/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_spec2_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:54:49,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:54:49,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:54:49,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:54:49,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:54:49,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:54:49,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:54:49,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:54:49,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:54:49,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:54:49,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:54:49,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:54:49,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:54:49,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:54:49,450 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:54:49,452 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:54:49,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:54:49,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:54:49,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:54:49,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:54:49,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:54:49,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:54:49,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:54:49,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:54:49,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:54:49,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:54:49,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:54:49,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:54:49,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:54:49,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:54:49,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:54:49,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:54:49,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:54:49,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:54:49,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:54:49,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:54:49,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:54:49,587 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:54:49,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:54:49,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:54:49,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:54:49,592 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:54:49,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:54:49,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:54:49,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:54:49,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:54:49,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:54:49,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:54:49,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:54:49,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:54:49,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:54:49,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:54:49,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:54:49,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:54:49,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:54:49,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:54:49,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:54:49,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:54:49,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:54:49,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:54:49,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:54:49,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:54:49,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:54:50,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:54:50,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:54:50,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:54:50,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:54:50,097 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:54:50,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-12-22 06:54:50,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b24ce6/b1fa4c0e61de45878b9f67680842103f/FLAG22b7ed871 [2020-12-22 06:54:50,841 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:54:50,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product52.cil.c [2020-12-22 06:54:50,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b24ce6/b1fa4c0e61de45878b9f67680842103f/FLAG22b7ed871 [2020-12-22 06:54:51,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b24ce6/b1fa4c0e61de45878b9f67680842103f [2020-12-22 06:54:51,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:54:51,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:54:51,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:51,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:54:51,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:54:51,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:51,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524c38ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51, skipping insertion in model container [2020-12-22 06:54:51,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:51,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:54:51,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:54:51,600 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_spec2_product52.cil.c[18853,18866] [2020-12-22 06:54:51,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:51,616 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:54:51,749 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_spec2_product52.cil.c[18853,18866] [2020-12-22 06:54:51,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:51,812 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:54:51,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51 WrapperNode [2020-12-22 06:54:51,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:51,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:51,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:54:51,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:54:51,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:51,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:51,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:51,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:54:51,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:54:51,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:54:51,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:51,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (1/1) ... [2020-12-22 06:54:52,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:54:52,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:54:52,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:54:52,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:54:52,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (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 06:54:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:54:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:54:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:54:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:54:53,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:54:53,261 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2020-12-22 06:54:53,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:53 BoogieIcfgContainer [2020-12-22 06:54:53,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:54:53,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:54:53,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:54:53,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:54:53,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:54:51" (1/3) ... [2020-12-22 06:54:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dd6548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:53, skipping insertion in model container [2020-12-22 06:54:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:51" (2/3) ... [2020-12-22 06:54:53,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dd6548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:53, skipping insertion in model container [2020-12-22 06:54:53,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:53" (3/3) ... [2020-12-22 06:54:53,274 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product52.cil.c [2020-12-22 06:54:53,281 