/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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:20,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:20,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:20,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:20,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:20,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:20,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:20,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:20,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:20,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:20,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:20,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:20,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:20,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:20,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:20,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:20,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:20,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:20,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:20,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:20,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:20,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:20,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:20,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:20,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:20,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:20,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:20,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:20,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:20,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:20,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:20,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:20,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:20,985 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:20,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:20,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:20,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:20,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:20,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:20,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:20,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:20,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:20,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:20,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:20,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:20,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:20,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:20,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:20,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:20,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:20,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:20,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:20,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:20,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:20,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:21,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:21,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:21,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:21,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:21,407 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:21,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-12-22 06:55:21,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac98371e/08fc9c28523b4e41bef5138c3c3f0809/FLAGdf7e215b5 [2020-12-22 06:55:22,159 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:22,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-12-22 06:55:22,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac98371e/08fc9c28523b4e41bef5138c3c3f0809/FLAGdf7e215b5 [2020-12-22 06:55:22,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ac98371e/08fc9c28523b4e41bef5138c3c3f0809 [2020-12-22 06:55:22,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:22,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:22,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:22,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:22,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:22,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:22" (1/1) ... [2020-12-22 06:55:22,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de8ac2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:22, skipping insertion in model container [2020-12-22 06:55:22,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:22" (1/1) ... [2020-12-22 06:55:22,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:22,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:22,832 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_product16.cil.c[1281,1294] [2020-12-22 06:55:23,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:23,112 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:23,130 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_product16.cil.c[1281,1294] [2020-12-22 06:55:23,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:23,230 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:23,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23 WrapperNode [2020-12-22 06:55:23,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:23,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:23,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:23,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:23,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:23,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:23,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:23,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:23,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (1/1) ... [2020-12-22 06:55:23,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:23,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:23,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:23,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:23,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (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 06:55:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:24,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:24,390 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2020-12-22 06:55:24,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:24 BoogieIcfgContainer [2020-12-22 06:55:24,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:24,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:24,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:24,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:24,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:22" (1/3) ... [2020-12-22 06:55:24,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3252a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:24, skipping insertion in model container [2020-12-22 06:55:24,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:23" (2/3) ... [2020-12-22 06:55:24,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3252a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:24, skipping insertion in model container [2020-12-22 06:55:24,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:24" (3/3) ... [2020-12-22 06:55:24,401 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-12-22 06:55:24,407 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:24,412 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:24,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:24,458 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:24,458 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:24,458 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:24,459 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:24,459 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:24,459 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:24,459 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:24,459 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-12-22 06:55:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:24,482 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:24,483 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 06:55:24,483 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:24,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:24,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1926736589, now seen corresponding path program 1 times [2020-12-22 06:55:24,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:24,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572186851] [2020-12-22 06:55:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:24,855 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 06:55:24,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572186851] [2020-12-22 06:55:24,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:24,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:24,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479699177] [2020-12-22 06:55:24,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:24,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:24,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:24,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:24,886 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-12-22 06:55:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:24,938 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2020-12-22 06:55:24,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:24,939 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:24,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:24,959 INFO L225 Difference]: With dead ends: 148 [2020-12-22 06:55:24,959 INFO L226 Difference]: Without dead ends: 73 [2020-12-22 06:55:24,966 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 06:55:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-12-22 06:55:25,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-12-22 06:55:25,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-12-22 06:55:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-12-22 06:55:25,033 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-12-22 06:55:25,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:25,033 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-12-22 06:55:25,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-12-22 06:55:25,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:25,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:25,036 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 06:55:25,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:25,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:25,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1015705836, now seen corresponding path program 1 times [2020-12-22 06:55:25,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:25,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977444019] [2020-12-22 