/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_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:28,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:28,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:28,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-22 06:55:28,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:28,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:28,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:28,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:28,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:28,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:28,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:28,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:28,255 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:28,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:28,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:28,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:28,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:28,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:28,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:28,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:28,258 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:28,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:28,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:28,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:28,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:28,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:28,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:28,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:28,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:28,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:28,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:28,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:28,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:28,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:28,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:28,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:28,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:28,828 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:28,829 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:28,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2020-12-22 06:55:28,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176555876/3464e7896ed846669f3608012481f278/FLAG300e408ea [2020-12-22 06:55:29,586 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:29,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2020-12-22 06:55:29,621 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176555876/3464e7896ed846669f3608012481f278/FLAG300e408ea [2020-12-22 06:55:29,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176555876/3464e7896ed846669f3608012481f278 [2020-12-22 06:55:29,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:29,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:29,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:29,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:29,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:29,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:29" (1/1) ... [2020-12-22 06:55:29,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c1ae1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:29, skipping insertion in model container [2020-12-22 06:55:29,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:29" (1/1) ... [2020-12-22 06:55:29,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:29,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:30,190 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_spec3_product27.cil.c[5284,5297] [2020-12-22 06:55:30,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:30,334 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:30,365 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_spec3_product27.cil.c[5284,5297] [2020-12-22 06:55:30,412 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:30,448 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:30,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30 WrapperNode [2020-12-22 06:55:30,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:30,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:30,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:30,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:30,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:30,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:30,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:30,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:30,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (1/1) ... [2020-12-22 06:55:30,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:30,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:30,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:30,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:30,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (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 06:55:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:31,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:31,671 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2020-12-22 06:55:31,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:31 BoogieIcfgContainer [2020-12-22 06:55:31,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:31,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:31,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:31,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:31,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:29" (1/3) ... [2020-12-22 06:55:31,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038ab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:31, skipping insertion in model container [2020-12-22 06:55:31,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:30" (2/3) ... [2020-12-22 06:55:31,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3038ab45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:31, skipping insertion in model container [2020-12-22 06:55:31,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:31" (3/3) ... [2020-12-22 06:55:31,691 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2020-12-22 06:55:31,698 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:31,705 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:31,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:31,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:31,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:31,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:31,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:31,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:31,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:31,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:31,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2020-12-22 06:55:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:31,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:31,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:31,804 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:31,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:31,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2020-12-22 06:55:31,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:31,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812521782] [2020-12-22 06:55:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:32,098 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 06:55:32,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812521782] [2020-12-22 06:55:32,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:32,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:32,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846624047] [2020-12-22 06:55:32,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:32,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:32,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:32,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:32,129 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2020-12-22 06:55:32,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:32,170 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2020-12-22 06:55:32,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:32,172 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:32,184 INFO L225 Difference]: With dead ends: 160 [2020-12-22 06:55:32,184 INFO L226 Difference]: Without dead ends: 79 [2020-12-22 06:55:32,188 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 06:55:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-22 06:55:32,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-12-22 06:55:32,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-22 06:55:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2020-12-22 06:55:32,236 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2020-12-22 06:55:32,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:32,236 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2020-12-22 06:55:32,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2020-12-22 06:55:32,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:32,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:32,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:32,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:32,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:32,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:32,240 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2020-12-22 06:55:32,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:32,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795168309] [2020-12-22 06:55:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:32,426 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 06:55:32,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795168309] [2020-12-22 06:55:32,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:32,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:32,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830428725] [2020-12-22 06:55:32,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:32,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:32,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:32,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:32,434 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2020-12-22 06:55:32,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:32,451 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2020-12-22 06:55:32,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:32,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:32,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:32,453 INFO L225 Difference]: With dead ends: 79 [2020-12-22 06:55:32,453 INFO L226 Difference]: Without dead ends: 37 [2020-12-22 06:55:32,454 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 06:55:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-22 