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:54:53,293 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:54:53,313 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:54:53,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:54:53,345 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:54:53,345 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:54:53,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:54:53,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:54:53,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:54:53,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:54:53,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:54:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-12-22 06:54:53,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:54:53,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:53,375 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 06:54:53,375 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:53,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:53,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1471206820, now seen corresponding path program 1 times [2020-12-22 06:54:53,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:53,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753545553] [2020-12-22 06:54:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:53,699 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 06:54:53,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753545553] [2020-12-22 06:54:53,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:53,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:53,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536720176] [2020-12-22 06:54:53,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:54:53,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:53,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:54:53,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:53,751 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 2 states. [2020-12-22 06:54:53,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:53,790 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2020-12-22 06:54:53,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:54:53,791 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:54:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:53,804 INFO L225 Difference]: With dead ends: 239 [2020-12-22 06:54:53,804 INFO L226 Difference]: Without dead ends: 119 [2020-12-22 06:54:53,808 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 06:54:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-22 06:54:53,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-12-22 06:54:53,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-12-22 06:54:53,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2020-12-22 06:54:53,859 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2020-12-22 06:54:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:53,860 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2020-12-22 06:54:53,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:54:53,860 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2020-12-22 06:54:53,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:54:53,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:53,862 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 06:54:53,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:54:53,863 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:53,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:53,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1252370851, now seen corresponding path program 1 times [2020-12-22 06:54:53,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:53,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988546557] [2020-12-22 06:54:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:54,008 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 06:54:54,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988546557] [2020-12-22 06:54:54,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:54,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:54,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158995873] [2020-12-22 06:54:54,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:54,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:54,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:54,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:54,016 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand 3 states. [2020-12-22 06:54:54,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:54,048 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2020-12-22 06:54:54,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:54,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:54:54,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:54,051 INFO L225 Difference]: With dead ends: 119 [2020-12-22 06:54:54,052 INFO L226 Difference]: Without dead ends: 51 [2020-12-22 06:54:54,054 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 06:54:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-22 06:54:54,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-22 06:54:54,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-22 06:54:54,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2020-12-22 06:54:54,071 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2020-12-22 06:54:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:54,072 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2020-12-22 06:54:54,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2020-12-22 06:54:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:54:54,074 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:54,075 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 06:54:54,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:54:54,076 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:54,080 INFO L82 PathProgramCache]: Analyzing trace with hash 70895168, now seen corresponding path program 1 times [2020-12-22 06:54:54,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:54,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869365146] [2020-12-22 06:54:54,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:54,221 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 06:54:54,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869365146] [2020-12-22 06:54:54,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:54,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:54,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687787830] [2020-12-22 06:54:54,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:54,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:54,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:54,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:54,224 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 5 states. [2020-12-22 06:54:54,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:54,291 INFO L93 Difference]: Finished difference Result 119 states and 177 transitions. [2020-12-22 06:54:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:54,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-22 06:54:54,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:54,293 INFO L225 Difference]: With dead ends: 119 [2020-12-22 06:54:54,293 INFO L226 Difference]: Without dead ends: 75 [2020-12-22 06:54:54,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 06:54:54,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-12-22 06:54:54,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2020-12-22 06:54:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 06:54:54,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-12-22 06:54:54,307 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2020-12-22 06:54:54,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:54,307 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-12-22 06:54:54,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:54,308 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-12-22 06:54:54,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:54:54,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:54,309 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 06:54:54,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:54:54,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:54,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:54,310 INFO L82 PathProgramCache]: Analyzing trace with hash 2090863582, now seen corresponding path program 1 times [2020-12-22 