06:55:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:25,161 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 06:55:25,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977444019] [2020-12-22 06:55:25,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:25,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:25,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615875513] [2020-12-22 06:55:25,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:25,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:25,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:25,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:25,165 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-12-22 06:55:25,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:25,179 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-12-22 06:55:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:25,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:25,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:25,181 INFO L225 Difference]: With dead ends: 73 [2020-12-22 06:55:25,181 INFO L226 Difference]: Without dead ends: 35 [2020-12-22 06:55:25,183 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 06:55:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-22 06:55:25,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-22 06:55:25,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-22 06:55:25,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-12-22 06:55:25,189 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-12-22 06:55:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:25,190 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-12-22 06:55:25,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-12-22 06:55:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:25,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:25,191 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 06:55:25,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:25,192 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-12-22 06:55:25,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:25,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257967931] [2020-12-22 06:55:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:25,295 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 06:55:25,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257967931] [2020-12-22 06:55:25,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:25,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:25,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973169471] [2020-12-22 06:55:25,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:25,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:25,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:25,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:25,305 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-12-22 06:55:25,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:25,341 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-12-22 06:55:25,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:25,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:25,343 INFO L225 Difference]: With dead ends: 93 [2020-12-22 06:55:25,343 INFO L226 Difference]: Without dead ends: 64 [2020-12-22 06:55:25,344 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 06:55:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-12-22 06:55:25,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2020-12-22 06:55:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:55:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2020-12-22 06:55:25,355 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2020-12-22 06:55:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:25,356 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2020-12-22 06:55:25,356 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2020-12-22 06:55:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:55:25,357 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:25,357 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 06:55:25,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:25,358 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:25,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-12-22 06:55:25,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:25,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102944991] [2020-12-22 06:55:25,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:25,438 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 06:55:25,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102944991] [2020-12-22 06:55:25,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:25,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:25,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034177280] [2020-12-22 06:55:25,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:25,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:25,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:25,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:25,441 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand 5 states. [2020-12-22 06:55:25,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:25,553 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2020-12-22 06:55:25,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:25,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-22 06:55:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:25,560 INFO L225 Difference]: With dead ends: 320 [2020-12-22 06:55:25,560 INFO L226 Difference]: Without dead ends: 266 [2020-12-22 06:55:25,563 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 06:55:25,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-22 06:55:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2020-12-22 06:55:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 06:55:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2020-12-22 06:55:25,585 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 25 [2020-12-22 06:55:25,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:25,586 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2020-12-22 06:55:25,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:25,586 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2020-12-22 06:55:25,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:25,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:25,587 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 06:55:25,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:25,588 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:25,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-12-22 06:55:25,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:25,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866405320] [2020-12-22 06:55:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:25,688 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:25,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:25,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:25,853 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:25,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:25,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:25 BoogieIcfgContainer [2020-12-22 06:55:25,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:25,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:25,984 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:25,985 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:25,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:24" (3/4) ... [2020-12-22 06:55:25,987 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:26,069 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product16.cil.c-witness.graphml [2020-12-22 06:55:26,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:26,072 INFO L168 Benchmark]: Toolchain (without parser) took 3581.15 ms. Allocated memory is still 151.0 MB. Free memory was 124.9 MB in the beginning and 58.2 MB in the end (delta: 66.7 MB). Peak memory consumption was 67.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,072 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 80.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:26,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.37 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.36 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 100.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,074 INFO L168 Benchmark]: Boogie Preprocessor took 80.79 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 98.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,076 INFO L168 Benchmark]: RCFGBuilder took 984.11 ms. Allocated memory is still 151.0 MB. Free memory was 98.4 MB in the beginning and 88.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,077 INFO L168 Benchmark]: TraceAbstraction took 1590.02 ms. Allocated memory is still 151.0 MB. Free memory was 87.5 MB in the beginning and 69.2 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,077 INFO L168 Benchmark]: Witness Printer took 85.60 ms. Allocated memory is still 151.0 MB. Free memory was 69.2 MB in the beginning and 58.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:26,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 80.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 739.37 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 93.36 ms. Allocated memory is still 151.0 MB. Free memory was 103.6 MB in the beginning and 100.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 80.79 ms. Allocated memory is still 151.0 MB. Free memory was 100.7 MB in the beginning and 98.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 984.11 ms. Allocated memory is still 151.0 MB. Free memory was 98.4 MB in the beginning and 88.0 MB in the end (delta: 10.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1590.02 ms. Allocated memory is still 151.0 MB. Free memory was 87.5 MB in the beginning and 69.2 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 8.0 GB. * Witness Printer took 85.60 ms. Allocated memory is still 151.0 MB. Free memory was 69.2 MB in the beginning and 58.2 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: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L767] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L613] COND TRUE \read(systemActive) [L635] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] int tmp ; [L890] int tmp___0 ; [L891] int tmp___1 ; [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] tmp___0 = getWaterLevel() [L903] COND TRUE tmp___0 == 2 [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] tmp___1 = isPumpRunning() [L907] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L46] 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, 77 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 284 SDslu, 232 SDs, 0 SdLazy, 39 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=108occurred 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, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 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...