./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product60.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_product60.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 e45e56c1689a2d141d3728e45b37f6229eb5b2a7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:44:24,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:44:24,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:44:24,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:44:24,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:44:24,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:44:24,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:44:24,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:44:24,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:44:24,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:44:24,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:44:24,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:44:24,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:44:24,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:44:24,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:44:24,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:44:24,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:44:24,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:44:24,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:44:25,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:44:25,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:44:25,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:44:25,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:44:25,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:44:25,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:44:25,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:44:25,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:44:25,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:44:25,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:44:25,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:44:25,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:44:25,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:44:25,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:44:25,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:44:25,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:44:25,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:44:25,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:44:25,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:44:25,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:44:25,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:44:25,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:44:25,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:44:25,071 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:44:25,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:44:25,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:44:25,073 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:44:25,073 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:44:25,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:44:25,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:44:25,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:44:25,074 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:44:25,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:44:25,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:44:25,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:44:25,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:44:25,076 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:44:25,076 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:44:25,076 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:44:25,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:44:25,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:44:25,077 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:44:25,077 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:44:25,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:44:25,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:25,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:44:25,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:44:25,079 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:44:25,079 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:44:25,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:44:25,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:44:25,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:44:25,080 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 -> e45e56c1689a2d141d3728e45b37f6229eb5b2a7 [2020-10-20 01:44:25,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:44:25,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:44:25,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:44:25,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:44:25,330 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:44:25,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-10-20 01:44:25,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c30aba0e/e7656afe9073469d9f37320c2a00aa76/FLAG086909507 [2020-10-20 01:44:25,936 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:44:25,937 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2020-10-20 01:44:25,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c30aba0e/e7656afe9073469d9f37320c2a00aa76/FLAG086909507 [2020-10-20 01:44:26,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c30aba0e/e7656afe9073469d9f37320c2a00aa76 [2020-10-20 01:44:26,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:44:26,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:44:26,298 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:26,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:44:26,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:44:26,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:26,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642a6963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26, skipping insertion in model container [2020-10-20 01:44:26,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:26,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:44:26,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:44:26,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:26,833 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:44:26,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:44:26,953 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:44:26,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26 WrapperNode [2020-10-20 01:44:26,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:44:26,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:26,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:44:26,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:44:26,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:26,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:44:27,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:44:27,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:44:27,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:44:27,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... [2020-10-20 01:44:27,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:44:27,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:44:27,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:44:27,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:44:27,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:44:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:44:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:44:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:44:27,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:44:28,314 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:44:28,314 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-10-20 01:44:28,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:28 BoogieIcfgContainer [2020-10-20 01:44:28,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:44:28,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:44:28,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:44:28,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:44:28,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:44:26" (1/3) ... [2020-10-20 01:44:28,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6572df35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:28, skipping insertion in model container [2020-10-20 01:44:28,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:44:26" (2/3) ... [2020-10-20 