06:54:54,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:54,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004125597] [2020-12-22 06:54:54,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:54,443 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 06:54:54,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004125597] [2020-12-22 06:54:54,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:54,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:54,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447736591] [2020-12-22 06:54:54,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:54,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:54,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:54,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:54,450 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-12-22 06:54:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:54,512 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2020-12-22 06:54:54,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:54,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 06:54:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:54,519 INFO L225 Difference]: With dead ends: 157 [2020-12-22 06:54:54,519 INFO L226 Difference]: Without dead ends: 93 [2020-12-22 06:54:54,523 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 06:54:54,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-12-22 06:54:54,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2020-12-22 06:54:54,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-12-22 06:54:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2020-12-22 06:54:54,555 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2020-12-22 06:54:54,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:54,556 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2020-12-22 06:54:54,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2020-12-22 06:54:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:54:54,559 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:54,559 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 06:54:54,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:54:54,561 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:54,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1765382007, now seen corresponding path program 1 times [2020-12-22 06:54:54,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:54,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565707882] [2020-12-22 06:54:54,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:54,712 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 06:54:54,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565707882] [2020-12-22 06:54:54,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:54,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:54,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326504306] [2020-12-22 06:54:54,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:54,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:54,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:54,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:54,716 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand 5 states. [2020-12-22 06:54:54,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:54,827 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2020-12-22 06:54:54,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:54:54,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 06:54:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:54,835 INFO L225 Difference]: With dead ends: 452 [2020-12-22 06:54:54,835 INFO L226 Difference]: Without dead ends: 368 [2020-12-22 06:54:54,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:54,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-12-22 06:54:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2020-12-22 06:54:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-22 06:54:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2020-12-22 06:54:54,920 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2020-12-22 06:54:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:54,920 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2020-12-22 06:54:54,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2020-12-22 06:54:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 06:54:54,923 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:54,923 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 06:54:54,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:54:54,923 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:54,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:54,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1095440129, now seen corresponding path program 1 times [2020-12-22 06:54:54,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:54,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056553954] [2020-12-22 06:54:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:55,043 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 06:54:55,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056553954] [2020-12-22 06:54:55,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:55,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:55,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613788048] [2020-12-22 06:54:55,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:55,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:55,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:55,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:55,047 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand 5 states. [2020-12-22 06:54:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:55,211 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2020-12-22 06:54:55,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:54:55,211 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-12-22 06:54:55,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:55,214 INFO L225 Difference]: With dead ends: 605 [2020-12-22 06:54:55,214 INFO L226 Difference]: Without dead ends: 448 [2020-12-22 06:54:55,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:55,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-12-22 06:54:55,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2020-12-22 06:54:55,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-12-22 06:54:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2020-12-22 06:54:55,237 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2020-12-22 06:54:55,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:55,238 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2020-12-22 06:54:55,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:55,238 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2020-12-22 06:54:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:55,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:55,247 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, 1, 1, 1, 1, 1] [2020-12-22 06:54:55,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:54:55,247 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:55,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:55,249 INFO L82 PathProgramCache]: Analyzing trace with hash 494548661, now seen corresponding path program 1 times [2020-12-22 06:54:55,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:55,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729416328] [2020-12-22 06:54:55,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:55,328 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 06:54:55,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729416328] [2020-12-22 06:54:55,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:55,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:55,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579457062] [2020-12-22 06:54:55,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:55,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:55,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:55,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:55,332 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand 5 states. [2020-12-22 06:54:55,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:55,420 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2020-12-22 06:54:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:55,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-12-22 06:54:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:55,425 INFO L225 Difference]: With dead