/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:02,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:02,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:02,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:02,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:02,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:02,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:02,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:02,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:02,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:02,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:02,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:02,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:02,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:02,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:02,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:02,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:02,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:02,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:02,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:02,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:02,193 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:02,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:02,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:02,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:02,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:02,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:02,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:02,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:02,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:02,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:02,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:02,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:02,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:02,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:02,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:02,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:02,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:02,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:02,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:02,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:02,277 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:02,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:02,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:02,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:02,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:02,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:02,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:02,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:02,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:02,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:02,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:02,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:02,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:02,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:02,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:02,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:02,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:02,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:02,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:02,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:02,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:02,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:02,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:02,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:02,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:02,711 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:02,712 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:02,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2020-12-22 06:56:02,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82100eb/fbf2b510c9564a1aa5dec94c8765dc49/FLAG0db0bf69b [2020-12-22 06:56:03,442 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:03,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2020-12-22 06:56:03,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82100eb/fbf2b510c9564a1aa5dec94c8765dc49/FLAG0db0bf69b [2020-12-22 06:56:03,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f82100eb/fbf2b510c9564a1aa5dec94c8765dc49 [2020-12-22 06:56:03,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:03,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:03,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:03,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:03,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:03,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:03" (1/1) ... [2020-12-22 06:56:03,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75bc9740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:03, skipping insertion in model container [2020-12-22 06:56:03,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:03" (1/1) ... [2020-12-22 06:56:03,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:03,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:04,168 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2020-12-22 06:56:04,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:04,185 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:04,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c[18698,18711] [2020-12-22 06:56:04,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:04,356 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:04,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04 WrapperNode [2020-12-22 06:56:04,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:04,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:04,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:04,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:04,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:04,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:04,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:04,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:04,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (1/1) ... [2020-12-22 06:56:04,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:04,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:04,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:04,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:04,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (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 06:56:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:04,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:04,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:06,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:06,144 INFO L299 CfgBuilder]: Removed 360 assume(true) statements. [2020-12-22 06:56:06,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:06 BoogieIcfgContainer [2020-12-22 06:56:06,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:06,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:06,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:06,152 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:06,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:03" (1/3) ... [2020-12-22 06:56:06,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@845d4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:06, skipping insertion in model container [2020-12-22 06:56:06,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:04" (2/3) ... [2020-12-22 06:56:06,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@845d4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:06, skipping insertion in model container [2020-12-22 06:56:06,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:06" (3/3) ... [2020-12-22 06:56:06,156 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-12-22 06:56:06,163 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:06,168 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:06,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:06,216 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:06,217 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:06,217 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:06,217 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:06,217 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:06,217 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:06,218 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:06,218 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:06,239 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2020-12-22 06:56:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:56:06,247 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:06,247 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 06:56:06,248 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:06,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:06,255 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2020-12-22 