01:44:28,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6572df35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:44:28, skipping insertion in model container [2020-10-20 01:44:28,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:28" (3/3) ... [2020-10-20 01:44:28,326 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2020-10-20 01:44:28,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:44:28,347 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:44:28,357 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:44:28,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:44:28,385 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:44:28,385 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:44:28,387 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:44:28,387 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:44:28,387 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:44:28,387 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:44:28,388 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:44:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-20 01:44:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:44:28,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:28,429 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,436 INFO L82 PathProgramCache]: Analyzing trace with hash -738998692, now seen corresponding path program 1 times [2020-10-20 01:44:28,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437244803] [2020-10-20 01:44:28,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:28,715 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 01:44:28,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437244803] [2020-10-20 01:44:28,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:28,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:28,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385852009] [2020-10-20 01:44:28,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:44:28,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:28,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:44:28,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:44:28,752 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-10-20 01:44:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:28,794 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-10-20 01:44:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:44:28,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-20 01:44:28,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:28,813 INFO L225 Difference]: With dead ends: 271 [2020-10-20 01:44:28,814 INFO L226 Difference]: Without dead ends: 133 [2020-10-20 01:44:28,819 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 01:44:28,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-20 01:44:28,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-20 01:44:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-20 01:44:28,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-10-20 01:44:28,884 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2020-10-20 01:44:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:28,885 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-10-20 01:44:28,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:44:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-10-20 01:44:28,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 01:44:28,887 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:28,887 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 01:44:28,888 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:44:28,888 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:28,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:28,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1785755589, now seen corresponding path program 1 times [2020-10-20 01:44:28,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:28,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281407396] [2020-10-20 01:44:28,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,053 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 01:44:29,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281407396] [2020-10-20 01:44:29,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:44:29,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791434379] [2020-10-20 01:44:29,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:29,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:29,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:29,059 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-10-20 01:44:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,075 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-10-20 01:44:29,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:29,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-20 01:44:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,077 INFO L225 Difference]: With dead ends: 133 [2020-10-20 01:44:29,077 INFO L226 Difference]: Without dead ends: 55 [2020-10-20 01:44:29,079 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 01:44:29,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-20 01:44:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-20 01:44:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-20 01:44:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-10-20 01:44:29,086 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2020-10-20 01:44:29,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,086 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-10-20 01:44:29,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-10-20 01:44:29,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 01:44:29,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,088 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 01:44:29,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:44:29,089 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,089 INFO L82 PathProgramCache]: Analyzing trace with hash 934734913, now seen corresponding path program 1 times [2020-10-20 01:44:29,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153093116] [2020-10-20 01:44:29,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,184 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 01:44:29,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153093116] [2020-10-20 01:44:29,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:29,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990130074] [2020-10-20 01:44:29,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:29,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:29,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:29,187 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 5 states. [2020-10-20 01:44:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,286 INFO L93 Difference]: Finished difference Result 127 states and 186 transitions. [2020-10-20 01:44:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:29,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-20 01:44:29,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,288 INFO L225 Difference]: With dead ends: 127 [2020-10-20 01:44:29,289 INFO L226 Difference]: Without dead ends: 78 [2020-10-20 01:44:29,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 01:44:29,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-20 01:44:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2020-10-20 01:44:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-20 01:44:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2020-10-20 01:44:29,305 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2020-10-20 01:44:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,305 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2020-10-20 01:44:29,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2020-10-20 01:44:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:44:29,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,307 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 01:44:29,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:44:29,308 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,309 INFO L82 PathProgramCache]: Analyzing trace with hash -2102865864, now seen corresponding path program 1 times [2020-10-20 01:44:29,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700180052] [2020-10-20 01:44:29,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,367 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 01:44:29,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700180052] [2020-10-20 01:44:29,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:44:29,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298752185] [2020-10-20 