ends: 479 [2020-12-22 06:54:55,425 INFO L226 Difference]: Without dead ends: 324 [2020-12-22 06:54:55,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:54:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-12-22 06:54:55,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2020-12-22 06:54:55,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-12-22 06:54:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2020-12-22 06:54:55,452 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2020-12-22 06:54:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:55,452 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2020-12-22 06:54:55,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:55,453 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2020-12-22 06:54:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:55,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:55,455 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, 1, 1, 1, 1, 1] [2020-12-22 06:54:55,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:54:55,455 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:55,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:55,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1195613239, now seen corresponding path program 1 times [2020-12-22 06:54:55,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:55,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552838556] [2020-12-22 06:54:55,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:55,543 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 06:54:55,544 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552838556] [2020-12-22 06:54:55,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:55,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:54:55,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883874848] [2020-12-22 06:54:55,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:54:55,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:55,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:54:55,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:54:55,546 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand 6 states. [2020-12-22 06:54:55,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:55,669 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2020-12-22 06:54:55,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:54:55,670 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-12-22 06:54:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:55,675 INFO L225 Difference]: With dead ends: 513 [2020-12-22 06:54:55,675 INFO L226 Difference]: Without dead ends: 346 [2020-12-22 06:54:55,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-12-22 06:54:55,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-12-22 06:54:55,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2020-12-22 06:54:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-12-22 06:54:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2020-12-22 06:54:55,698 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2020-12-22 06:54:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:55,698 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2020-12-22 06:54:55,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:54:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2020-12-22 06:54:55,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:55,699 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:55,699 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, 1, 1, 1, 1, 1] [2020-12-22 06:54:55,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:54:55,699 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:55,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:55,700 INFO L82 PathProgramCache]: Analyzing trace with hash 608807225, now seen corresponding path program 1 times [2020-12-22 06:54:55,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:55,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175093965] [2020-12-22 06:54:55,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:55,757 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 06:54:55,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175093965] [2020-12-22 06:54:55,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:55,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:55,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280336845] [2020-12-22 06:54:55,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:55,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:55,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:55,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:55,767 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand 3 states. [2020-12-22 06:54:55,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:55,814 INFO L93 Difference]: Finished difference Result 445 states and 603 transitions. [2020-12-22 06:54:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:55,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 06:54:55,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:55,817 INFO L225 Difference]: With dead ends: 445 [2020-12-22 06:54:55,817 INFO L226 Difference]: Without dead ends: 270 [2020-12-22 06:54:55,817 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 06:54:55,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-12-22 06:54:55,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-12-22 06:54:55,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-12-22 06:54:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 357 transitions. [2020-12-22 06:54:55,851 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 357 transitions. Word has length 33 [2020-12-22 06:54:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:55,853 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 357 transitions. [2020-12-22 06:54:55,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 357 transitions. [2020-12-22 06:54:55,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:54:55,855 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:55,855 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, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:55,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:54:55,857 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:55,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:55,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1791527943, now seen corresponding path program 1 times [2020-12-22 06:54:55,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:55,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204004928] [2020-12-22 06:54:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:55,940 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 06:54:55,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204004928] [2020-12-22 06:54:55,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:55,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:55,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943129876] [2020-12-22 06:54:55,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:55,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:55,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:55,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:55,949 INFO L87 Difference]: Start difference. First operand 270 states and 357 transitions. Second operand 3 states. [2020-12-22 06:54:56,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:56,015 INFO L93 Difference]: Finished difference Result 389 states and 516 transitions. [2020-12-22 06:54:56,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:56,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-12-22 06:54:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:56,019 INFO L225 Difference]: With dead ends: 389 [2020-12-22 06:54:56,020 INFO L226 Difference]: Without dead ends: 387 [2020-12-22 06:54:56,020 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 06:54:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-12-22 06:54:56,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 316. [2020-12-22 06:54:56,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-12-22 06:54:56,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 425 transitions. [2020-12-22 06:54:56,061 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 425 transitions. Word has length 34 [2020-12-22 06:54:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:56,062 INFO L481 AbstractCegarLoop]: Abstraction has 316 states and 425 transitions. [2020-12-22 06:54:56,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:56,062 