06:56:06,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:06,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730061008] [2020-12-22 06:56:06,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:06,581 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 06:56:06,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730061008] [2020-12-22 06:56:06,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:06,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:06,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041001557] [2020-12-22 06:56:06,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:06,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:06,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:06,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:06,606 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2020-12-22 06:56:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:06,663 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2020-12-22 06:56:06,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:06,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:56:06,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:06,680 INFO L225 Difference]: With dead ends: 460 [2020-12-22 06:56:06,680 INFO L226 Difference]: Without dead ends: 229 [2020-12-22 06:56:06,685 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 06:56:06,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-12-22 06:56:06,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2020-12-22 06:56:06,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-12-22 06:56:06,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2020-12-22 06:56:06,747 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2020-12-22 06:56:06,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:06,747 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2020-12-22 06:56:06,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:06,747 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2020-12-22 06:56:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:56:06,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:06,749 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 06:56:06,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:06,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:06,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:06,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2020-12-22 06:56:06,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:06,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902655140] [2020-12-22 06:56:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:06,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:06,882 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 06:56:06,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902655140] [2020-12-22 06:56:06,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:06,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:06,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305765218] [2020-12-22 06:56:06,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:06,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:06,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:06,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:06,890 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2020-12-22 06:56:06,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:06,945 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2020-12-22 06:56:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:06,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:56:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:06,948 INFO L225 Difference]: With dead ends: 229 [2020-12-22 06:56:06,949 INFO L226 Difference]: Without dead ends: 87 [2020-12-22 06:56:06,953 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 06:56:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-12-22 06:56:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-12-22 06:56:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-12-22 06:56:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2020-12-22 06:56:06,968 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2020-12-22 06:56:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:06,968 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2020-12-22 06:56:06,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2020-12-22 06:56:06,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:06,969 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:06,969 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 06:56:06,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:06,974 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:06,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:06,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2020-12-22 06:56:06,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:06,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714330261] [2020-12-22 06:56:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:07,150 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 06:56:07,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714330261] [2020-12-22 06:56:07,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:07,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:07,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249990569] [2020-12-22 06:56:07,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:07,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:07,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:07,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:07,158 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 5 states. [2020-12-22 06:56:07,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:07,221 INFO L93 Difference]: Finished difference Result 193 states and 285 transitions. [2020-12-22 06:56:07,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:07,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-22 06:56:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:07,223 INFO L225 Difference]: With dead ends: 193 [2020-12-22 06:56:07,224 INFO L226 Difference]: Without dead ends: 112 [2020-12-22 06:56:07,225 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 06:56:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-12-22 06:56:07,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2020-12-22 06:56:07,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 06:56:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2020-12-22 06:56:07,238 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2020-12-22 06:56:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:07,238 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2020-12-22 06:56:07,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2020-12-22 06:56:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:56:07,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:07,240 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 06:56:07,241 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:07,241 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:07,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:07,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2020-12-22 06:56:07,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:07,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022325837] [2020-12-22 06:56:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:07,351 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 06:56:07,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022325837] [2020-12-22 06:56:07,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:07,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:07,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36491262] [2020-12-22 06:56:07,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:07,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:07,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:07,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:07,357 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2020-12-22 06:56:07,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:07,411 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2020-12-22 06:56:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:07,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2020-12-22 06:56:07,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:07,415 INFO L225 Difference]: With dead ends: 218 [2020-12-22 06:56:07,415 INFO L226 Difference]: Without dead ends: 116 [2020-12-22 06:56:07,418 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 06:56:07,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-22 06:56:07,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-12-22 06:56:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-22 06:56:07,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2020-12-22 06:56:07,443 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2020-12-22 06:56:07,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:07,444 