/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:25,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:25,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:25,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:25,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:25,052 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:25,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:25,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:25,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:25,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:25,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:25,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:25,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:25,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:25,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:25,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:25,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:25,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:25,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:25,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:25,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:25,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:25,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:25,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:25,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:25,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:25,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:25,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:25,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:25,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:25,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:25,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:25,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:25,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:25,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:25,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:25,115 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:25,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:25,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:25,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:25,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:25,167 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:25,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:25,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:25,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:25,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:25,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:25,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:25,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:25,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:25,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:25,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:25,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:25,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:25,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:25,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:25,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:25,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:25,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:25,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:25,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:25,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:25,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:25,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:25,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:25,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:25,648 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:25,649 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:25,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2020-12-22 06:55:25,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a39d530/127f91c9030e4177bb63d4e1932c3283/FLAG62f960772 [2020-12-22 06:55:26,452 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:26,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2020-12-22 06:55:26,467 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a39d530/127f91c9030e4177bb63d4e1932c3283/FLAG62f960772 [2020-12-22 06:55:26,765 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a39d530/127f91c9030e4177bb63d4e1932c3283 [2020-12-22 06:55:26,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:26,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:26,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:26,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:26,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:26,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:26,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72888c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26, skipping insertion in model container [2020-12-22 06:55:26,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:26,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:26,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:27,187 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_product22.cil.c[2660,2673] [2020-12-22 06:55:27,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:27,415 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:27,465 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_product22.cil.c[2660,2673] [2020-12-22 06:55:27,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:27,576 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:27,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27 WrapperNode [2020-12-22 06:55:27,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:27,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:27,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:27,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:27,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:27,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:27,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:27,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:27,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (1/1) ... [2020-12-22 06:55:27,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:27,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:27,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:27,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:27,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (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 06:55:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:29,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:29,010 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2020-12-22 06:55:29,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:29 BoogieIcfgContainer [2020-12-22 06:55:29,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:29,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:29,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:29,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:29,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:26" (1/3) ... [2020-12-22 06:55:29,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ad336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:29, skipping insertion in model container [2020-12-22 06:55:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:27" (2/3) ... [2020-12-22 06:55:29,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ad336e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:29, skipping insertion in model container [2020-12-22 06:55:29,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:29" (3/3) ... [2020-12-22 06:55:29,028 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-12-22 06:55:29,035 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:29,041 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:29,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:29,107 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:29,107 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:29,108 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:29,108 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:29,108 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:29,108 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:29,108 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:29,108 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-12-22 06:55:29,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:29,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,143 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 06:55:29,143 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1953692801, now seen corresponding path program 1 times [2020-12-22 06:55:29,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863545491] [2020-12-22 06:55:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:29,550 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 06:55:29,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863545491] [2020-12-22 06:55:29,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:29,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:29,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408687014] [2020-12-22 06:55:29,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:29,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:29,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:29,586 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2020-12-22 06:55:29,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:29,653 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2020-12-22 06:55:29,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:29,654 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:29,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:29,673 INFO L225 Difference]: With dead ends: 216 [2020-12-22 06:55:29,673 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 06:55:29,678 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 06:55:29,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 06:55:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-12-22 06:55:29,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 06:55:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2020-12-22 06:55:29,744 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2020-12-22 06:55:29,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:29,745 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2020-12-22 06:55:29,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2020-12-22 06:55:29,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:29,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,750 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 06:55:29,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:29,751 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,756 INFO L82 PathProgramCache]: Analyzing trace with hash 573769835, now seen corresponding path program 1 times [2020-12-22 06:55:29,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624109398] [2020-12-22 06:55:29,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:29,923 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 06:55:29,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624109398] [2020-12-22 06:55:29,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:29,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:29,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745562128] [2020-12-22 06:55:29,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:29,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:29,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:29,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:29,929 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 3 states. [2020-12-22 06:55:29,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:29,957 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2020-12-22 