/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:22,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:22,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:22,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:22,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:22,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:22,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:22,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:22,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:22,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:22,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:22,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:22,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:22,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:22,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:22,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:22,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:22,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:22,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:22,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:22,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:22,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:22,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:22,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:22,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:56:22,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:56:22,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:56:22,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:56:22,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:56:22,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:56:22,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:22,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:22,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:22,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:22,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:22,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:22,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:22,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:22,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:22,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:22,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:22,549 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:22,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:22,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:22,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:22,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:22,611 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:22,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:22,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:22,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:22,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:22,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:22,614 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:22,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:22,615 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:22,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:22,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:22,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:22,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:22,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:22,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:22,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:22,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:22,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:22,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:22,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:22,617 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:22,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:23,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:23,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:23,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:23,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:23,056 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:23,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2020-12-22 06:56:23,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39543201e/a28f8ce823d54d8193d51d044a0a27ae/FLAGc9efc0294 [2020-12-22 06:56:23,834 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:23,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2020-12-22 06:56:23,857 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39543201e/a28f8ce823d54d8193d51d044a0a27ae/FLAGc9efc0294 [2020-12-22 06:56:24,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39543201e/a28f8ce823d54d8193d51d044a0a27ae [2020-12-22 06:56:24,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:24,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:24,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:24,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:24,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:24,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2430bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24, skipping insertion in model container [2020-12-22 06:56:24,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:24,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:24,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14510,14523] [2020-12-22 06:56:24,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:24,683 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:24,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14510,14523] [2020-12-22 06:56:24,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:24,822 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:24,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24 WrapperNode [2020-12-22 06:56:24,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:24,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:24,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:24,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:24,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:24,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:24,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:24,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:24,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:24,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... [2020-12-22 06:56:25,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:25,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:25,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:25,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:25,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:25,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:25,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:25,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:26,143 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:26,143 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2020-12-22 06:56:26,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:26 BoogieIcfgContainer [2020-12-22 06:56:26,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:26,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:26,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:26,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:26,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:24" (1/3) ... [2020-12-22 06:56:26,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a14fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:26, skipping insertion in model container [2020-12-22 