01:44:29,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:44:29,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:44:29,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:44:29,370 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand 3 states. [2020-10-20 01:44:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:29,436 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2020-10-20 01:44:29,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:44:29,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:44:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:29,439 INFO L225 Difference]: With dead ends: 163 [2020-10-20 01:44:29,439 INFO L226 Difference]: Without dead ends: 95 [2020-10-20 01:44:29,440 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 01:44:29,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-20 01:44:29,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-10-20 01:44:29,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-20 01:44:29,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2020-10-20 01:44:29,453 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2020-10-20 01:44:29,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:29,453 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2020-10-20 01:44:29,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:44:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2020-10-20 01:44:29,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:44:29,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:29,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:29,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:44:29,456 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:29,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:29,457 INFO L82 PathProgramCache]: Analyzing trace with hash 379959382, now seen corresponding path program 1 times [2020-10-20 01:44:29,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:29,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988921002] [2020-10-20 01:44:29,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:29,552 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 01:44:29,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988921002] [2020-10-20 01:44:29,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:29,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-20 01:44:29,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719514426] [2020-10-20 01:44:29,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 01:44:29,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:29,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 01:44:29,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:44:29,555 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand 8 states. [2020-10-20 01:44:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,027 INFO L93 Difference]: Finished difference Result 599 states and 872 transitions. [2020-10-20 01:44:30,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:44:30,028 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-10-20 01:44:30,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,031 INFO L225 Difference]: With dead ends: 599 [2020-10-20 01:44:30,032 INFO L226 Difference]: Without dead ends: 512 [2020-10-20 01:44:30,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-20 01:44:30,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-10-20 01:44:30,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 231. [2020-10-20 01:44:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-10-20 01:44:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 322 transitions. [2020-10-20 01:44:30,064 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 322 transitions. Word has length 25 [2020-10-20 01:44:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,065 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 322 transitions. [2020-10-20 01:44:30,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 01:44:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 322 transitions. [2020-10-20 01:44:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-20 01:44:30,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:44:30,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:44:30,070 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:30,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:30,070 INFO L82 PathProgramCache]: Analyzing trace with hash 382518124, now seen corresponding path program 1 times [2020-10-20 01:44:30,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:30,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413893480] [2020-10-20 01:44:30,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:30,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413893480] [2020-10-20 01:44:30,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953259604] [2020-10-20 01:44:30,161 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 01:44:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 01:44:30,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:44:30,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-20 01:44:30,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-20 01:44:30,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437484133] [2020-10-20 01:44:30,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:30,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:30,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:30,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:30,390 INFO L87 Difference]: Start difference. First operand 231 states and 322 transitions. Second operand 4 states. [2020-10-20 01:44:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:30,562 INFO L93 Difference]: Finished difference Result 516 states and 733 transitions. [2020-10-20 01:44:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:30,563 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-10-20 01:44:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:30,565 INFO L225 Difference]: With dead ends: 516 [2020-10-20 01:44:30,565 INFO L226 Difference]: Without dead ends: 353 [2020-10-20 01:44:30,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-20 01:44:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2020-10-20 01:44:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-10-20 01:44:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 481 transitions. [2020-10-20 01:44:30,594 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 481 transitions. Word has length 41 [2020-10-20 01:44:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:30,594 INFO L481 AbstractCegarLoop]: Abstraction has 341 states and 481 transitions. [2020-10-20 01:44:30,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:30,595 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 481 transitions. [2020-10-20 01:44:30,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 01:44:30,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:30,598 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, 1, 1, 1] [2020-10-20 01:44:30,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-10-20 01:44:30,813 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:30,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:30,813 INFO L82 PathProgramCache]: Analyzing trace with hash -566412756, now seen corresponding path program 1 times [2020-10-20 01:44:30,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:30,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112617149] [2020-10-20 01:44:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:30,913 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 01:44:30,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112617149] [2020-10-20 01:44:30,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:30,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:30,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644269931] [2020-10-20 01:44:30,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:30,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:30,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:30,917 INFO L87 Difference]: Start difference. First operand 341 states and 481 transitions. Second operand 5 states. [2020-10-20 01:44:31,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,016 INFO L93 Difference]: Finished difference Result 1051 states and 1472 transitions. [2020-10-20 01:44:31,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:31,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-20 01:44:31,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,021 INFO L225 Difference]: With dead ends: 1051 [2020-10-20 01:44:31,022 INFO L226 