/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:32,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:32,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:32,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:32,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:32,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:32,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:32,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:32,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:32,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:32,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:32,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:32,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:32,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:32,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:32,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:32,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:32,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:32,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:32,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:32,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:32,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:32,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:32,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:32,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:32,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:32,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:32,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:32,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:32,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:32,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:32,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:32,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:32,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:32,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:32,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:32,901 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:32,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:32,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:32,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:32,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:32,963 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:32,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:32,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:32,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:32,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:32,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:32,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:32,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:32,965 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:32,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:32,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:32,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:32,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:32,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:32,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:32,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:32,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:32,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:32,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:32,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:32,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:32,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:33,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:33,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:33,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:33,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:33,377 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:33,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2020-12-22 06:56:33,464 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ebeee0a/cdca3e5df92c46838ad170d571014eed/FLAG3bd8234cd [2020-12-22 06:56:34,218 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:34,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product32.cil.c [2020-12-22 06:56:34,239 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ebeee0a/cdca3e5df92c46838ad170d571014eed/FLAG3bd8234cd [2020-12-22 06:56:34,268 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98ebeee0a/cdca3e5df92c46838ad170d571014eed [2020-12-22 06:56:34,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:34,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:34,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:34,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:34,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:34,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:34" (1/1) ... [2020-12-22 06:56:34,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5125542b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:34, skipping insertion in model container [2020-12-22 06:56:34,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:34" (1/1) ... [2020-12-22 06:56:34,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:34,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:34,687 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_product32.cil.c[2243,2256] [2020-12-22 06:56:34,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:34,906 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:34,926 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_product32.cil.c[2243,2256] [2020-12-22 06:56:34,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:35,048 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:35,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35 WrapperNode [2020-12-22 06:56:35,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:35,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:35,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:35,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:35,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:35,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:35,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:35,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:35,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (1/1) ... [2020-12-22 06:56:35,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:35,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:35,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:35,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:35,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (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 06:56:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:36,580 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:36,581 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2020-12-22 06:56:36,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:36 BoogieIcfgContainer [2020-12-22 06:56:36,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:36,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:36,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:36,594 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:36,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:34" (1/3) ... [2020-12-22 06:56:36,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b70a53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:36, skipping insertion in model container [2020-12-22 06:56:36,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:35" (2/3) ... [2020-12-22 06:56:36,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b70a53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:36, skipping insertion in model container [2020-12-22 06:56:36,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:36" (3/3) ... [2020-12-22 06:56:36,603 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product32.cil.c [2020-12-22 06:56:36,610 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:36,628 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:36,655 