06:56:26,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:24" (2/3) ... [2020-12-22 06:56:26,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a14fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:26, skipping insertion in model container [2020-12-22 06:56:26,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:26" (3/3) ... [2020-12-22 06:56:26,157 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2020-12-22 06:56:26,165 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:26,171 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:26,196 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:26,229 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:26,229 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:26,230 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:26,230 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:26,230 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:26,230 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:26,230 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:26,231 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:26,250 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-12-22 06:56:26,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:26,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:26,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:26,259 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:26,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1613004623, now seen corresponding path program 1 times [2020-12-22 06:56:26,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:26,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367901585] [2020-12-22 06:56:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:26,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367901585] [2020-12-22 06:56:26,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:26,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:26,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636820541] [2020-12-22 06:56:26,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:26,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:26,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:26,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:26,607 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-12-22 06:56:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:26,640 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2020-12-22 06:56:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:26,642 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:26,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:26,654 INFO L225 Difference]: With dead ends: 148 [2020-12-22 06:56:26,655 INFO L226 Difference]: Without dead ends: 73 [2020-12-22 06:56:26,658 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 [2020-12-22 06:56:26,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-22 06:56:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-22 06:56:26,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-22 06:56:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-12-22 06:56:26,707 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 16 [2020-12-22 06:56:26,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:26,708 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-12-22 06:56:26,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:26,708 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-12-22 06:56:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:26,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:26,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:26,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:26,710 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:26,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1635205776, now seen corresponding path program 1 times [2020-12-22 06:56:26,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:26,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928865083] [2020-12-22 06:56:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:26,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928865083] [2020-12-22 06:56:26,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:26,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:26,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809187106] [2020-12-22 06:56:26,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:26,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:26,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:26,874 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-12-22 06:56:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:26,896 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-12-22 06:56:26,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:26,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:26,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:26,903 INFO L225 Difference]: With dead ends: 73 [2020-12-22 06:56:26,903 INFO L226 Difference]: Without dead ends: 35 [2020-12-22 06:56:26,904 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 [2020-12-22 06:56:26,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-22 06:56:26,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-22 06:56:26,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-22 06:56:26,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-12-22 06:56:26,918 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 17 [2020-12-22 06:56:26,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:26,918 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-12-22 06:56:26,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:26,919 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-12-22 06:56:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:26,920 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:26,920 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] [2020-12-22 06:56:26,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:26,920 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:26,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:26,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1451070739, now seen corresponding path program 1 times [2020-12-22 06:56:26,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:26,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5673836] [2020-12-22 06:56:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:27,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5673836] [2020-12-22 06:56:27,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:27,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:27,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912461971] [2020-12-22 06:56:27,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:27,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:27,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:27,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:27,064 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 6 states. [2020-12-22 06:56:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:27,324 INFO L93 Difference]: Finished difference Result 116 states and 169 transitions. [2020-12-22 06:56:27,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:27,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-22 06:56:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:27,326 INFO L225 Difference]: With dead ends: 116 [2020-12-22 06:56:27,326 INFO L226 Difference]: Without dead ends: 87 [2020-12-22 06:56:27,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-22 06:56:27,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 54. [2020-12-22 06:56:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-12-22 