Difference]: Without dead ends: 716 [2020-10-20 01:44:31,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:44:31,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-20 01:44:31,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 362. [2020-10-20 01:44:31,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-20 01:44:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 502 transitions. [2020-10-20 01:44:31,088 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 502 transitions. Word has length 53 [2020-10-20 01:44:31,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,088 INFO L481 AbstractCegarLoop]: Abstraction has 362 states and 502 transitions. [2020-10-20 01:44:31,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,089 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 502 transitions. [2020-10-20 01:44:31,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-20 01:44:31,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,091 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, 1, 1, 1] [2020-10-20 01:44:31,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 01:44:31,095 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,096 INFO L82 PathProgramCache]: Analyzing trace with hash -638799314, now seen corresponding path program 1 times [2020-10-20 01:44:31,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411113279] [2020-10-20 01:44:31,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,153 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 01:44:31,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411113279] [2020-10-20 01:44:31,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:31,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:44:31,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321017798] [2020-10-20 01:44:31,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:44:31,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:44:31,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:44:31,156 INFO L87 Difference]: Start difference. First operand 362 states and 502 transitions. Second operand 4 states. [2020-10-20 01:44:31,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,245 INFO L93 Difference]: Finished difference Result 840 states and 1169 transitions. [2020-10-20 01:44:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:44:31,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-20 01:44:31,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,248 INFO L225 Difference]: With dead ends: 840 [2020-10-20 01:44:31,249 INFO L226 Difference]: Without dead ends: 484 [2020-10-20 01:44:31,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-10-20 01:44:31,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 316. [2020-10-20 01:44:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-10-20 01:44:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 434 transitions. [2020-10-20 01:44:31,277 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 434 transitions. Word has length 53 [2020-10-20 01:44:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,278 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 434 transitions. [2020-10-20 01:44:31,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:44:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 434 transitions. [2020-10-20 01:44:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:31,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,279 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, 1, 1] [2020-10-20 01:44:31,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 01:44:31,280 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1204098062, now seen corresponding path program 1 times [2020-10-20 01:44:31,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809122024] [2020-10-20 01:44:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,351 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 01:44:31,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809122024] [2020-10-20 01:44:31,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:31,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:31,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921627880] [2020-10-20 01:44:31,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:31,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:31,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:31,354 INFO L87 Difference]: Start difference. First operand 316 states and 434 transitions. Second operand 5 states. [2020-10-20 01:44:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,552 INFO L93 Difference]: Finished difference Result 1158 states and 1614 transitions. [2020-10-20 01:44:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:44:31,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-20 01:44:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,557 INFO L225 Difference]: With dead ends: 1158 [2020-10-20 01:44:31,558 INFO L226 Difference]: Without dead ends: 890 [2020-10-20 01:44:31,559 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 01:44:31,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-10-20 01:44:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 322. [2020-10-20 01:44:31,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-20 01:44:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 440 transitions. [2020-10-20 01:44:31,593 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 440 transitions. Word has length 54 [2020-10-20 01:44:31,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,594 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 440 transitions. [2020-10-20 01:44:31,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,594 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 440 transitions. [2020-10-20 01:44:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-20 01:44:31,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,595 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, 1, 1] [2020-10-20 01:44:31,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-20 01:44:31,596 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1597125072, now seen corresponding path program 1 times [2020-10-20 01:44:31,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196572092] [2020-10-20 01:44:31,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:31,683 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 01:44:31,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196572092] [2020-10-20 01:44:31,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:31,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:31,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412892751] [2020-10-20 01:44:31,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:31,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:31,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:31,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:31,694 INFO L87 Difference]: Start difference. First operand 322 states and 440 transitions. Second operand 5 states. [2020-10-20 01:44:31,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:31,925 INFO L93 Difference]: Finished difference Result 859 states and 1177 transitions. [2020-10-20 01:44:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:31,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-20 01:44:31,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:31,932 INFO L225 Difference]: With dead ends: 859 [2020-10-20 01:44:31,932 INFO L226 Difference]: Without dead ends: 857 [2020-10-20 01:44:31,933 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 01:44:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-20 01:44:31,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 322. [2020-10-20 01:44:31,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-10-20 01:44:31,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 435 transitions. [2020-10-20 01:44:31,973 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 435 transitions. Word has length 54 [2020-10-20 01:44:31,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:31,974 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 435 transitions. [2020-10-20 01:44:31,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:31,975 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 435 transitions. [2020-10-20 01:44:31,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-20 01:44:31,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:31,977 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, 1, 1, 1] [2020-10-20 01:44:31,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 01:44:31,978 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:31,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:31,978 