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 425 transitions. [2020-12-22 06:54:56,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 06:54:56,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:56,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:56,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:54:56,065 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:56,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:56,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1315379813, now seen corresponding path program 1 times [2020-12-22 06:54:56,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:56,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320190206] [2020-12-22 06:54:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:56,218 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:56,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320190206] [2020-12-22 06:54:56,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:56,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:54:56,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379997374] [2020-12-22 06:54:56,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:54:56,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:56,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:54:56,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:54:56,222 INFO L87 Difference]: Start difference. First operand 316 states and 425 transitions. Second operand 6 states. [2020-12-22 06:54:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:56,650 INFO L93 Difference]: Finished difference Result 1729 states and 2372 transitions. [2020-12-22 06:54:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 06:54:56,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2020-12-22 06:54:56,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:56,660 INFO L225 Difference]: With dead ends: 1729 [2020-12-22 06:54:56,660 INFO L226 Difference]: Without dead ends: 1508 [2020-12-22 06:54:56,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-12-22 06:54:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2020-12-22 06:54:56,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 659. [2020-12-22 06:54:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-12-22 06:54:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 886 transitions. [2020-12-22 06:54:56,754 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 886 transitions. Word has length 58 [2020-12-22 06:54:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:56,754 INFO L481 AbstractCegarLoop]: Abstraction has 659 states and 886 transitions. [2020-12-22 06:54:56,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:54:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 886 transitions. [2020-12-22 06:54:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 06:54:56,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:56,756 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:56,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:54:56,757 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:56,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:56,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1573545251, now seen corresponding path program 1 times [2020-12-22 06:54:56,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:56,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23362999] [2020-12-22 06:54:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:54:56,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23362999] [2020-12-22 06:54:56,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:56,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:54:56,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608173176] [2020-12-22 06:54:56,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:54:56,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:56,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:54:56,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:54:56,901 INFO L87 Difference]: Start difference. First operand 659 states and 886 transitions. Second operand 7 states. [2020-12-22 06:54:57,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:57,064 INFO L93 Difference]: Finished difference Result 1322 states and 1767 transitions. [2020-12-22 06:54:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:54:57,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-12-22 06:54:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:57,069 INFO L225 Difference]: With dead ends: 1322 [2020-12-22 06:54:57,069 INFO L226 Difference]: Without dead ends: 758 [2020-12-22 06:54:57,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:54:57,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2020-12-22 06:54:57,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 366. [2020-12-22 06:54:57,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-22 06:54:57,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 473 transitions. [2020-12-22 06:54:57,122 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 473 transitions. Word has length 58 [2020-12-22 06:54:57,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:57,124 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 473 transitions. [2020-12-22 06:54:57,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:54:57,124 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 473 transitions. [2020-12-22 06:54:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 06:54:57,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:57,126 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:57,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:54:57,126 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:57,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:57,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1084126975, now seen corresponding path program 1 times [2020-12-22 06:54:57,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:57,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729686062] [2020-12-22 06:54:57,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:57,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729686062] [2020-12-22 06:54:57,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:57,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:57,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078713698] [2020-12-22 06:54:57,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:57,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:57,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:57,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:57,206 INFO L87 Difference]: Start difference. First operand 366 states and 473 transitions. Second operand 5 states. [2020-12-22 06:54:57,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:57,375 INFO L93 Difference]: Finished difference Result 634 states and 825 transitions. [2020-12-22 06:54:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:54:57,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-12-22 06:54:57,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:57,379 INFO L225 Difference]: With dead ends: 634 [2020-12-22 06:54:57,379 INFO L226 Difference]: Without dead ends: 363 [2020-12-22 06:54:57,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:54:57,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2020-12-22 06:54:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 359. [2020-12-22 06:54:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-12-22 06:54:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 456 transitions. [2020-12-22 06:54:57,439 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 456 transitions. Word has length 58 [2020-12-22 06:54:57,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:57,439 INFO L481 AbstractCegarLoop]: Abstraction has 359 states and 456 transitions. [2020-12-22 06:54:57,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 456 transitions. [2020-12-22 06:54:57,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 06:54:57,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:57,441 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:57,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:54:57,442 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:57,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:57,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1918630825, now seen corresponding path program 1 times [2020-12-22 06:54:57,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:57,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927037060] [2020-12-22 