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:36,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:36,703 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:36,703 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:36,703 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:36,703 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:36,703 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:36,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:36,704 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-12-22 06:56:36,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:36,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:36,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:36,733 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:36,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1528758621, now seen corresponding path program 1 times [2020-12-22 06:56:36,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:36,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406295504] [2020-12-22 06:56:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:37,181 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 06:56:37,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406295504] [2020-12-22 06:56:37,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:37,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:37,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786846083] [2020-12-22 06:56:37,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:37,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:37,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:37,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:37,212 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 2 states. [2020-12-22 06:56:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:37,280 INFO L93 Difference]: Finished difference Result 208 states and 311 transitions. [2020-12-22 06:56:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:37,282 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:37,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:37,297 INFO L225 Difference]: With dead ends: 208 [2020-12-22 06:56:37,297 INFO L226 Difference]: Without dead ends: 103 [2020-12-22 06:56:37,303 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 06:56:37,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-22 06:56:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-12-22 06:56:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 06:56:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 147 transitions. [2020-12-22 06:56:37,373 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 147 transitions. Word has length 16 [2020-12-22 06:56:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:37,374 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 147 transitions. [2020-12-22 06:56:37,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 147 transitions. [2020-12-22 06:56:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:37,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:37,379 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 06:56:37,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:37,381 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:37,385 INFO L82 PathProgramCache]: Analyzing trace with hash 512126731, now seen corresponding path program 1 times [2020-12-22 06:56:37,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:37,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977336818] [2020-12-22 06:56:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:37,571 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 06:56:37,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977336818] [2020-12-22 06:56:37,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:37,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:37,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363241242] [2020-12-22 06:56:37,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:37,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:37,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:37,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:37,578 INFO L87 Difference]: Start difference. First operand 103 states and 147 transitions. Second operand 3 states. [2020-12-22 06:56:37,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:37,605 INFO L93 Difference]: Finished difference Result 103 states and 147 transitions. [2020-12-22 06:56:37,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:37,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:37,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:37,608 INFO L225 Difference]: With dead ends: 103 [2020-12-22 06:56:37,608 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:56:37,610 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 06:56:37,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:56:37,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:56:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:56:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-12-22 06:56:37,626 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 17 [2020-12-22 06:56:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:37,626 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-12-22 06:56:37,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-12-22 06:56:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:37,628 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:37,629 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 06:56:37,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:37,630 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:37,632 INFO L82 PathProgramCache]: Analyzing trace with hash -471925062, now seen corresponding path program 1 times [2020-12-22 06:56:37,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:37,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513611792] [2020-12-22 06:56:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:37,758 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 06:56:37,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513611792] [2020-12-22 06:56:37,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:37,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:37,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015837625] [2020-12-22 06:56:37,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:37,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:37,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:37,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:37,762 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-12-22 06:56:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:37,800 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2020-12-22 06:56:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:37,801 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 06:56:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:37,802 INFO L225 Difference]: With dead ends: 123 [2020-12-22 06:56:37,802 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 06:56:37,803 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 06:56:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 06:56:37,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2020-12-22 06:56:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:56:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2020-12-22 06:56:37,816 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 22 [2020-12-22 06:56:37,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:37,816 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2020-12-22 06:56:37,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2020-12-22 06:56:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:37,818 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:37,818 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 06:56:37,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:37,819 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:37,820 INFO L82 PathProgramCache]: Analyzing trace with hash -644490584, now seen corresponding path program 1 times [2020-12-22 