INFO L82 PathProgramCache]: Analyzing trace with hash 632976081, now seen corresponding path program 1 times [2020-10-20 01:44:31,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:31,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220628519] [2020-10-20 01:44:31,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:32,089 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 01:44:32,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220628519] [2020-10-20 01:44:32,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336635406] [2020-10-20 01:44:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:32,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 01:44:32,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:44:32,272 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 01:44:32,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:44:32,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-20 01:44:32,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400758766] [2020-10-20 01:44:32,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:44:32,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:32,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:44:32,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:44:32,275 INFO L87 Difference]: Start difference. First operand 322 states and 435 transitions. Second operand 6 states. [2020-10-20 01:44:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:32,549 INFO L93 Difference]: Finished difference Result 722 states and 975 transitions. [2020-10-20 01:44:32,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 01:44:32,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-20 01:44:32,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:32,553 INFO L225 Difference]: With dead ends: 722 [2020-10-20 01:44:32,554 INFO L226 Difference]: Without dead ends: 448 [2020-10-20 01:44:32,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-20 01:44:32,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-20 01:44:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 284. [2020-10-20 01:44:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-10-20 01:44:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 377 transitions. [2020-10-20 01:44:32,586 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 377 transitions. Word has length 55 [2020-10-20 01:44:32,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:32,586 INFO L481 AbstractCegarLoop]: Abstraction has 284 states and 377 transitions. [2020-10-20 01:44:32,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:44:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 377 transitions. [2020-10-20 01:44:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:32,588 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:32,588 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, 1, 1, 1] [2020-10-20 01:44:32,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:44:32,802 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:32,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1692954639, now seen corresponding path program 2 times [2020-10-20 01:44:32,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:32,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766813253] [2020-10-20 01:44:32,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:32,947 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 01:44:32,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766813253] [2020-10-20 01:44:32,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:32,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:32,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140543757] [2020-10-20 01:44:32,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:32,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:32,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:32,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:32,951 INFO L87 Difference]: Start difference. First operand 284 states and 377 transitions. Second operand 5 states. [2020-10-20 01:44:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:33,310 INFO L93 Difference]: Finished difference Result 833 states and 1123 transitions. [2020-10-20 01:44:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:33,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-20 01:44:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:33,314 INFO L225 Difference]: With dead ends: 833 [2020-10-20 01:44:33,314 INFO L226 Difference]: Without dead ends: 596 [2020-10-20 01:44:33,315 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 01:44:33,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2020-10-20 01:44:33,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 385. [2020-10-20 01:44:33,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-10-20 01:44:33,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 511 transitions. [2020-10-20 01:44:33,359 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 511 transitions. Word has length 76 [2020-10-20 01:44:33,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:33,359 INFO L481 AbstractCegarLoop]: Abstraction has 385 states and 511 transitions. [2020-10-20 01:44:33,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 511 transitions. [2020-10-20 01:44:33,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-20 01:44:33,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:44:33,361 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, 1, 1, 1] [2020-10-20 01:44:33,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-20 01:44:33,362 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:44:33,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:44:33,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1418195025, now seen corresponding path program 1 times [2020-10-20 01:44:33,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:44:33,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297274521] [2020-10-20 01:44:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:44:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:44:33,452 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 01:44:33,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297274521] [2020-10-20 01:44:33,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:44:33,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:44:33,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054554521] [2020-10-20 01:44:33,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:44:33,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:44:33,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:44:33,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:44:33,455 INFO L87 Difference]: Start difference. First operand 385 states and 511 transitions. Second operand 5 states. [2020-10-20 01:44:33,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:44:33,533 INFO L93 Difference]: Finished difference Result 735 states and 976 transitions. [2020-10-20 01:44:33,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 01:44:33,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-20 01:44:33,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:44:33,534 INFO L225 Difference]: With dead ends: 735 [2020-10-20 01:44:33,534 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:44:33,536 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 01:44:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:44:33,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:44:33,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:44:33,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:44:33,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-20 01:44:33,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:44:33,538 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:44:33,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:44:33,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:44:33,538 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:44:33,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-20 01:44:33,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:44:34,030 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 182 [2020-10-20 01:44:34,205 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 109 [2020-10-20 01:44:34,356 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 111 [2020-10-20 01:44:34,791 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 176 [2020-10-20 01:44:35,155 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 177 [2020-10-20 01:44:35,467 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 150 [2020-10-20 