/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_product59.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:53,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:53,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:53,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:53,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:53,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:53,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:53,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:53,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:53,630 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:53,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:53,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:53,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:53,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:53,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:53,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:53,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:53,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:53,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:53,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:53,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:53,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:53,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:53,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:53,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:53,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:53,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:53,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:53,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:53,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:53,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:53,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:53,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:53,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:53,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:53,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:53,665 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:53,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:53,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:53,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:53,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:53,695 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:53,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:53,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:53,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:53,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:53,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:53,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:53,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:53,696 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:53,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:53,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:53,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:53,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:53,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:53,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:53,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:53,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:53,698 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:53,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:53,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:53,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:53,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:54,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:54,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:54,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:54,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:54,161 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:54,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2020-12-22 06:55:54,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f677e64e/38b50fb935b5420dae5ecfd4e9803b72/FLAG2b065a394 [2020-12-22 06:55:54,976 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:54,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2020-12-22 06:55:54,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f677e64e/38b50fb935b5420dae5ecfd4e9803b72/FLAG2b065a394 [2020-12-22 06:55:55,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f677e64e/38b50fb935b5420dae5ecfd4e9803b72 [2020-12-22 06:55:55,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:55,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:55,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:55,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:55,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:55,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:55,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b397d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55, skipping insertion in model container [2020-12-22 06:55:55,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:55,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:55,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:55,783 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_product59.cil.c[14819,14832] [2020-12-22 06:55:55,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:55,839 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:55,899 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_product59.cil.c[14819,14832] [2020-12-22 06:55:55,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:55,951 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:55,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55 WrapperNode [2020-12-22 06:55:55,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:55,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:55,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:55,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:55,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:55,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:56,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:56,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:56,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:56,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (1/1) ... [2020-12-22 06:55:56,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:56,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:56,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:56,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:56,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (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 06:55:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:56,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:56,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:57,444 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:57,445 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2020-12-22 06:55:57,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:57 BoogieIcfgContainer [2020-12-22 06:55:57,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:57,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:57,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:57,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:57,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:55" (1/3) ... [2020-12-22 06:55:57,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bed24c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:57, skipping insertion in model container [2020-12-22 06:55:57,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:55" (2/3) ... [2020-12-22 06:55:57,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bed24c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:57, skipping insertion in model container [2020-12-22 06:55:57,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:57" (3/3) ... [2020-12-22 06:55:57,457 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-12-22 06:55:57,463 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:57,469 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:57,487 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:57,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:57,516 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:57,516 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:57,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:57,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:57,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:57,516 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:57,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:57,536 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2020-12-22 06:55:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:57,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:57,544 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 06:55:57,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2020-12-22 06:55:57,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:57,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816339877] [2020-12-22 06:55:57,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:57,898 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 06:55:57,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816339877] [2020-12-22 06:55:57,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:57,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:57,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053791062] [2020-12-22 06:55:57,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:57,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:57,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:57,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:57,921 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2020-12-22 06:55:57,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:57,960 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2020-12-22 06:55:57,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:57,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:57,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:57,974 INFO L225 Difference]: With dead ends: 280 [2020-12-22 06:55:57,975 INFO L226 Difference]: Without dead ends: 139 [2020-12-22 06:55:57,979 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 06:55:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-22 06:55:58,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-12-22 06:55:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-12-22 06:55:58,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2020-12-22 06:55:58,030 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2020-12-22 06:55:58,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,031 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2020-12-22 06:55:58,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:58,031 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2020-12-22 06:55:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:58,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,033 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 06:55:58,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:58,034 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2020-12-22 06:55:58,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217545050] [2020-12-22 06:55:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,172 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 06:55:58,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217545050] [2020-12-22 06:55:58,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:58,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167986919] [2020-12-22 06:55:58,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:58,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:58,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,181 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2020-12-22 06:55:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,198 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2020-12-22 06:55:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:58,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,200 INFO L225 Difference]: With dead ends: 139 [2020-12-22 06:55:58,200 INFO L226 Difference]: Without dead ends: 57 [2020-12-22 06:55:58,201 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 