06:56:37,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:37,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998378427] [2020-12-22 06:56:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:37,916 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 06:56:37,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998378427] [2020-12-22 06:56:37,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:37,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:56:37,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847402386] [2020-12-22 06:56:37,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:56:37,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:37,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:56:37,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:37,920 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand 7 states. [2020-12-22 06:56:38,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:38,241 INFO L93 Difference]: Finished difference Result 571 states and 870 transitions. [2020-12-22 06:56:38,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 06:56:38,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-12-22 06:56:38,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:38,246 INFO L225 Difference]: With dead ends: 571 [2020-12-22 06:56:38,246 INFO L226 Difference]: Without dead ends: 497 [2020-12-22 06:56:38,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-22 06:56:38,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-22 06:56:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 214. [2020-12-22 06:56:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 06:56:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 313 transitions. [2020-12-22 06:56:38,277 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 313 transitions. Word has length 24 [2020-12-22 06:56:38,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:38,278 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 313 transitions. [2020-12-22 06:56:38,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:56:38,278 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 313 transitions. [2020-12-22 06:56:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:56:38,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:38,280 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] [2020-12-22 06:56:38,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:38,281 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:38,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:38,282 INFO L82 PathProgramCache]: Analyzing trace with hash 234154931, now seen corresponding path program 1 times [2020-12-22 06:56:38,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:38,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155657574] [2020-12-22 06:56:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:38,385 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 06:56:38,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155657574] [2020-12-22 06:56:38,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:38,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:38,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065315938] [2020-12-22 06:56:38,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:38,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:38,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:38,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:38,389 INFO L87 Difference]: Start difference. First operand 214 states and 313 transitions. Second operand 3 states. [2020-12-22 06:56:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:38,413 INFO L93 Difference]: Finished difference Result 332 states and 490 transitions. [2020-12-22 06:56:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:38,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:56:38,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:38,415 INFO L225 Difference]: With dead ends: 332 [2020-12-22 06:56:38,415 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 06:56:38,419 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 06:56:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 06:56:38,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-12-22 06:56:38,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-22 06:56:38,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2020-12-22 06:56:38,434 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 25 [2020-12-22 06:56:38,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:38,434 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2020-12-22 06:56:38,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:38,435 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2020-12-22 06:56:38,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 06:56:38,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:38,437 INFO L422 BasicCegarLoop]: trace histogram [2, 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 06:56:38,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:38,437 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:38,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:38,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1927989650, now seen corresponding path program 1 times [2020-12-22 06:56:38,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:38,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831575759] [2020-12-22 06:56:38,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:38,509 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:38,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831575759] [2020-12-22 06:56:38,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196618684] [2020-12-22 06:56:38,511 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 06:56:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:38,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:38,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:38,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:38,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:38,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596993895] [2020-12-22 06:56:38,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:38,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:38,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:38,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:38,815 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand 4 states. [2020-12-22 06:56:38,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:38,917 INFO L93 Difference]: Finished difference Result 162 states and 213 transitions. [2020-12-22 06:56:38,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:38,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-12-22 06:56:38,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:38,918 INFO L225 Difference]: With dead ends: 162 [2020-12-22 06:56:38,918 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:38,920 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 [2020-12-22 06:56:38,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:38,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:38,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:38,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-12-22 06:56:38,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:38,922 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:38,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:38,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:39,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:39,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:39,553 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 20 [2020-12-22 06:56:39,855 INFO L185 CegarLoopUtils]: At program point L960(lines 909 961) the Hoare annotation is: false [2020-12-22 06:56:39,855 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,855 INFO L185 CegarLoopUtils]: At program point L696(lines 696 702) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:39,856 INFO L185 CegarLoopUtils]: At program point L696-1(lines 696 702) the Hoare annotation is: false [2020-12-22 06:56:39,856 INFO