01:44:35,798 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 182 [2020-10-20 01:44:36,183 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 176 [2020-10-20 01:44:37,396 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 180 DAG size of output: 31 [2020-10-20 01:44:37,764 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 24 [2020-10-20 01:44:38,311 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 20 [2020-10-20 01:44:39,421 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 25 [2020-10-20 01:44:40,423 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 24 [2020-10-20 01:44:40,645 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 23 [2020-10-20 01:44:41,347 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 28 [2020-10-20 01:44:42,454 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 180 DAG size of output: 31 [2020-10-20 01:44:42,647 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 29 [2020-10-20 01:44:43,587 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 23 [2020-10-20 01:44:43,592 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,592 INFO L274 CegarLoopResult]: For program point L696(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,592 INFO L274 CegarLoopResult]: For program point L663(lines 663 671) no Hoare annotation was computed. [2020-10-20 01:44:43,593 INFO L274 CegarLoopResult]: For program point L696-2(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,593 INFO L274 CegarLoopResult]: For program point L663-1(lines 663 671) no Hoare annotation was computed. [2020-10-20 01:44:43,593 INFO L274 CegarLoopResult]: For program point L663-2(lines 663 671) no Hoare annotation was computed. [2020-10-20 01:44:43,593 INFO L274 CegarLoopResult]: For program point L696-4(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L696-6(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L696-8(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L696-10(lines 696 702) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,594 INFO L274 CegarLoopResult]: For program point L862(lines 862 868) no Hoare annotation was computed. [2020-10-20 01:44:43,595 INFO L270 CegarLoopResult]: At program point L862-1(lines 862 868) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4)) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse5 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse5 .cse4 .cse2 .cse3))) [2020-10-20 01:44:43,595 INFO L270 CegarLoopResult]: At program point L730(lines 725 733) the Hoare annotation is: false [2020-10-20 01:44:43,595 INFO L270 CegarLoopResult]: At program point L730-1(lines 725 733) the Hoare annotation is: false [2020-10-20 01:44:43,595 INFO L270 CegarLoopResult]: At program point L730-2(lines 725 733) the Hoare annotation is: false [2020-10-20 01:44:43,595 INFO L274 CegarLoopResult]: For program point L798(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L798-2(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L798-3(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L633(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L798-5(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L633-1(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,596 INFO L274 CegarLoopResult]: For program point L798-6(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,597 INFO L274 CegarLoopResult]: For program point L633-2(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,597 INFO L274 CegarLoopResult]: For program point L633-3(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,597 INFO L274 CegarLoopResult]: For program point L798-8(lines 798 802) no Hoare annotation was computed. [2020-10-20 01:44:43,597 INFO L274 CegarLoopResult]: For program point L633-4(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,597 INFO L274 CegarLoopResult]: For program point L633-5(lines 633 650) no Hoare annotation was computed. [2020-10-20 01:44:43,598 INFO L274 CegarLoopResult]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-10-20 01:44:43,598 INFO L270 CegarLoopResult]: At program point L601(lines 600 619) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (and .cse0 (not (= 0 ~systemActive~0)) .cse2 (<= 1 ~waterLevel~0) .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-10-20 01:44:43,598 INFO L274 CegarLoopResult]: For program point L601-1(lines 601 607) no Hoare annotation was computed. [2020-10-20 01:44:43,598 INFO L270 CegarLoopResult]: At program point L601-2(lines 600 619) the Hoare annotation is: false [2020-10-20 01:44:43,599 INFO L270 CegarLoopResult]: At program point L601-3(lines 600 619) the Hoare annotation is: false [2020-10-20 01:44:43,599 INFO L270 CegarLoopResult]: At program point L999(lines 994 1002) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:43,599 INFO L270 CegarLoopResult]: At program point L999-1(lines 994 1002) the Hoare annotation is: false [2020-10-20 01:44:43,599 INFO L270 CegarLoopResult]: At program point L999-2(lines 994 1002) the Hoare annotation is: false [2020-10-20 01:44:43,599 INFO L270 CegarLoopResult]: At program point L75(lines 70 78) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:43,600 INFO L274 CegarLoopResult]: For program point L637(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,600 INFO L274 CegarLoopResult]: For program point L637-1(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,600 INFO L274 CegarLoopResult]: For program point L637-2(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,600 INFO L274 CegarLoopResult]: For program point L637-3(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,600 INFO L274 CegarLoopResult]: For program point L637-4(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,601 INFO L274 CegarLoopResult]: For program point L637-5(lines 637 645) no Hoare annotation was computed. [2020-10-20 01:44:43,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,601 INFO L277 CegarLoopResult]: At program point L176(lines 157 179) the Hoare annotation is: true [2020-10-20 01:44:43,601 INFO L270 CegarLoopResult]: At program point L143(lines 139 145) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) [2020-10-20 01:44:43,601 INFO L270 CegarLoopResult]: At program point L804(lines 789 807) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_main_~tmp~0 1) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:43,602 INFO L270 CegarLoopResult]: At program point L804-1(lines 789 807) the Hoare annotation is: false [2020-10-20 01:44:43,602 INFO L270 CegarLoopResult]: At program point L804-2(lines 789 807) the Hoare annotation is: false [2020-10-20 01:44:43,602 INFO L274 CegarLoopResult]: For program point L872(lines 872 887) no Hoare annotation was computed. [2020-10-20 01:44:43,602 INFO L270 CegarLoopResult]: At program point L608(lines 608 614) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse3 .cse4) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-10-20 01:44:43,603 INFO L270 CegarLoopResult]: At program point L608-1(lines 608 614) the Hoare annotation is: false [2020-10-20 01:44:43,603 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 614) the Hoare annotation is: false [2020-10-20 01:44:43,603 INFO L274 CegarLoopResult]: For program point L907(lines 907 911) no Hoare annotation was computed. [2020-10-20 01:44:43,603 INFO L274 CegarLoopResult]: For program point L907-3(lines 907 911) no Hoare annotation was computed. [2020-10-20 01:44:43,603 INFO L274 CegarLoopResult]: For program point L907-6(lines 907 911) no Hoare annotation was computed. [2020-10-20 01:44:43,603 INFO L274 CegarLoopResult]: For program point L843(lines 842 891) no Hoare annotation was computed. [2020-10-20 01:44:43,604 INFO L270 CegarLoopResult]: At program point L976(lines 971 979) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3) (and .cse0 (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2020-10-20 01:44:43,604 INFO L270 CegarLoopResult]: At program point L976-1(lines 971 979) the Hoare annotation is: false [2020-10-20 01:44:43,604 INFO L270 CegarLoopResult]: At program point L976-2(lines 971 979) the Hoare annotation is: false [2020-10-20 01:44:43,604 INFO L274 CegarLoopResult]: For program point L844(lines 844 848) no Hoare annotation was computed. [2020-10-20 01:44:43,604 INFO L274 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-10-20 01:44:43,605 INFO L274 CegarLoopResult]: For program point L580-1(line 580) no Hoare annotation was computed. [2020-10-20 01:44:43,605 INFO L274 CegarLoopResult]: For program point L580-2(line 580) no Hoare annotation was computed. [2020-10-20 01:44:43,605 INFO L270 CegarLoopResult]: At program point L944(lines 939 947) the Hoare annotation is: false [2020-10-20 01:44:43,605 INFO L270 CegarLoopResult]: At program point L944-1(lines 939 947) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:43,605 INFO L270 CegarLoopResult]: At program point L944-2(lines 939 947) the Hoare annotation is: false [2020-10-20 01:44:43,606 INFO L270 CegarLoopResult]: At program point L944-3(lines 939 947) the Hoare annotation is: false [2020-10-20 01:44:43,606 INFO L274 CegarLoopResult]: For program point L812(lines 812 818) no Hoare annotation was computed. [2020-10-20 01:44:43,606 INFO L270 CegarLoopResult]: At program point L944-4(lines 939 947) the Hoare annotation is: false [2020-10-20 01:44:43,606 INFO L270 CegarLoopResult]: At program point L812-1(lines 812 818) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_main_~tmp~0 1) (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-10-20 01:44:43,606 INFO L274 CegarLoopResult]: For program point L779(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,606 INFO L270 CegarLoopResult]: At program point L944-5(lines 939 947) the Hoare annotation is: false [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-2(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-3(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-5(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-6(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-8(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,607 INFO L274 CegarLoopResult]: For program point L779-9(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,608 INFO L274 CegarLoopResult]: For program point L779-11(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,608 INFO L274 CegarLoopResult]: For program point L779-12(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,608 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:44:43,608 INFO L274 CegarLoopResult]: For program point L779-14(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,608 INFO L274 CegarLoopResult]: For program point L779-15(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,609 INFO L274 CegarLoopResult]: For program point L779-17(lines 779 783) no Hoare annotation was computed. [2020-10-20 01:44:43,609 INFO L274 CegarLoopResult]: For program point L880(lines 880 886) no Hoare annotation was computed. [2020-10-20 01:44:43,609 INFO L270 CegarLoopResult]: At program point L880-1(lines 601 607) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse3 .cse4) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-10-20 01:44:43,609 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:44:43,609 INFO L270 CegarLoopResult]: At program point L785(lines 770 788) the Hoare annotation is: false [2020-10-20 01:44:43,610 INFO L270 CegarLoopResult]: At program point L785-1(lines 770 788) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 (= |ULTIMATE.start_valid_product_#res| 1)))) [2020-10-20 01:44:43,610 INFO L270 CegarLoopResult]: At program point L785-2(lines 770 788) the Hoare annotation is: false [2020-10-20 01:44:43,610 INFO L270 CegarLoopResult]: At program point L785-3(lines 770 788) the Hoare annotation is: false [2020-10-20 01:44:43,610 INFO L270 CegarLoopResult]: At program point L785-4(lines 770 788) the Hoare annotation is: false [2020-10-20 01:44:43,610 INFO L270 CegarLoopResult]: At program point L785-5(lines 770 788) the Hoare annotation is: false [2020-10-20 01:44:43,611 INFO L270 CegarLoopResult]: At program point L92-2(lines 92 106) the Hoare annotation is: false [2020-10-20 01:44:43,611 INFO L274 CegarLoopResult]: For program point L984(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,611 INFO L274 CegarLoopResult]: For program point L984-1(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,611 INFO L274 CegarLoopResult]: For program point L984-2(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,611 INFO L274 CegarLoopResult]: For program point L984-3(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,611 INFO L274 CegarLoopResult]: For program point L852(lines 852 858) no Hoare annotation was computed. [2020-10-20 01:44:43,612 INFO L274 CegarLoopResult]: For program point L984-4(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,612 INFO L270 CegarLoopResult]: At program point L852-1(lines 852 858) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse5 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4)) (and .cse0 .cse4 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse5 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse5 .cse4 .cse2 .cse3))) [2020-10-20 01:44:43,612 INFO L274 CegarLoopResult]: For program point L984-5(lines 984 990) no Hoare annotation was computed. [2020-10-20 01:44:43,612 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-20 01:44:43,612 INFO L274 CegarLoopResult]: For program point L919(lines 919 923) no Hoare annotation was computed. [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721(lines 714 724) the Hoare annotation is: false [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721-1(lines 714 724) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~0 1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721-2(lines 714 724) the Hoare annotation is: false [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721-3(lines 714 724) the Hoare annotation is: false [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721-4(lines 714 724) the Hoare annotation is: false [2020-10-20 01:44:43,613 INFO L270 CegarLoopResult]: At program point L721-5(lines 714 724) the Hoare annotation is: false [2020-10-20 01:44:43,614 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:44:43,614 INFO L274 CegarLoopResult]: For program point L558(lines 558 571) no Hoare annotation was computed. [2020-10-20 01:44:43,614 INFO L270 CegarLoopResult]: At program point L558-1(lines 1 1002) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~0 1)) (.cse6 (not (= 0 ~systemActive~0))) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (.cse5 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 .cse4 .cse5) (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse6 .cse1 .cse2 .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and .cse0 .cse6 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 .cse5))) [2020-10-20 01:44:43,614 INFO L274 CegarLoopResult]: For program point L558-2(lines 558 571) no Hoare annotation was computed. [2020-10-20 01:44:43,614 INFO L270 CegarLoopResult]: At program point L558-3(lines 1 1002) the Hoare annotation is: false [2020-10-20 01:44:43,615 INFO L274 CegarLoopResult]: For program point L558-4(lines 558 571) no Hoare annotation was computed. [2020-10-20 01:44:43,615 INFO L270 CegarLoopResult]: At program point L558-5(lines 1 1002) the Hoare annotation is: false [2020-10-20 01:44:43,615 INFO L274 CegarLoopResult]: For program point L96(lines 96 100) no Hoare annotation was computed. [2020-10-20 01:44:43,615 INFO L274 CegarLoopResult]: For program point L96-1(lines 601 607) no Hoare annotation was computed. [2020-10-20 01:44:43,615 INFO L270 CegarLoopResult]: At program point L989(lines 980 993) the Hoare annotation is: false [2020-10-20 01:44:43,616 INFO L270 CegarLoopResult]: At program point L989-1(lines 980 993) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 .cse2 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (= ULTIMATE.start_main_~tmp~0 1) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3))) [2020-10-20 01:44:43,616 INFO L270 CegarLoopResult]: At program point L989-2(lines 980 993) the Hoare annotation is: false [2020-10-20 01:44:43,616 INFO L270 CegarLoopResult]: At program point L989-3(lines 980 993) the Hoare annotation is: false [2020-10-20 01:44:43,616 INFO L270 CegarLoopResult]: At program point L989-4(lines 980 993) the Hoare annotation is: false [2020-10-20 01:44:43,616 INFO L270 CegarLoopResult]: At program point L989-5(lines 980 993) the Hoare annotation is: false [2020-10-20 01:44:43,616 INFO L274 CegarLoopResult]: For program point L659(lines 659 676) no Hoare annotation was computed. [2020-10-20 01:44:43,617 INFO L274 CegarLoopResult]: For program point L659-1(lines 659 676) no Hoare annotation was computed. [2020-10-20 01:44:43,617 INFO L274 CegarLoopResult]: For program point L659-2(lines 659 676) no Hoare annotation was computed. [2020-10-20 01:44:43,617 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:44:43,617 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:44:43,617 INFO L270 CegarLoopResult]: At program point L892(lines 841 893) the Hoare annotation is: false [2020-10-20 01:44:43,618 INFO L274 CegarLoopResult]: For program point L562(lines 562 568) no Hoare annotation was computed. [2020-10-20 01:44:43,618 INFO L274 