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2020-12-22 06:56:07,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:07,444 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2020-12-22 06:56:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:56:07,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:07,447 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 06:56:07,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:07,447 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:07,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:07,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2020-12-22 06:56:07,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:07,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072299426] [2020-12-22 06:56:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:07,535 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 06:56:07,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072299426] [2020-12-22 06:56:07,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:07,536 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:07,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387840040] [2020-12-22 06:56:07,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:07,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:07,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:07,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:07,538 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 5 states. [2020-12-22 06:56:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:07,661 INFO L93 Difference]: Finished difference Result 578 states and 838 transitions. [2020-12-22 06:56:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:56:07,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 06:56:07,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:07,665 INFO L225 Difference]: With dead ends: 578 [2020-12-22 06:56:07,665 INFO L226 Difference]: Without dead ends: 470 [2020-12-22 06:56:07,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-12-22 06:56:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 183. [2020-12-22 06:56:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-22 06:56:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2020-12-22 06:56:07,685 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 27 [2020-12-22 06:56:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:07,685 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2020-12-22 06:56:07,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:07,685 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2020-12-22 06:56:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 06:56:07,687 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:07,687 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 06:56:07,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:07,687 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:07,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2020-12-22 06:56:07,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:07,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237860618] [2020-12-22 06:56:07,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:56:07,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:56:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:56:07,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:56:07,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:56:07,916 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:56:07,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:08,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:08 BoogieIcfgContainer [2020-12-22 06:56:08,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:08,015 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:08,015 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:08,015 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:08,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:06" (3/4) ... [2020-12-22 06:56:08,018 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:56:08,131 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product64.cil.c-witness.graphml [2020-12-22 06:56:08,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:08,136 INFO L168 Benchmark]: Toolchain (without parser) took 4361.48 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 109.2 MB in the beginning and 142.3 MB in the end (delta: -33.1 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,137 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:08,137 INFO L168 Benchmark]: CACSL2BoogieTranslator took 587.66 ms. Allocated memory is still 154.1 MB. Free memory was 109.0 MB in the beginning and 123.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 202.35 ms. Allocated memory is still 154.1 MB. Free memory was 123.3 MB in the beginning and 132.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,143 INFO L168 Benchmark]: Boogie Preprocessor took 85.41 ms. Allocated memory is still 154.1 MB. Free memory was 132.8 MB in the beginning and 128.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,144 INFO L168 Benchmark]: RCFGBuilder took 1492.14 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 128.6 MB in the beginning and 123.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 49.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,144 INFO L168 Benchmark]: TraceAbstraction took 1866.17 ms. Allocated memory is still 191.9 MB. Free memory was 122.5 MB in the beginning and 153.8 MB in the end (delta: -31.3 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,144 INFO L168 Benchmark]: Witness Printer took 116.67 ms. Allocated memory is still 191.9 MB. Free memory was 153.8 MB in the beginning and 142.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:08,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 154.1 MB. Free memory is still 126.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 587.66 ms. Allocated memory is still 154.1 MB. Free memory was 109.0 MB in the beginning and 123.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 202.35 ms. Allocated memory is still 154.1 MB. Free memory was 123.3 MB in the beginning and 132.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 2.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 85.41 ms. Allocated memory is still 154.1 MB. Free memory was 132.8 MB in the beginning and 128.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1492.14 ms. Allocated memory was 154.1 MB in the beginning and 191.9 MB in the end (delta: 37.7 MB). Free memory was 128.6 MB in the beginning and 123.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 49.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1866.17 ms. Allocated memory is still 191.9 MB. Free memory was 122.5 MB in the beginning and 153.8 MB in the end (delta: -31.3 MB). Peak memory consumption was 55.7 MB. Max. memory is 8.0 GB. * Witness Printer took 116.67 ms. Allocated memory is still 191.9 MB. Free memory was 153.8 MB in the beginning and 142.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 998]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L92] int pumpRunning = 0; [L93] int systemActive = 1; [L429] int waterLevel = 1; [L430] int methaneLevelCritical = 0; [L701] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L898] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L360] int splverifierCounter ; [L361] int tmp ; [L362] int tmp___0 ; [L363] int tmp___1 ; [L364] int tmp___2 ; [L367] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L371] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L377] tmp = __VERIFIER_nondet_int() [L379] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L447] COND TRUE waterLevel < 2 [L448] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L387] tmp___0 = __VERIFIER_nondet_int() [L389] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L397] tmp___2 = __VERIFIER_nondet_int() [L399] COND FALSE !(\read(tmp___2)) [L405] tmp___1 = __VERIFIER_nondet_int() [L407] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L336] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L343] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L100] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1004] int tmp ; [L1005] int tmp___0 ; [L1006] int tmp___1 ; [L468] int retValue_acc ; [L471] retValue_acc = methaneLevelCritical [L472] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1010] tmp = isMethaneLevelCritical() [L1012] COND FALSE !(\read(tmp)) [L500] int retValue_acc ; [L503] retValue_acc = waterLevel [L504] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1016] tmp___0 = getWaterLevel() [L1018] COND TRUE tmp___0 == 2 [L250] int retValue_acc ; [L253] retValue_acc = pumpRunning [L254] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1020] tmp___1 = isPumpRunning() [L1022] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L998] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 867 SDtfs, 1013 SDslu, 517 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 293 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...