point L441-2(lines 426 444) the Hoare annotation is: false [2020-10-20 01:44:26,727 INFO L270 CegarLoopResult]: At program point L441-3(lines 426 444) the Hoare annotation is: false [2020-10-20 01:44:26,727 INFO L270 CegarLoopResult]: At program point L441-4(lines 426 444) the Hoare annotation is: false [2020-10-20 01:44:26,727 INFO L270 CegarLoopResult]: At program point L441-5(lines 426 444) the Hoare annotation is: false [2020-10-20 01:44:26,727 INFO L274 CegarLoopResult]: For program point L178(lines 178 182) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L178-1(lines 275 281) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L476(lines 475 520) no Hoare annotation was computed. [2020-10-20 01:44:26,728 INFO L274 CegarLoopResult]: For program point L311(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,729 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,729 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,729 INFO L274 CegarLoopResult]: For program point L311-3(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,729 INFO L274 CegarLoopResult]: For program point L311-4(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,729 INFO L274 CegarLoopResult]: For program point L311-5(lines 311 319) no Hoare annotation was computed. [2020-10-20 01:44:26,730 INFO L274 CegarLoopResult]: For program point L477(lines 477 481) no Hoare annotation was computed. [2020-10-20 01:44:26,730 INFO L270 CegarLoopResult]: At program point L147(lines 138 151) the Hoare annotation is: false [2020-10-20 01:44:26,730 INFO L270 CegarLoopResult]: At program point L147-1(lines 138 151) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-10-20 01:44:26,730 INFO L270 CegarLoopResult]: At program point L147-2(lines 138 151) the Hoare annotation is: false [2020-10-20 01:44:26,730 INFO L270 CegarLoopResult]: At program point L147-3(lines 138 151) the Hoare annotation is: false [2020-10-20 01:44:26,731 INFO L270 CegarLoopResult]: At program point L147-4(lines 138 151) the Hoare annotation is: false [2020-10-20 01:44:26,731 INFO L270 CegarLoopResult]: At program point L147-5(lines 138 151) the Hoare annotation is: false [2020-10-20 01:44:26,731 INFO L274 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-10-20 01:44:26,731 INFO L274 CegarLoopResult]: For program point L511(lines 511 515) no Hoare annotation was computed. [2020-10-20 01:44:26,731 INFO L274 CegarLoopResult]: For program point L577-2(lines 577 583) no Hoare annotation was computed. [2020-10-20 01:44:26,731 INFO L274 CegarLoopResult]: For program point L511-2(lines 275 281) no Hoare annotation was computed. [2020-10-20 01:44:26,732 INFO L274 CegarLoopResult]: For program point L577-4(lines 577 583) no Hoare annotation was computed. [2020-10-20 01:44:26,732 INFO L270 CegarLoopResult]: At program point L282(lines 282 288) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1))) [2020-10-20 01:44:26,732 INFO L270 CegarLoopResult]: At program point L282-1(lines 282 288) the Hoare annotation is: false [2020-10-20 01:44:26,732 INFO L270 CegarLoopResult]: At program point L282-2(lines 282 288) the Hoare annotation is: false [2020-10-20 01:44:26,733 INFO L274 CegarLoopResult]: For program point L250(lines 250 257) no Hoare annotation was computed. [2020-10-20 01:44:26,733 INFO L277 CegarLoopResult]: At program point L250-1(lines 250 257) the Hoare annotation is: true [2020-10-20 01:44:26,733 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:26,733 INFO L274 CegarLoopResult]: For program point L485(lines 485 491) no Hoare annotation was computed. [2020-10-20 01:44:26,733 INFO L270 CegarLoopResult]: At program point L485-1(lines 485 491) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-10-20 01:44:26,734 INFO L270 CegarLoopResult]: At program point L386(lines 381 389) the Hoare annotation is: false [2020-10-20 01:44:26,734 INFO L270 CegarLoopResult]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-10-20 01:44:26,734 INFO L270 CegarLoopResult]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-10-20 01:44:26,734 INFO L274 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-10-20 01:44:26,734 INFO L270 CegarLoopResult]: At program point L552(lines 1 955) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:26,735 INFO L274 CegarLoopResult]: For program point L454(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,735 INFO L274 CegarLoopResult]: For program point L454-2(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,735 INFO L274 CegarLoopResult]: For program point L454-3(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,735 INFO L274 CegarLoopResult]: For program point L454-5(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,735 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:26,736 INFO L274 CegarLoopResult]: For program point L454-6(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,736 INFO L270 CegarLoopResult]: At program point L223(lines 219 225) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:26,736 INFO L274 CegarLoopResult]: For program point L454-8(lines 454 458) no Hoare annotation was computed. [2020-10-20 01:44:26,736 INFO L270 CegarLoopResult]: At program point L157(lines 152 160) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:26,737 INFO L270 CegarLoopResult]: At program point L157-1(lines 152 160) the Hoare annotation is: false [2020-10-20 01:44:26,737 INFO L270 CegarLoopResult]: At program point L157-2(lines 152 160) the Hoare annotation is: false [2020-10-20 01:44:26,737 INFO L270 CegarLoopResult]: At program point L521(lines 474 522) the Hoare annotation is: false [2020-10-20 01:44:26,737 INFO L277 CegarLoopResult]: At program point L259(lines 240 262) the Hoare annotation is: true [2020-10-20 01:44:26,737 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:26,738 INFO L270 CegarLoopResult]: At program point L460(lines 445 463) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-10-20 01:44:26,738 INFO L270 CegarLoopResult]: At program point L460-1(lines 445 463) the Hoare annotation is: false [2020-10-20 01:44:26,738 INFO L270 CegarLoopResult]: At program point L460-2(lines 445 463) the Hoare annotation is: false [2020-10-20 