06:56:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 78 transitions. [2020-12-22 06:56:27,338 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 78 transitions. Word has length 22 [2020-12-22 06:56:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:27,338 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 78 transitions. [2020-12-22 06:56:27,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:27,339 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2020-12-22 06:56:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:27,340 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:27,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:27,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:27,340 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:27,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:27,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1281905457, now seen corresponding path program 1 times [2020-12-22 06:56:27,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:27,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271267603] [2020-12-22 06:56:27,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:27,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271267603] [2020-12-22 06:56:27,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:27,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:27,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047878690] [2020-12-22 06:56:27,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:27,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:27,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:27,470 INFO L87 Difference]: Start difference. First operand 54 states and 78 transitions. Second operand 8 states. [2020-12-22 06:56:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:28,016 INFO L93 Difference]: Finished difference Result 335 states and 516 transitions. [2020-12-22 06:56:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:28,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 06:56:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:28,021 INFO L225 Difference]: With dead ends: 335 [2020-12-22 06:56:28,021 INFO L226 Difference]: Without dead ends: 287 [2020-12-22 06:56:28,023 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 [2020-12-22 06:56:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-12-22 06:56:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 136. [2020-12-22 06:56:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-22 06:56:28,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 196 transitions. [2020-12-22 06:56:28,053 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 196 transitions. Word has length 23 [2020-12-22 06:56:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:28,053 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 196 transitions. [2020-12-22 06:56:28,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 196 transitions. [2020-12-22 06:56:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:28,055 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:28,055 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] [2020-12-22 06:56:28,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:28,056 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:28,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1402731609, now seen corresponding path program 1 times [2020-12-22 06:56:28,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:28,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997576411] [2020-12-22 06:56:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:28,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:28,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997576411] [2020-12-22 06:56:28,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:28,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:28,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870219194] [2020-12-22 06:56:28,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:28,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:28,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:28,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:28,151 INFO L87 Difference]: Start difference. First operand 136 states and 196 transitions. Second operand 3 states. [2020-12-22 06:56:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:28,194 INFO L93 Difference]: Finished difference Result 245 states and 355 transitions. [2020-12-22 06:56:28,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:28,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:28,196 INFO L225 Difference]: With dead ends: 245 [2020-12-22 06:56:28,196 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 06:56:28,197 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 [2020-12-22 06:56:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 06:56:28,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 06:56:28,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 06:56:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2020-12-22 06:56:28,226 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 24 [2020-12-22 06:56:28,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:28,228 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2020-12-22 06:56:28,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2020-12-22 06:56:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:56:28,234 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:28,234 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:28,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:28,235 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:28,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:28,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1852777620, now seen corresponding path program 1 times [2020-12-22 06:56:28,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:28,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221620919] [2020-12-22 06:56:28,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:28,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221620919] [2020-12-22 06:56:28,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873669641] [2020-12-22 06:56:28,397 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 [2020-12-22 06:56:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:28,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:28,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:28,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:28,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:28,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635568322] [2020-12-22 06:56:28,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:28,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:28,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:28,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:28,767 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand 4 states. [2020-12-22 06:56:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:28,877 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2020-12-22 06:56:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:28,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-12-22 06:56:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:28,878 INFO L225 Difference]: With dead ends: 150 [2020-12-22 06:56:28,878 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:28,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:28,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:28,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-12-22 06:56:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:28,886 