06:54:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:57,500 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 06:54:57,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927037060] [2020-12-22 06:54:57,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:57,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:57,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861347824] [2020-12-22 06:54:57,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:57,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:57,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:57,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:57,502 INFO L87 Difference]: Start difference. First operand 359 states and 456 transitions. Second operand 3 states. [2020-12-22 06:54:57,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:57,630 INFO L93 Difference]: Finished difference Result 707 states and 897 transitions. [2020-12-22 06:54:57,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:57,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 06:54:57,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:57,631 INFO L225 Difference]: With dead ends: 707 [2020-12-22 06:54:57,631 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:54:57,632 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 06:54:57,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:54:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:54:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:54:57,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:54:57,633 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-12-22 06:54:57,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:57,633 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:54:57,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:57,634 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:54:57,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:54:57,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:54:57,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:54:57,766 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2020-12-22 06:54:58,229 WARN L197 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 167 [2020-12-22 06:54:58,469 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 165 [2020-12-22 06:54:58,772 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 160 [2020-12-22 06:54:58,948 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 113 [2020-12-22 06:54:59,313 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 154 [2020-12-22 06:54:59,644 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 151 [2020-12-22 06:55:00,110 WARN L197 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 170 [2020-12-22 06:55:00,309 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 160 [2020-12-22 06:55:00,500 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 31 [2020-12-22 06:55:01,120 WARN L197 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 32 [2020-12-22 06:55:01,716 WARN L197 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 25 [2020-12-22 06:55:02,150 WARN L197 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 26 [2020-12-22 06:55:02,540 WARN L197 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 29 [2020-12-22 06:55:03,139 WARN L197 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 31 [2020-12-22 06:55:03,671 WARN L197 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 31 [2020-12-22 06:55:03,955 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 27 [2020-12-22 06:55:04,329 WARN L197 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 36 [2020-12-22 06:55:05,031 WARN L197 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 30 [2020-12-22 06:55:05,566 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2020-12-22 06:55:05,571 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300(lines 285 303) the Hoare annotation is: false [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300-1(lines 285 303) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (not (= 0 ~systemActive~0))) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse2 .cse3 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse4 (<= 1 ~waterLevel~0) .cse5))) [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300-2(lines 285 303) the Hoare annotation is: false [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300-3(lines 285 303) the Hoare annotation is: false [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300-4(lines 285 303) the Hoare annotation is: false [2020-12-22 06:55:05,572 INFO L185 CegarLoopUtils]: At program point L300-5(lines 285 303) the Hoare annotation is: false [2020-12-22 06:55:05,573 INFO L189 CegarLoopUtils]: For program point L466(lines 466 483) no Hoare annotation was computed. [2020-12-22 06:55:05,573 INFO L185 CegarLoopUtils]: At program point L466-1(lines 1 1000) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-22 06:55:05,573 INFO L189 CegarLoopUtils]: For program point L466-2(lines 466 483) no Hoare annotation was computed. [2020-12-22 06:55:05,573 INFO L185 CegarLoopUtils]: At program point L466-3(lines 1 1000) the Hoare annotation is: false [2020-12-22 06:55:05,573 INFO L189 CegarLoopUtils]: For program point L466-4(lines 466 483) no Hoare annotation was computed. [2020-12-22 06:55:05,573 INFO L185 CegarLoopUtils]: At program point L466-5(lines 1 1000) the Hoare annotation is: false [2020-12-22 06:55:05,573 INFO L189 CegarLoopUtils]: For program point L434(lines 434 441) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L192 CegarLoopUtils]: At program point L434-1(lines 434 441) the Hoare annotation is: true [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170-1(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170-2(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170-3(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170-4(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L189 CegarLoopUtils]: For program point L170-5(lines 170 178) no Hoare annotation was computed. [2020-12-22 06:55:05,574 INFO L185 CegarLoopUtils]: At program point L567(lines 562 570) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse0 .cse4 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-12-22 06:55:05,575 INFO L185 CegarLoopUtils]: At program point L567-1(lines 562 570) the Hoare annotation is: false [2020-12-22 06:55:05,575 INFO L185 CegarLoopUtils]: At program point L567-2(lines 562 570) the Hoare annotation is: false [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L997(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L997-1(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L997-2(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L470(lines 470 480) no Hoare annotation was computed. [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L470-2(lines 470 480) no Hoare annotation was computed. [2020-12-22 06:55:05,575 INFO L189 CegarLoopUtils]: For program point L470-4(lines 470 480) no Hoare annotation was computed. [2020-12-22 06:55:05,576 INFO L189 CegarLoopUtils]: For program point L471(lines 471 477) no Hoare annotation was computed. [2020-12-22 06:55:05,576 INFO L189 CegarLoopUtils]: For program point L471-2(lines 471 477) no Hoare annotation was computed. [2020-12-22 06:55:05,576 INFO L189 CegarLoopUtils]: For program point L471-4(lines 471 477) no Hoare annotation was computed. [2020-12-22 06:55:05,576 INFO L185 CegarLoopUtils]: At program point L141(lines 141 147) the Hoare annotation is: (let ((.cse3 (not (= 0 ~systemActive~0))) (.cse4 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2) (and (= ~methaneLevelCritical~0 0) .cse3 .cse4 .