06:55:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-12-22 06:55:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-12-22 06:55:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 06:55:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2020-12-22 06:55:58,217 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2020-12-22 06:55:58,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,217 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-12-22 06:55:58,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:58,218 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2020-12-22 06:55:58,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:58,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,219 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 06:55:58,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:58,219 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,220 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2020-12-22 06:55:58,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296871081] [2020-12-22 06:55:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,297 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 06:55:58,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296871081] [2020-12-22 06:55:58,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:58,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831370024] [2020-12-22 06:55:58,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:58,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:58,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,300 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 3 states. [2020-12-22 06:55:58,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,326 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2020-12-22 06:55:58,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:58,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:58,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,329 INFO L225 Difference]: With dead ends: 159 [2020-12-22 06:55:58,329 INFO L226 Difference]: Without dead ends: 108 [2020-12-22 06:55:58,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-22 06:55:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2020-12-22 06:55:58,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-22 06:55:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2020-12-22 06:55:58,347 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 24 [2020-12-22 06:55:58,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,348 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2020-12-22 06:55:58,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:58,348 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2020-12-22 06:55:58,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:58,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,350 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 06:55:58,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:58,350 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2020-12-22 06:55:58,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240659000] [2020-12-22 06:55:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,449 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 06:55:58,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240659000] [2020-12-22 06:55:58,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:58,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315967901] [2020-12-22 06:55:58,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:58,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:58,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,456 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand 3 states. [2020-12-22 06:55:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,548 INFO L93 Difference]: Finished difference Result 247 states and 368 transitions. [2020-12-22 06:55:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:58,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 06:55:58,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,550 INFO L225 Difference]: With dead ends: 247 [2020-12-22 06:55:58,551 INFO L226 Difference]: Without dead ends: 149 [2020-12-22 06:55:58,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:58,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-22 06:55:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2020-12-22 06:55:58,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-12-22 06:55:58,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 213 transitions. [2020-12-22 06:55:58,570 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 213 transitions. Word has length 26 [2020-12-22 06:55:58,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,570 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 213 transitions. [2020-12-22 06:55:58,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:58,571 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 213 transitions. [2020-12-22 06:55:58,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:55:58,572 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,572 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 06:55:58,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:58,573 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2020-12-22 06:55:58,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515272263] [2020-12-22 06:55:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:58,656 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 06:55:58,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515272263] [2020-12-22 06:55:58,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:58,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:58,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760118659] [2020-12-22 06:55:58,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:58,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:58,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:58,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:58,660 INFO L87 Difference]: Start difference. First operand 147 states and 213 transitions. Second operand 5 states. [2020-12-22 06:55:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:58,866 INFO L93 Difference]: Finished difference Result 773 states and 1137 transitions. [2020-12-22 06:55:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:58,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 06:55:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:58,871 INFO L225 Difference]: With dead ends: 773 [2020-12-22 06:55:58,871 INFO L226 Difference]: Without dead ends: 632 [2020-12-22 06:55:58,873 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 06:55:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-12-22 06:55:58,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 244. [2020-12-22 06:55:58,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-22 06:55:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 344 transitions. [2020-12-22 06:55:58,934 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 344 transitions. Word has length 27 [2020-12-22 06:55:58,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:58,935 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 344 transitions. [2020-12-22 06:55:58,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 344 transitions. [2020-12-22 06:55:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 06:55:58,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:58,937 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, 1] [2020-12-22 06:55:58,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:58,938 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:58,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:58,939 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2020-12-22 06:55:58,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:58,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987667774] [2020-12-22 06:55:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:59,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:59,016 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:59,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:59,133 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:59,133 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:59,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:55:59,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:59 BoogieIcfgContainer [2020-12-22 06:55:59,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:59,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:59,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:59,265 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:59,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:57" (3/4) ... [2020-12-22 06:55:59,268 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:59,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product59.cil.c-witness.graphml [2020-12-22 06:55:59,408 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:59,412 INFO L168 Benchmark]: Toolchain (without parser) took 4200.23 ms. Allocated memory was 154.1 MB in the beginning and 198.2 MB in the end (delta: 44.0 MB). Free memory was 128.8 MB in the beginning and 132.7 MB in the end (delta: -3.9 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,413 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:59,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.76 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 106.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.30 ms. Allocated memory is still 154.1 MB. Free memory was 106.8 MB in the beginning and 102.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,414 INFO L168 Benchmark]: Boogie Preprocessor took 85.67 ms. Allocated memory is still 154.1 MB. Free memory was 102.7 MB in the beginning and 99.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,415 INFO L168 Benchmark]: RCFGBuilder took 1325.63 ms. Allocated memory is still 154.1 MB. Free memory was 99.6 MB in the beginning and 66.4 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,415 INFO L168 Benchmark]: TraceAbstraction took 1815.18 ms. Allocated memory was 154.1 MB in the beginning and 198.2 MB in the end (delta: 44.0 MB). Free memory was 65.9 MB in the beginning and 144.1 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:59,416 INFO L168 Benchmark]: Witness Printer took 142.79 ms. Allocated memory is still 198.2 MB. Free memory was 144.1 MB in the beginning and 132.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:59,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 740.76 ms. Allocated memory is still 154.1 MB. Free memory was 128.6 MB in the beginning and 106.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 78.30 ms. Allocated memory is still 154.1 MB. Free memory was 106.8 MB in the beginning and 102.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.67 ms. Allocated memory is still 154.1 MB. Free memory was 102.7 MB in the beginning and 99.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1325.63 ms. Allocated memory is still 154.1 MB. Free memory was 99.6 MB in the beginning and 66.4 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1815.18 ms. Allocated memory was 154.1 MB in the beginning and 198.2 MB in the end (delta: 44.0 MB). Free memory was 65.9 MB in the beginning and 144.1 MB in the end (delta: -78.2 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 142.79 ms. Allocated memory is still 198.2 MB. Free memory was 144.1 MB in the beginning and 132.7 MB in the end (delta: 11.4 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: 696]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L714] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] tmp = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] COND TRUE waterLevel < 2 [L435] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L989] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L996] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L778] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L785] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] tmp___1 = isPumpRunning() [L677] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L696] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 583 SDtfs, 512 SDslu, 450 SDs, 0 SdLazy, 65 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 394 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...