06:55:32,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-22 06:55:32,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-22 06:55:32,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2020-12-22 06:55:32,461 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2020-12-22 06:55:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:32,461 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2020-12-22 06:55:32,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2020-12-22 06:55:32,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:32,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:32,463 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 06:55:32,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:32,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:32,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:32,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2020-12-22 06:55:32,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:32,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476480641] [2020-12-22 06:55:32,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:32,556 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 06:55:32,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476480641] [2020-12-22 06:55:32,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:32,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:32,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750296589] [2020-12-22 06:55:32,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:55:32,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:32,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:55:32,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:55:32,560 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 6 states. [2020-12-22 06:55:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:32,876 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2020-12-22 06:55:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:32,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-12-22 06:55:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:32,878 INFO L225 Difference]: With dead ends: 124 [2020-12-22 06:55:32,878 INFO L226 Difference]: Without dead ends: 93 [2020-12-22 06:55:32,879 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 06:55:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-22 06:55:32,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2020-12-22 06:55:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-12-22 06:55:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2020-12-22 06:55:32,892 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2020-12-22 06:55:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:32,893 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2020-12-22 06:55:32,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:55:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2020-12-22 06:55:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:55:32,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:32,894 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 06:55:32,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:32,895 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:32,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:32,895 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2020-12-22 06:55:32,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:32,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946171967] [2020-12-22 06:55:32,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:32,976 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 06:55:32,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946171967] [2020-12-22 06:55:32,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:32,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:32,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673419175] [2020-12-22 06:55:32,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:32,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:32,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:32,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:32,979 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 5 states. [2020-12-22 06:55:33,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:33,120 INFO L93 Difference]: Finished difference Result 306 states and 467 transitions. [2020-12-22 06:55:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:33,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-22 06:55:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:33,129 INFO L225 Difference]: With dead ends: 306 [2020-12-22 06:55:33,129 INFO L226 Difference]: Without dead ends: 254 [2020-12-22 06:55:33,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-22 06:55:33,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 104. [2020-12-22 06:55:33,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 06:55:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2020-12-22 06:55:33,175 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 25 [2020-12-22 06:55:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:33,175 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2020-12-22 06:55:33,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2020-12-22 06:55:33,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:33,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:33,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:33,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:33,182 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:33,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:33,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2020-12-22 06:55:33,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:33,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855537689] [2020-12-22 06:55:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:33,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:33,388 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:33,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:33,437 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:33,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:33,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:33 BoogieIcfgContainer [2020-12-22 06:55:33,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:33,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:33,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:33,557 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:33,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:31" (3/4) ... [2020-12-22 06:55:33,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:33,644 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product27.cil.c-witness.graphml [2020-12-22 06:55:33,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:33,648 INFO L168 Benchmark]: Toolchain (without parser) took 3752.32 ms. Allocated memory is still 153.1 MB. Free memory was 127.9 MB in the beginning and 88.4 MB in the end (delta: 39.5 MB). Peak memory consumption was 40.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,648 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 104.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:33,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 551.34 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 107.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.95 ms. Allocated memory is still 153.1 MB. Free memory was 106.7 MB in the beginning and 103.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,653 INFO L168 Benchmark]: Boogie Preprocessor took 47.07 ms. Allocated memory is still 153.1 MB. Free memory was 103.8 MB in the beginning and 101.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,654 INFO L168 Benchmark]: RCFGBuilder took 1093.19 ms. Allocated memory is still 153.1 MB. Free memory was 101.5 MB in the beginning and 129.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,654 INFO L168 Benchmark]: TraceAbstraction took 1879.52 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 99.4 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,655 INFO L168 Benchmark]: Witness Printer took 87.58 ms. Allocated memory is still 153.1 MB. Free memory was 99.4 MB in the beginning and 88.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:33,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 153.1 MB. Free memory was 130.3 MB in the beginning and 130.2 MB in the end (delta: 104.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 551.34 ms. Allocated memory is still 153.1 MB. Free memory was 127.7 MB in the beginning and 107.0 MB in the end (delta: 20.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 81.95 ms. Allocated memory is still 153.1 MB. Free memory was 106.7 MB in the beginning and 103.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.07 ms. Allocated memory is still 153.1 MB. Free memory was 103.8 MB in the beginning and 101.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1093.19 ms. Allocated memory is still 153.1 MB. Free memory was 101.5 MB in the beginning and 129.0 MB in the end (delta: -27.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1879.52 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 99.4 MB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 8.0 GB. * Witness Printer took 87.58 ms. Allocated memory is still 153.1 MB. Free memory was 99.4 MB in the beginning and 88.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 348]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int waterLevel = 1; [L758] int methaneLevelCritical = 0; [L846] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L919] int retValue_acc ; [L920] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] int retValue_acc ; [L385] retValue_acc = 1 [L386] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] tmp = valid_product() [L928] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L59] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L775] COND TRUE waterLevel < 2 [L776] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] COND TRUE \read(systemActive) [L159] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L311] int tmp ; [L312] int tmp___0 ; [L313] int tmp___1 ; [L796] int retValue_acc ; [L799] retValue_acc = methaneLevelCritical [L800] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L317] tmp = isMethaneLevelCritical() [L319] COND FALSE !(\read(tmp)) [L828] int retValue_acc ; [L831] retValue_acc = waterLevel [L832] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp___0 = getWaterLevel() [L325] COND TRUE tmp___0 == 2 [L229] int retValue_acc ; [L232] retValue_acc = pumpRunning [L233] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L327] tmp___1 = isPumpRunning() [L329] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L348] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 440 SDslu, 470 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 185 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...