CegarLoopResult]: For program point L562-2(lines 562 568) no Hoare annotation was computed. [2020-10-20 01:44:43,618 INFO L274 CegarLoopResult]: For program point L562-4(lines 562 568) no Hoare annotation was computed. [2020-10-20 01:44:43,618 INFO L270 CegarLoopResult]: At program point L67(lines 1 1002) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2020-10-20 01:44:43,618 INFO L274 CegarLoopResult]: For program point L167(lines 167 174) no Hoare annotation was computed. [2020-10-20 01:44:43,618 INFO L277 CegarLoopResult]: At program point L167-1(lines 167 174) the Hoare annotation is: true [2020-10-20 01:44:43,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:44:43 BoogieIcfgContainer [2020-10-20 01:44:43,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:44:43,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:44:43,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:44:43,650 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:44:43,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:44:28" (3/4) ... [2020-10-20 01:44:43,654 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:44:43,674 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-20 01:44:43,676 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-20 01:44:43,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 01:44:43,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:44:43,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:44:43,681 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:43,682 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:44:43,714 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 [2020-10-20 01:44:43,715 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == waterLevel [2020-10-20 01:44:43,715 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) && 1 <= tmp) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) [2020-10-20 01:44:43,715 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:44:43,716 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:44:43,717 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-10-20 01:44:43,717 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-10-20 01:44:43,717 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-10-20 01:44:43,718 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) [2020-10-20 01:44:43,719 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) [2020-10-20 01:44:43,720 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && \result == 0) && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:44:43,720 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:44:43,721 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && tmp == 1) && \result == 0) && tmp == 0) && !(0 == systemActive)) && tmp___0 == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-10-20 01:44:43,722 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp___0 == 0 && tmp == 1) && \result == waterLevel) && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-10-20 01:44:43,723 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 [2020-10-20 01:44:43,724 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 [2020-10-20 01:44:43,868 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:44:43,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:44:43,870 INFO L168 Benchmark]: Toolchain (without parser) took 17578.76 ms. Allocated memory was 35.1 MB in the beginning and 151.5 MB in the end (delta: 116.4 MB). Free memory was 11.1 MB in the beginning and 48.0 MB in the end (delta: -36.9 MB). Peak memory consumption was 79.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,871 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 40.4 kB). Peak memory consumption was 40.4 kB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.44 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 10.2 MB in the beginning and 26.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.33 ms. Allocated memory is still 44.6 MB. Free memory was 26.1 MB in the beginning and 21.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,872 INFO L168 Benchmark]: Boogie Preprocessor took 55.76 ms. Allocated memory is still 44.6 MB. Free memory was 21.7 MB in the beginning and 18.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,872 INFO L168 Benchmark]: RCFGBuilder took 1225.02 ms. Allocated memory was 44.6 MB in the beginning and 49.3 MB in the end (delta: 4.7 MB). Free memory was 18.4 MB in the beginning and 17.7 MB in the end (delta: 674.9 kB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,873 INFO L168 Benchmark]: TraceAbstraction took 15330.97 ms. Allocated memory was 49.3 MB in the beginning and 151.5 MB in the end (delta: 102.2 MB). Free memory was 17.4 MB in the beginning and 64.2 MB in the end (delta: -46.8 MB). Peak memory consumption was 110.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,873 INFO L168 Benchmark]: Witness Printer took 219.24 ms. Allocated memory is still 151.5 MB. Free memory was 64.2 MB in the beginning and 48.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:44:43,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.5 MB in the end (delta: 40.4 kB). Peak memory consumption was 40.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 655.44 ms. Allocated memory was 35.1 MB in the beginning and 44.6 MB in the end (delta: 9.4 MB). Free memory was 10.2 MB in the beginning and 26.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 81.33 ms. Allocated memory is still 44.6 MB. Free memory was 26.1 MB in the beginning and 21.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 55.76 ms. Allocated memory is still 44.6 MB. Free memory was 21.7 MB in the beginning and 18.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1225.02 ms. Allocated memory was 44.6 MB in the beginning and 49.3 MB in the end (delta: 4.7 MB). Free memory was 18.4 MB in the beginning and 17.7 MB in the end (delta: 674.9 kB). Peak memory consumption was 11.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 15330.97 ms. Allocated memory was 49.3 MB in the beginning and 151.5 MB in the end (delta: 102.2 MB). Free memory was 17.4 MB in the beginning and 64.2 MB in the end (delta: -46.8 MB). Peak memory consumption was 110.3 MB. Max. memory is 14.3 GB. * Witness Printer took 219.24 ms. Allocated memory is still 151.5 MB. Free memory was 64.2 MB in the beginning and 48.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 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: 789]: Loop Invariant Derived loop invariant: (((((((\result == 1 && tmp == 1) && \result == 0) && tmp == 0) && !(0 == systemActive)) && tmp___0 == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 852]: Loop Invariant Derived loop invariant: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == waterLevel - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: ((((tmp == 1 && \result == 0) && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 994]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: ((((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 980]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && 1 <= \result) && 1 <= tmp) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: ((((((((tmp == 1 && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) && 1 <= \result) && 1 <= tmp) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel)) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: (((((((((tmp___0 == 0 && tmp == 1) && \result == waterLevel) && tmp == 1) && \result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) || (((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: (((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) || ((((tmp == 1 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == waterLevel) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1588 SDtfs, 2564 SDslu, 2670 SDs, 0 SdLazy, 398 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred 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: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 2299 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 200 NumberOfFragments, 708 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1647971 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 56 FomulaSimplificationsInter, 420463 FormulaSimplificationTreeSizeReductionInter, 7.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 662 NumberOfCodeBlocks, 662 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 647 ConstructedInterpolants, 0 QuantifiedInterpolants, 52307 SizeOfPredicates, 4 NumberOfNonLiveVariables, 830 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 201/212 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...