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:28,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:28,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:29,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:29,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:29,332 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2020-12-22 06:56:29,455 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 29 [2020-12-22 06:56:29,881 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,882 INFO L185 CegarLoopUtils]: At program point L746(lines 697 747) the Hoare annotation is: false [2020-12-22 06:56:29,882 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:29,882 INFO L185 CegarLoopUtils]: At program point L499(lines 494 502) the Hoare annotation is: false [2020-12-22 06:56:29,882 INFO L185 CegarLoopUtils]: At program point L499-1(lines 494 502) the Hoare annotation is: false [2020-12-22 06:56:29,882 INFO L189 CegarLoopUtils]: For program point L433(lines 433 437) no Hoare annotation was computed. [2020-12-22 06:56:29,882 INFO L185 CegarLoopUtils]: At program point L499-2(lines 494 502) the Hoare annotation is: false [2020-12-22 06:56:29,883 INFO L185 CegarLoopUtils]: At program point L814(lines 810 816) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L682(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L682-1(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L682-2(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L550(lines 550 567) no Hoare annotation was computed. [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L550-1(lines 550 567) no Hoare annotation was computed. [2020-12-22 06:56:29,883 INFO L189 CegarLoopUtils]: For program point L550-2(lines 550 567) no Hoare annotation was computed. [2020-12-22 06:56:29,884 INFO L189 CegarLoopUtils]: For program point L897(lines 897 910) no Hoare annotation was computed. [2020-12-22 06:56:29,886 INFO L185 CegarLoopUtils]: At program point L897-1(lines 1 913) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse4 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 .cse1 (not (= 0 ~systemActive~0)) .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse5 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and .cse4 (<= 2 ~waterLevel~0) .cse5 .cse2 .cse3))) [2020-12-22 06:56:29,886 INFO L189 CegarLoopUtils]: For program point L897-2(lines 897 910) no Hoare annotation was computed. [2020-12-22 06:56:29,886 INFO L185 CegarLoopUtils]: At program point L897-3(lines 1 913) the Hoare annotation is: false [2020-12-22 06:56:29,887 INFO L189 CegarLoopUtils]: For program point L897-4(lines 897 910) no Hoare annotation was computed. [2020-12-22 06:56:29,887 INFO L185 CegarLoopUtils]: At program point L897-5(lines 1 913) the Hoare annotation is: false [2020-12-22 06:56:29,887 INFO L189 CegarLoopUtils]: For program point L699(lines 698 745) no Hoare annotation was computed. [2020-12-22 06:56:29,887 INFO L189 CegarLoopUtils]: For program point L666(lines 666 672) no Hoare annotation was computed. [2020-12-22 06:56:29,887 INFO L185 CegarLoopUtils]: At program point L666-1(lines 666 672) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:29,887 INFO L185 CegarLoopUtils]: At program point L518(lines 517 536) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:29,887 INFO L189 CegarLoopUtils]: For program point L518-1(lines 518 524) no Hoare annotation was computed. [2020-12-22 06:56:29,888 INFO L185 CegarLoopUtils]: At program point L518-2(lines 517 536) the Hoare annotation is: false [2020-12-22 06:56:29,888 INFO L185 CegarLoopUtils]: At program point L518-3(lines 517 536) the Hoare annotation is: false [2020-12-22 06:56:29,888 INFO L189 CegarLoopUtils]: For program point L700(lines 700 704) no Hoare annotation was computed. [2020-12-22 06:56:29,888 INFO L185 CegarLoopUtils]: At program point L766-2(lines 766 780) the Hoare annotation is: false [2020-12-22 06:56:29,888 INFO L192 CegarLoopUtils]: At program point L849(lines 830 852) the Hoare annotation is: true [2020-12-22 06:56:29,889 INFO L189 CegarLoopUtils]: For program point L767(line 767) no Hoare annotation was computed. [2020-12-22 06:56:29,889 INFO L189 CegarLoopUtils]: For program point L734(lines 734 740) no Hoare annotation was computed. [2020-12-22 06:56:29,889 INFO L185 CegarLoopUtils]: At program point L734-1(lines 518 524) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:29,889 INFO L189 CegarLoopUtils]: For program point L718(lines 718 724) no Hoare annotation was computed. [2020-12-22 06:56:29,891 INFO L185 CegarLoopUtils]: At program point L718-1(lines 718 724) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse3 (not (= 0 ~systemActive~0)) .cse0 .cse1 .cse4) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0)) .cse0 .cse1 .cse4))) [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L652(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L652-2(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L652-3(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L652-5(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L652-6(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,892 INFO L189 CegarLoopUtils]: For program point L421(lines 421 425) no Hoare annotation was computed. [2020-12-22 06:56:29,893 INFO L189 CegarLoopUtils]: For program point L652-8(lines 652 656) no Hoare annotation was computed. [2020-12-22 06:56:29,893 INFO L189 CegarLoopUtils]: For program point L421-3(lines 421 425) no Hoare annotation was computed. [2020-12-22 06:56:29,893 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:29,893 INFO L189 CegarLoopUtils]: For program point L421-6(lines 421 425) no Hoare annotation was computed. [2020-12-22 06:56:29,893 INFO L185 CegarLoopUtils]: At program point L603(lines 598 606) the Hoare annotation is: false [2020-12-22 06:56:29,893 INFO L185 CegarLoopUtils]: At program point L603-1(lines 598 606) the Hoare annotation is: false [2020-12-22 06:56:29,893 INFO L185 CegarLoopUtils]: At program point L603-2(lines 598 606) the Hoare annotation is: false [2020-12-22 06:56:29,894 INFO L185 CegarLoopUtils]: At program point L884(lines 879 887) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L554(lines 554 562) no Hoare annotation was computed. [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L554-1(lines 554 562) no Hoare annotation was computed. [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L554-2(lines 554 562) no Hoare annotation was computed. [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L901(lines 901 907) no Hoare annotation was computed. [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L901-2(lines 901 907) no Hoare annotation was computed. [2020-12-22 06:56:29,894 INFO L189 CegarLoopUtils]: For program point L901-4(lines 901 907) no Hoare annotation was computed. [2020-12-22 06:56:29,895 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,895 INFO L189 CegarLoopUtils]: For program point L770(lines 770 774) no Hoare annotation was computed. [2020-12-22 06:56:29,895 INFO L189 CegarLoopUtils]: For program point L770-1(lines 518 524) no Hoare annotation was computed. [2020-12-22 06:56:29,895 INFO L185 CegarLoopUtils]: At program point L490(lines 485 493) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:29,895 INFO L185 CegarLoopUtils]: At program point L490-1(lines 485 493) the Hoare annotation is: false [2020-12-22 06:56:29,896 INFO L185 CegarLoopUtils]: At program point L490-2(lines 485 493) the Hoare annotation is: false [2020-12-22 06:56:29,896 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:29,896 INFO L185 CegarLoopUtils]: At program point L525(lines 525 531) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:29,896 INFO L185 CegarLoopUtils]: At program point L525-1(lines 525 531) the Hoare annotation is: false [2020-12-22 06:56:29,896 INFO L185 CegarLoopUtils]: At program point L525-2(lines 525 531) the Hoare annotation is: false [2020-12-22 06:56:29,896 INFO L185 CegarLoopUtils]: At program point L658(lines 643 661) the Hoare annotation is: false [2020-12-22 06:56:29,897 INFO L185 CegarLoopUtils]: At program point L658-1(lines 643 661) the Hoare annotation is: false [2020-12-22 06:56:29,897 INFO L185 CegarLoopUtils]: At program point L658-2(lines 643 661) the Hoare annotation is: false [2020-12-22 06:56:29,897 INFO L189 CegarLoopUtils]: For program point L840(lines 840 847) no Hoare annotation was computed. [2020-12-22 06:56:29,899 INFO L192 CegarLoopUtils]: At program point L840-1(lines 840 847) the Hoare annotation is: true [2020-12-22 06:56:29,899 INFO L189 CegarLoopUtils]: For program point L708(lines 708 714) no Hoare annotation was computed. [2020-12-22 06:56:29,900 INFO L185 CegarLoopUtils]: At program point L708-1(lines 708 714) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse3 (not (= 0 ~systemActive~0)) .cse0 .cse1 .cse4) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0)) .cse0 .cse1 .cse4))) [2020-12-22 06:56:29,900 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:29,900 INFO L189 CegarLoopUtils]: For program point L445(lines 445 449) no Hoare annotation was computed. [2020-12-22 06:56:29,900 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 682) no Hoare annotation was computed. [2020-12-22 06:56:29,900 INFO L185 CegarLoopUtils]: At program point L876(lines 1 913) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:29,900 INFO L189 CegarLoopUtils]: For program point L728(lines 728 741) no Hoare annotation was computed. [2020-12-22 06:56:29,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:29 BoogieIcfgContainer [2020-12-22 06:56:29,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:29,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:29,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:29,952 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:29,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:26" (3/4) ... [2020-12-22 06:56:29,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:29,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:29,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:29,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:29,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:29,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:29,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:29,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:30,019 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:30,019 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == waterLevel && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:30,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == 1 && tmp == waterLevel) && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && 2 <= waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:30,020 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,021 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,021 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,022 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,023 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,024 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:30,092 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product19.cil.c-witness.graphml [2020-12-22 06:56:30,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:30,096 INFO L168 Benchmark]: Toolchain (without parser) took 5963.64 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 140.1 MB in the beginning and 137.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 36.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,097 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 165.7 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:30,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.33 ms. Allocated memory is still 165.7 MB. Free memory was 139.9 MB in the beginning and 119.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,098 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.73 ms. Allocated memory is still 165.7 MB. Free memory was 119.4 MB in the beginning and 116.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,099 INFO L168 Benchmark]: Boogie Preprocessor took 101.95 ms. Allocated memory is still 165.7 MB. Free memory was 116.5 MB in the beginning and 147.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,099 INFO L168 Benchmark]: RCFGBuilder took 1138.14 ms. Allocated memory is still 165.7 MB. Free memory was 147.0 MB in the beginning and 94.0 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,100 INFO L168 Benchmark]: TraceAbstraction took 3802.63 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 93.5 MB in the beginning and 144.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,100 INFO L168 Benchmark]: Witness Printer took 143.51 ms. Allocated memory is still 199.2 MB. Free memory was 144.4 MB in the beginning and 137.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:30,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 165.7 MB. Free memory is still 137.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 686.33 ms. Allocated memory is still 165.7 MB. Free memory was 139.9 MB in the beginning and 119.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 79.73 ms. Allocated memory is still 165.7 MB. Free memory was 119.4 MB in the beginning and 116.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 101.95 ms. Allocated memory is still 165.7 MB. Free memory was 116.5 MB in the beginning and 147.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1138.14 ms. Allocated memory is still 165.7 MB. Free memory was 147.0 MB in the beginning and 94.0 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3802.63 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 93.5 MB in the beginning and 144.4 MB in the end (delta: -50.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 8.0 GB. * Witness Printer took 143.51 ms. Allocated memory is still 199.2 MB. Free memory was 144.4 MB in the beginning and 137.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 682]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 682]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 682]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((waterLevel == 1 && tmp == waterLevel) && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && 2 <= waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 643]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 643]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 643]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 666]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 810]: Loop Invariant Derived loop invariant: (((tmp == waterLevel && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 708]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 697]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 518]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 830]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 355 SDtfs, 619 SDslu, 667 SDs, 0 SdLazy, 120 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 184 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 64 NumberOfFragments, 376 HoareAnnotationTreeSize, 32 FomulaSimplifications, 1373 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 11358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 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...