06:55:29,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:29,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:29,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:29,961 INFO L225 Difference]: With dead ends: 107 [2020-12-22 06:55:29,961 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:55:29,963 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 06:55:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:55:29,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:55:29,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:55:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-12-22 06:55:29,975 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2020-12-22 06:55:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:29,976 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-12-22 06:55:29,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:29,977 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-12-22 06:55:29,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:29,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,979 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 06:55:29,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:29,980 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,982 INFO L82 PathProgramCache]: Analyzing trace with hash 197323452, now seen corresponding path program 1 times [2020-12-22 06:55:29,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211519607] [2020-12-22 06:55:29,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:30,122 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 06:55:30,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211519607] [2020-12-22 06:55:30,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:30,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:30,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603068751] [2020-12-22 06:55:30,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:30,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:30,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:30,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:30,125 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-12-22 06:55:30,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:30,150 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2020-12-22 06:55:30,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:30,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:30,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:30,151 INFO L225 Difference]: With dead ends: 84 [2020-12-22 06:55:30,152 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:55:30,152 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 06:55:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:55:30,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:55:30,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:55:30,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-12-22 06:55:30,158 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2020-12-22 06:55:30,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:30,159 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-12-22 06:55:30,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-12-22 06:55:30,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:30,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:30,161 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 06:55:30,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:30,161 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:30,162 INFO L82 PathProgramCache]: Analyzing trace with hash -303470070, now seen corresponding path program 1 times [2020-12-22 06:55:30,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:30,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317081863] [2020-12-22 06:55:30,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:30,244 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 06:55:30,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317081863] [2020-12-22 06:55:30,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:30,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:30,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859010339] [2020-12-22 06:55:30,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:30,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:30,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:30,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:30,249 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 5 states. [2020-12-22 06:55:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:30,390 INFO L93 Difference]: Finished difference Result 242 states and 360 transitions. [2020-12-22 06:55:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:30,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-22 06:55:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:30,393 INFO L225 Difference]: With dead ends: 242 [2020-12-22 06:55:30,393 INFO L226 Difference]: Without dead ends: 203 [2020-12-22 06:55:30,395 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 06:55:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-12-22 06:55:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 80. [2020-12-22 06:55:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:55:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2020-12-22 06:55:30,410 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 26 [2020-12-22 06:55:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:30,411 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2020-12-22 06:55:30,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2020-12-22 06:55:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:55:30,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:30,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:30,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:30,413 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:30,414 INFO L82 PathProgramCache]: Analyzing trace with hash -912506616, now seen corresponding path program 1 times [2020-12-22 06:55:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:30,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120029296] [2020-12-22 06:55:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:30,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:30,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:30,683 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:30,684 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:30,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:30,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:30 BoogieIcfgContainer [2020-12-22 06:55:30,813 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:30,814 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:30,814 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:30,814 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:30,815 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:29" (3/4) ... [2020-12-22 06:55:30,817 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:30,938 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product22.cil.c-witness.graphml [2020-12-22 06:55:30,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:30,945 INFO L168 Benchmark]: Toolchain (without parser) took 4168.62 ms. Allocated memory was 173.0 MB in the beginning and 222.3 MB in the end (delta: 49.3 MB). Free memory was 147.2 MB in the beginning and 124.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,945 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 173.0 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:30,946 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.72 ms. Allocated memory is still 173.0 MB. Free memory was 147.0 MB in the beginning and 126.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.95 ms. Allocated memory is still 173.0 MB. Free memory was 126.0 MB in the beginning and 122.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,949 INFO L168 Benchmark]: Boogie Preprocessor took 89.98 ms. Allocated memory is still 173.0 MB. Free memory was 122.4 MB in the beginning and 119.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,949 INFO L168 Benchmark]: RCFGBuilder took 1256.93 ms. Allocated memory is still 173.0 MB. Free memory was 119.7 MB in the beginning and 95.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,950 INFO L168 Benchmark]: TraceAbstraction took 1797.75 ms. Allocated memory was 173.0 MB in the beginning and 222.3 MB in the end (delta: 49.3 MB). Free memory was 95.1 MB in the beginning and 136.4 MB in the end (delta: -41.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,950 INFO L168 Benchmark]: Witness Printer took 123.86 ms. Allocated memory is still 222.3 MB. Free memory was 136.4 MB in the beginning and 124.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 173.0 MB. Free memory is still 145.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 802.72 ms. Allocated memory is still 173.0 MB. Free memory was 147.0 MB in the beginning and 126.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 85.95 ms. Allocated memory is still 173.0 MB. Free memory was 126.0 MB in the beginning and 122.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.98 ms. Allocated memory is still 173.0 MB. Free memory was 122.4 MB in the beginning and 119.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1256.93 ms. Allocated memory is still 173.0 MB. Free memory was 119.7 MB in the beginning and 95.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1797.75 ms. Allocated memory was 173.0 MB in the beginning and 222.3 MB in the end (delta: 49.3 MB). Free memory was 95.1 MB in the beginning and 136.4 MB in the end (delta: -41.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 8.0 GB. * Witness Printer took 123.86 ms. Allocated memory is still 222.3 MB. Free memory was 136.4 MB in the beginning and 124.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 142]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L147] int cleanupTimeShifts = 4; [L288] int pumpRunning = 0; [L289] int systemActive = 1; [L711] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L226] int retValue_acc ; [L227] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L275] int retValue_acc ; [L278] retValue_acc = 1 [L279] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L233] tmp = valid_product() [L235] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L476] int splverifierCounter ; [L477] int tmp ; [L478] int tmp___0 ; [L479] int tmp___1 ; [L480] int tmp___2 ; [L483] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L485] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L487] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] tmp = __VERIFIER_nondet_int() [L495] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] tmp___0 = __VERIFIER_nondet_int() [L505] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L513] tmp___2 = __VERIFIER_nondet_int() [L515] COND TRUE \read(tmp___2) [L470] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L296] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] COND TRUE \read(systemActive) [L351] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L354] COND FALSE !(\read(pumpRunning)) [L325] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L328] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L909] int tmp ; [L910] int tmp___0 ; [L911] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L915] tmp = isMethaneLevelCritical() [L917] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] tmp___0 = getWaterLevel() [L923] COND TRUE tmp___0 == 2 [L403] int retValue_acc ; [L406] retValue_acc = pumpRunning [L407] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L925] tmp___1 = isPumpRunning() [L927] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] 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, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 384 SDtfs, 412 SDslu, 253 SDs, 0 SdLazy, 50 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, 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, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 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...