L185 CegarLoopUtils]: At program point L696-2(lines 696 702) the Hoare annotation is: false [2020-12-22 06:56:39,856 INFO L185 CegarLoopUtils]: At program point L104(lines 99 107) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:39,856 INFO L189 CegarLoopUtils]: For program point L930(lines 930 936) no Hoare annotation was computed. [2020-12-22 06:56:39,856 INFO L185 CegarLoopUtils]: At program point L930-1(lines 930 936) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))) (and (= 1 ~systemActive~0) .cse0 .cse1 .cse2))) [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-12-22 06:56:39,857 INFO L192 CegarLoopUtils]: At program point L205-1(lines 205 212) the Hoare annotation is: true [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L866(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L866-2(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L866-3(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L866-5(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,857 INFO L189 CegarLoopUtils]: For program point L866-6(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-8(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-9(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-11(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-12(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-14(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-15(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point L866-17(lines 866 870) no Hoare annotation was computed. [2020-12-22 06:56:39,858 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,859 INFO L185 CegarLoopUtils]: At program point L307(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,859 INFO L185 CegarLoopUtils]: At program point L307-1(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,859 INFO L189 CegarLoopUtils]: For program point L241(lines 241 245) no Hoare annotation was computed. [2020-12-22 06:56:39,859 INFO L185 CegarLoopUtils]: At program point L307-2(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,859 INFO L185 CegarLoopUtils]: At program point L307-3(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,859 INFO L185 CegarLoopUtils]: At program point L307-4(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L307-5(lines 302 310) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872-1(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872-2(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872-3(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872-4(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,860 INFO L185 CegarLoopUtils]: At program point L872-5(lines 857 875) the Hoare annotation is: false [2020-12-22 06:56:39,861 INFO L189 CegarLoopUtils]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,861 INFO L189 CegarLoopUtils]: For program point L113-1(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,861 INFO L189 CegarLoopUtils]: For program point L113-2(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,861 INFO L189 CegarLoopUtils]: For program point L940(lines 940 955) no Hoare annotation was computed. [2020-12-22 06:56:39,861 INFO L185 CegarLoopUtils]: At program point L808(lines 801 811) the Hoare annotation is: false [2020-12-22 06:56:39,861 INFO L185 CegarLoopUtils]: At program point L808-1(lines 801 811) the Hoare annotation is: false [2020-12-22 06:56:39,862 INFO L185 CegarLoopUtils]: At program point L808-2(lines 801 811) the Hoare annotation is: false [2020-12-22 06:56:39,862 INFO L192 CegarLoopUtils]: At program point L214(lines 195 217) the Hoare annotation is: true [2020-12-22 06:56:39,862 INFO L185 CegarLoopUtils]: At program point L181(lines 177 183) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:39,862 INFO L189 CegarLoopUtils]: For program point L911(lines 910 959) no Hoare annotation was computed. [2020-12-22 06:56:39,862 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:39,862 INFO L189 CegarLoopUtils]: For program point L53(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:39,863 INFO L185 CegarLoopUtils]: At program point L53-1(lines 1 967) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 (<= 1 ~waterLevel~0) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))))) [2020-12-22 06:56:39,863 INFO L189 CegarLoopUtils]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:39,863 INFO L185 CegarLoopUtils]: At program point L53-3(lines 1 967) the Hoare annotation is: false [2020-12-22 06:56:39,863 INFO L189 CegarLoopUtils]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2020-12-22 06:56:39,863 INFO L189 CegarLoopUtils]: For program point L912(lines 912 916) no Hoare annotation was computed. [2020-12-22 06:56:39,863 INFO L185 CegarLoopUtils]: At program point L53-5(lines 1 967) the Hoare annotation is: false [2020-12-22 06:56:39,863 INFO L189 CegarLoopUtils]: For program point L747(lines 747 764) no Hoare annotation was computed. [2020-12-22 06:56:39,864 INFO L189 CegarLoopUtils]: For program point L747-1(lines 747 764) no Hoare annotation was computed. [2020-12-22 06:56:39,864 INFO L189 CegarLoopUtils]: For program point L747-2(lines 747 764) no Hoare annotation was computed. [2020-12-22 06:56:39,864 INFO L189 CegarLoopUtils]: For program point L880(lines 880 886) no Hoare annotation was computed. [2020-12-22 06:56:39,864 INFO L185 CegarLoopUtils]: At program point L880-1(lines 880 886) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (or (and (= ~waterLevel~0 ~systemActive~0) .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse1 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0)))) .cse0 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:39,864 INFO L189 CegarLoopUtils]: For program point L253(lines 253 257) no Hoare annotation was computed. [2020-12-22 06:56:39,864 INFO L189 CegarLoopUtils]: For program point L948(lines 948 954) no Hoare annotation was computed. [2020-12-22 06:56:39,865 INFO L185 CegarLoopUtils]: At program point L948-1(lines 689 695) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:39,865 INFO L189 CegarLoopUtils]: For program point L57(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:39,865 INFO L189 CegarLoopUtils]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:39,865 INFO L189 CegarLoopUtils]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2020-12-22 06:56:39,865 INFO L185 CegarLoopUtils]: At program point L817(lines 812 820) the Hoare annotation is: false [2020-12-22 06:56:39,865 INFO L185 CegarLoopUtils]: At program point L817-1(lines 812 820) the Hoare annotation is: false [2020-12-22 06:56:39,865 INFO L189 CegarLoopUtils]: For program point L751(lines 751 759) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L185 CegarLoopUtils]: At program point L817-2(lines 812 820) the Hoare annotation is: false [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L751-1(lines 751 759) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L751-2(lines 751 759) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L721(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L721-1(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L721-2(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L721-3(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,866 INFO L189 CegarLoopUtils]: For program point L721-4(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,867 INFO L189 CegarLoopUtils]: For program point L721-5(lines 721 738) no Hoare annotation was computed. [2020-12-22 06:56:39,867 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:39,867 INFO L189 CegarLoopUtils]: For program point L920(lines 920 926) no Hoare annotation was computed. [2020-12-22 06:56:39,867 INFO L185 CegarLoopUtils]: At program point L920-1(lines 920 926) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0 0))) (and (= 1 ~systemActive~0) .cse0 .cse1 .cse2))) [2020-12-22 06:56:39,868 INFO L185 CegarLoopUtils]: At program point L689(lines 688 707) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:39,868 INFO L189 CegarLoopUtils]: For program point L689-1(lines 689 695) no Hoare annotation was computed. [2020-12-22 06:56:39,868 INFO L185 