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2))) [2020-12-22 06:55:05,576 INFO L185 CegarLoopUtils]: At program point L108(lines 57 109) the Hoare annotation is: false [2020-12-22 06:55:05,576 INFO L185 CegarLoopUtils]: At program point L141-1(lines 141 147) the Hoare annotation is: false [2020-12-22 06:55:05,576 INFO L185 CegarLoopUtils]: At program point L141-2(lines 141 147) the Hoare annotation is: false [2020-12-22 06:55:05,577 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,577 INFO L185 CegarLoopUtils]: At program point L406(lines 402 408) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-22 06:55:05,577 INFO L189 CegarLoopUtils]: For program point L78(lines 78 84) no Hoare annotation was computed. [2020-12-22 06:55:05,577 INFO L185 CegarLoopUtils]: At program point L78-1(lines 78 84) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-22 06:55:05,577 INFO L189 CegarLoopUtils]: For program point L607(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,577 INFO L189 CegarLoopUtils]: For program point L607-1(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L189 CegarLoopUtils]: For program point L607-2(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L189 CegarLoopUtils]: For program point L607-3(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L189 CegarLoopUtils]: For program point L607-4(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L189 CegarLoopUtils]: For program point L607-5(lines 607 613) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L189 CegarLoopUtils]: For program point L542(lines 542 546) no Hoare annotation was computed. [2020-12-22 06:55:05,578 INFO L192 CegarLoopUtils]: At program point L443(lines 424 446) the Hoare annotation is: true [2020-12-22 06:55:05,578 INFO L185 CegarLoopUtils]: At program point L245(lines 240 248) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ~methAndRunningLastTime~0 0) .cse3) (and .cse1 (= |ULTIMATE.start_isPumpRunning_#res| 0) .cse0 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2020-12-22 06:55:05,579 INFO L185 CegarLoopUtils]: At program point L245-1(lines 240 248) the Hoare annotation is: false [2020-12-22 06:55:05,579 INFO L185 CegarLoopUtils]: At program point L245-2(lines 240 248) the Hoare annotation is: false [2020-12-22 06:55:05,579 INFO L185 CegarLoopUtils]: At program point L510(lines 1 1000) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-12-22 06:55:05,579 INFO L189 CegarLoopUtils]: For program point L313(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,579 INFO L189 CegarLoopUtils]: For program point L313-2(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,579 INFO L189 CegarLoopUtils]: For program point L313-3(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,579 INFO L189 CegarLoopUtils]: For program point L313-5(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,579 INFO L189 CegarLoopUtils]: For program point L313-6(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,580 INFO L189 CegarLoopUtils]: For program point L313-8(lines 313 317) no Hoare annotation was computed. [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612(lines 603 616) the Hoare annotation is: false [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612-1(lines 603 616) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methAndRunningLastTime~0 0) .cse5) (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5))) [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612-2(lines 603 616) the Hoare annotation is: false [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612-3(lines 603 616) the Hoare annotation is: false [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612-4(lines 603 616) the Hoare annotation is: false [2020-12-22 06:55:05,580 INFO L185 CegarLoopUtils]: At program point L612-5(lines 603 616) the Hoare annotation is: false [2020-12-22 06:55:05,581 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:55:05,581 INFO L185 CegarLoopUtils]: At program point L319(lines 304 322) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 0)) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (not (= ~pumpRunning~0 0)) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-22 06:55:05,581 INFO L185 CegarLoopUtils]: At program point L319-1(lines 304 322) the Hoare annotation is: false [2020-12-22 06:55:05,581 INFO L185 CegarLoopUtils]: At program point L319-2(lines 304 322) the Hoare annotation is: false [2020-12-22 06:55:05,581 INFO L189 CegarLoopUtils]: For program point L88(lines 88 103) no Hoare annotation was computed. [2020-12-22 06:55:05,582 INFO L185 CegarLoopUtils]: At program point L518(lines 513 521) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-22 06:55:05,582 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:55:05,582 INFO L189 CegarLoopUtils]: For program point L554(lines 554 558) no Hoare annotation was computed. [2020-12-22 06:55:05,582 INFO L185 CegarLoopUtils]: At program point L455(lines 450 457) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ~methAndRunningLastTime~0 0)) [2020-12-22 06:55:05,582 INFO L189 CegarLoopUtils]: For program point L59(lines 58 107) no Hoare annotation was computed. [2020-12-22 06:55:05,582 INFO L189 CegarLoopUtils]: For program point L192(lines 192 209) no Hoare annotation was computed. [2020-12-22 06:55:05,582 INFO L189 CegarLoopUtils]: For program point L192-1(lines 192 209) no Hoare annotation was computed. [2020-12-22 06:55:05,583 INFO L189 CegarLoopUtils]: For program point L192-2(lines 192 209) no Hoare annotation was computed. [2020-12-22 06:55:05,583 INFO L189 CegarLoopUtils]: For program point L60(lines 60 64) no Hoare annotation was computed. [2020-12-22 06:55:05,583 INFO L185 CegarLoopUtils]: At program point L622(lines 617 625) the Hoare annotation is: (and (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (not (= ~pumpRunning~0 0)) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (not (= 0 ~systemActive~0)) (= ULTIMATE.start_main_~tmp~5 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-22 06:55:05,583 INFO L185 CegarLoopUtils]: At program point L622-1(lines 617 625) the Hoare annotation is: false [2020-12-22 06:55:05,583 INFO L185 CegarLoopUtils]: At program point L622-2(lines 617 625) the Hoare annotation is: false [2020-12-22 06:55:05,583 INFO L185 CegarLoopUtils]: At program point L358-2(lines 358 372) the Hoare annotation is: false [2020-12-22 06:55:05,583 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L359(line 359) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L327(lines 327 333) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L185 CegarLoopUtils]: At program point L327-1(lines 327 333) the Hoare annotation is: (let ((.cse2 (<= 1 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 (= ~methAndRunningLastTime~0 0) .cse4) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse3 .cse4))) [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L294(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L294-3(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,584 INFO L189 CegarLoopUtils]: For program point L294-5(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,585 INFO L189 CegarLoopUtils]: For program point L96(lines 96 102) no Hoare annotation was computed. [2020-12-22 06:55:05,585 INFO L189 CegarLoopUtils]: For program point L294-6(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,585 INFO L185 CegarLoopUtils]: At program point L96-1(lines 134 140) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse3 (= ULTIMATE.start_main_~tmp~5 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse5 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (not .cse0) (not .cse1) .cse2 .cse3 .cse4 .cse5) (and .cse3 .cse0 .cse4 .cse6 .cse5 (= ~methAndRunningLastTime~0 0)) (and .cse1 .cse2 .cse3 .cse0 .cse4 .cse5) (and (= ~methaneLevelCritical~0 0) .cse1 .cse3 .cse0 .cse6 .cse4 .cse5))) [2020-12-22 06:55:05,585 INFO L189 CegarLoopUtils]: For program point L294-8(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,585 INFO L189 CegarLoopUtils]: For program point L294-9(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,585 INFO L189 CegarLoopUtils]: For program point L294-11(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L294-12(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L294-14(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L294-15(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L294-17(lines 294 298) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L196(lines 196 204) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L196-1(lines 196 204) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L196-2(lines 196 204) no Hoare annotation was computed. [2020-12-22 06:55:05,586 INFO L189 CegarLoopUtils]: For program point L362(lines 362 366) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L362-1(lines 134 140) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L166(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L166-1(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L166-2(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L166-3(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,587 INFO L189 CegarLoopUtils]: For program point L166-4(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L166-5(lines 166 183) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L530(lines 530 534) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L530-3(lines 