01:44:26,738 INFO L270 CegarLoopResult]: At program point L560(lines 555 563) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-20 01:44:26,739 INFO L274 CegarLoopResult]: For program point L65(lines 65 69) no Hoare annotation was computed. [2020-10-20 01:44:26,739 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:26,739 INFO L274 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-10-20 01:44:26,739 INFO L274 CegarLoopResult]: For program point L65-6(lines 65 69) no Hoare annotation was computed. [2020-10-20 01:44:26,740 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:26,740 INFO L274 CegarLoopResult]: For program point L495(lines 495 501) no Hoare annotation was computed. [2020-10-20 01:44:26,740 INFO L270 CegarLoopResult]: At program point L495-1(lines 495 501) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-10-20 01:44:26,740 INFO L270 CegarLoopResult]: At program point L134(lines 129 137) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2))) [2020-10-20 01:44:26,741 INFO L270 CegarLoopResult]: At program point L134-1(lines 129 137) the Hoare annotation is: false [2020-10-20 01:44:26,741 INFO L270 CegarLoopResult]: At program point L134-2(lines 129 137) the Hoare annotation is: false [2020-10-20 01:44:26,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:26 BoogieIcfgContainer [2020-10-20 01:44:26,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:26,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:26,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:26,767 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:26,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:19" (3/4) ... [2020-10-20 01:44:26,772 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:26,802 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:26,804 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:26,805 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:26,806 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:26,807 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:26,808 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:26,809 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:26,850 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) [2020-10-20 01:44:26,855 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-10-20 01:44:26,856 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-10-20 01:44:26,856 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:26,863 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-10-20 01:44:26,863 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-10-20 01:44:26,999 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:27,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:27,001 INFO L168 Benchmark]: Toolchain (without parser) took 9720.41 ms. Allocated memory was 43.5 MB in the beginning and 121.6 MB in the end (delta: 78.1 MB). Free memory was 22.5 MB in the beginning and 64.2 MB in the end (delta: -41.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,002 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 33.0 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.55 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.7 MB in the beginning and 26.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.65 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 23.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,003 INFO L168 Benchmark]: Boogie Preprocessor took 50.20 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 20.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,004 INFO L168 Benchmark]: RCFGBuilder took 1070.16 ms. Allocated memory was 46.1 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Free memory was 20.0 MB in the beginning and 15.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,004 INFO L168 Benchmark]: TraceAbstraction took 7588.11 ms. Allocated memory was 49.3 MB in the beginning and 121.6 MB in the end (delta: 72.4 MB). Free memory was 14.3 MB in the beginning and 77.6 MB in the end (delta: -63.3 MB). Peak memory consumption was 66.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,004 INFO L168 Benchmark]: Witness Printer took 233.11 ms. Allocated memory is still 121.6 MB. Free memory was 77.6 MB in the beginning and 64.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:27,010 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 33.0 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 47.7 kB). Peak memory consumption was 47.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 696.55 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.7 MB in the beginning and 26.8 MB in the end (delta: -5.2 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 71.65 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 23.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 50.20 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 20.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1070.16 ms. Allocated memory was 46.1 MB in the beginning and 49.3 MB in the end (delta: 3.1 MB). Free memory was 20.0 MB in the beginning and 15.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7588.11 ms. Allocated memory was 49.3 MB in the beginning and 121.6 MB in the end (delta: 72.4 MB). Free memory was 14.3 MB in the beginning and 77.6 MB in the end (delta: -63.3 MB). Peak memory consumption was 66.4 MB. Max. memory is 14.3 GB. * Witness Printer took 233.11 ms. Allocated memory is still 121.6 MB. Free memory was 77.6 MB in the beginning and 64.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 2144 SDslu, 2362 SDs, 0 SdLazy, 386 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, 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, 13 MinimizatonAttempts, 1230 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 115 NumberOfFragments, 308 HoareAnnotationTreeSize, 42 FomulaSimplifications, 1402475 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 42 FomulaSimplificationsInter, 71795 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 43947 SizeOfPredicates, 4 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 162/168 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 correct! Received shutdown request...