CegarLoopUtils]: At program point L689-2(lines 688 707) the Hoare annotation is: false [2020-12-22 06:56:39,868 INFO L185 CegarLoopUtils]: At program point L689-3(lines 688 707) the Hoare annotation is: false [2020-12-22 06:56:39,868 INFO L185 CegarLoopUtils]: At program point L96(lines 1 967) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:39,868 INFO L189 CegarLoopUtils]: For program point L229(lines 229 233) no Hoare annotation was computed. [2020-12-22 06:56:39,868 INFO L189 CegarLoopUtils]: For program point L229-3(lines 229 233) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L185 CegarLoopUtils]: At program point L130-2(lines 130 144) the Hoare annotation is: false [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L229-6(lines 229 233) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L725(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L725-1(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L725-2(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L725-3(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,869 INFO L189 CegarLoopUtils]: For program point L725-4(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,870 INFO L189 CegarLoopUtils]: For program point L725-5(lines 725 733) no Hoare annotation was computed. [2020-12-22 06:56:39,870 INFO L189 CegarLoopUtils]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-22 06:56:39,870 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:39,870 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 113) no Hoare annotation was computed. [2020-12-22 06:56:39,870 INFO L185 CegarLoopUtils]: At program point L298(lines 293 301) the Hoare annotation is: (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:39,871 INFO L185 CegarLoopUtils]: At program point L298-1(lines 293 301) the Hoare annotation is: false [2020-12-22 06:56:39,871 INFO L185 CegarLoopUtils]: At program point L298-2(lines 293 301) the Hoare annotation is: false [2020-12-22 06:56:39,871 INFO L185 CegarLoopUtils]: At program point L266(lines 261 269) the Hoare annotation is: false [2020-12-22 06:56:39,871 INFO L185 CegarLoopUtils]: At program point L266-1(lines 261 269) the Hoare annotation is: false [2020-12-22 06:56:39,871 INFO L185 CegarLoopUtils]: At program point L266-2(lines 261 269) the Hoare annotation is: false [2020-12-22 06:56:39,871 INFO L189 CegarLoopUtils]: For program point L134(lines 134 138) no Hoare annotation was computed. [2020-12-22 06:56:39,871 INFO L189 CegarLoopUtils]: For program point L134-1(lines 689 695) no Hoare annotation was computed. [2020-12-22 06:56:39,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:39 BoogieIcfgContainer [2020-12-22 06:56:39,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:39,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:39,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:39,907 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:39,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:36" (3/4) ... [2020-12-22 06:56:39,911 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:39,932 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:39,934 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:39,935 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:39,936 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:39,937 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:39,938 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:39,939 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:39,968 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0)) [2020-12-22 06:56:39,969 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:39,969 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:39,971 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == systemActive && splverifierCounter == 0) || ((!(\result == 0) && splverifierCounter == 0) && !(tmp == 0))) && pumpRunning == 0) && 1 <= waterLevel) [2020-12-22 06:56:39,972 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-12-22 06:56:40,048 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product32.cil.c-witness.graphml [2020-12-22 06:56:40,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:40,050 INFO L168 Benchmark]: Toolchain (without parser) took 5770.56 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 124.9 MB in the beginning and 124.5 MB in the end (delta: 411.4 kB). Peak memory consumption was 32.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,050 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:40,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.03 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 102.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.95 ms. Allocated memory is still 151.0 MB. Free memory was 102.6 MB in the beginning and 99.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,051 INFO L168 Benchmark]: Boogie Preprocessor took 102.38 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 96.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,052 INFO L168 Benchmark]: RCFGBuilder took 1274.09 ms. Allocated memory is still 151.0 MB. Free memory was 96.5 MB in the beginning and 98.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,052 INFO L168 Benchmark]: TraceAbstraction took 3317.63 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.0 MB in the beginning and 133.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 74.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,053 INFO L168 Benchmark]: Witness Printer took 142.26 ms. Allocated memory is still 181.4 MB. Free memory was 133.4 MB in the beginning and 124.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:40,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 125.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 767.03 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 102.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 152.95 ms. Allocated memory is still 151.0 MB. Free memory was 102.6 MB in the beginning and 99.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 102.38 ms. Allocated memory is still 151.0 MB. Free memory was 99.1 MB in the beginning and 96.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1274.09 ms. Allocated memory is still 151.0 MB. Free memory was 96.5 MB in the beginning and 98.5 MB in the end (delta: -2.0 MB). Peak memory consumption was 34.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3317.63 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 98.0 MB in the beginning and 133.4 MB in the end (delta: -35.5 MB). Peak memory consumption was 74.1 MB. Max. memory is 8.0 GB. * Witness Printer took 142.26 ms. Allocated memory is still 181.4 MB. Free memory was 133.4 MB in the beginning and 124.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 113]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 113]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 113]: 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: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0)) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 920]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && !(tmp == 0))) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 261]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 293]: Loop Invariant Derived loop invariant: ((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == systemActive && splverifierCounter == 0) || ((!(\result == 0) && splverifierCounter == 0) && !(tmp == 0))) && pumpRunning == 0) && 1 <= waterLevel) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 462 SDtfs, 653 SDslu, 632 SDs, 0 SdLazy, 118 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred 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, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 76 NumberOfFragments, 261 HoareAnnotationTreeSize, 44 FomulaSimplifications, 826 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 161 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 11242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 382 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 27/32 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...