530 534) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L530-6(lines 530 534) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L185 CegarLoopUtils]: At program point L134(lines 133 152) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse2 .cse4 (= ~methAndRunningLastTime~0 0)) (and .cse5 (<= 2 ~waterLevel~0) .cse0 .cse1 .cse3 .cse4) (and (not .cse1) (not .cse5) .cse0 .cse3 .cse2 .cse4))) [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L134-1(lines 134 140) no Hoare annotation was computed. [2020-12-22 06:55:05,588 INFO L189 CegarLoopUtils]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-22 06:55:05,589 INFO L185 CegarLoopUtils]: At program point L134-2(lines 133 152) the Hoare annotation is: false [2020-12-22 06:55:05,589 INFO L185 CegarLoopUtils]: At program point L68-1(lines 68 74) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_main_~tmp~5 1)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= ~methAndRunningLastTime~0 0) .cse3) (and (not .cse1) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) .cse0 .cse2 .cse3))) [2020-12-22 06:55:05,589 INFO L185 CegarLoopUtils]: At program point L134-3(lines 133 152) the Hoare annotation is: false [2020-12-22 06:55:05,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:05 BoogieIcfgContainer [2020-12-22 06:55:05,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:05,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:05,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:05,624 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:05,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:53" (3/4) ... [2020-12-22 06:55:05,629 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:55:05,653 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:55:05,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:55:05,655 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:55:05,656 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:55:05,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:55:05,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:05,659 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:05,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-22 06:55:05,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-22 06:55:05,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 [2020-12-22 06:55:05,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,689 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,689 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,690 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,690 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-22 06:55:05,691 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-12-22 06:55:05,691 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,692 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) [2020-12-22 06:55:05,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-12-22 06:55:05,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:05,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-22 06:55:05,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 [2020-12-22 06:55:05,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-12-22 06:55:05,761 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec2_product52.cil.c-witness.graphml [2020-12-22 06:55:05,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:05,762 INFO L168 Benchmark]: Toolchain (without parser) took 14608.40 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 124.9 MB in the beginning and 105.8 MB in the end (delta: 19.1 MB). Peak memory consumption was 136.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,763 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:05,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.74 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 102.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 162.68 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 132.4 MB in the end (delta: -29.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,767 INFO L168 Benchmark]: Boogie Preprocessor took 72.63 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 129.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,767 INFO L168 Benchmark]: RCFGBuilder took 1209.08 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 66.3 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,767 INFO L168 Benchmark]: TraceAbstraction took 12358.09 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 65.8 MB in the beginning and 116.3 MB in the end (delta: -50.5 MB). Peak memory consumption was 68.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,768 INFO L168 Benchmark]: Witness Printer took 136.94 ms. Allocated memory is still 268.4 MB. Free memory was 116.3 MB in the beginning and 105.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:05,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 654.74 ms. Allocated memory is still 151.0 MB. Free memory was 124.7 MB in the beginning and 102.9 MB in the end (delta: 21.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 162.68 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 132.4 MB in the end (delta: -29.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 72.63 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 129.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1209.08 ms. Allocated memory is still 151.0 MB. Free memory was 129.3 MB in the beginning and 66.3 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12358.09 ms. Allocated memory was 151.0 MB in the beginning and 268.4 MB in the end (delta: 117.4 MB). Free memory was 65.8 MB in the beginning and 116.3 MB in the end (delta: -50.5 MB). Peak memory consumption was 68.9 MB. Max. memory is 8.0 GB. * Witness Printer took 136.94 ms. Allocated memory is still 268.4 MB. Free memory was 116.3 MB in the beginning and 105.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 358]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((!(\result == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1)) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: ((((((((((\result <= 0 && !(tmp___0 == 0)) && 0 < tmp + 1) && !(\result == 0)) && !(pumpRunning == 0)) && tmp <= 0) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((methaneLevelCritical == 0 && 0 == systemActive) && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1)) || ((((tmp == 1 && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: ((((((\result <= 0 && !(pumpRunning == 0)) && 0 <= \result) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (((((((methaneLevelCritical == 0 && tmp == 1) && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) && \result == 1) || (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && methAndRunningLastTime == 0)) || (((((0 == systemActive && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: (((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && tmp == 1) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: ((((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || (((((tmp == 1 && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) || ((((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1)) || ((((((((tmp___0 == 0 && !(0 == systemActive)) && \result == 0) && tmp == 1) && pumpRunning == 0) && !(tmp == 0)) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && methaneLevelCritical == 0) && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && methAndRunningLastTime == 0 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((methaneLevelCritical == 0 && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || (((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) && \result == 1) - InvariantResult [Line: 424]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && methAndRunningLastTime == 0) && \result == 1) || (((((!(pumpRunning == 0) && !(0 == systemActive)) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1407 SDtfs, 2175 SDslu, 2127 SDs, 0 SdLazy, 268 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 2126 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 188 NumberOfFragments, 829 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1644276 FormulaSimplificationTreeSizeReduction, 2.6s HoareSimplificationTime, 45 FomulaSimplificationsInter, 131331 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 510 NumberOfCodeBlocks, 510 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 496 ConstructedInterpolants, 0 QuantifiedInterpolants, 35144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 82/82 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...