/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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:32,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:32,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:32,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:32,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:32,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:32,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:32,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:32,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:32,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:32,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:32,246 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:32,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:32,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:32,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:32,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:32,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:32,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:32,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:32,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:32,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:32,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:32,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:32,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:32,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 06:55:32,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 06:55:32,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 06:55:32,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 06:55:32,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 06:55:32,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 06:55:32,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:32,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:32,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:32,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:32,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:32,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:32,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:32,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:32,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:32,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:32,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:32,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:32,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:32,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:32,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:32,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:32,379 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:32,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:32,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:32,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:32,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:32,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:32,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:32,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:32,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:32,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:32,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:32,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:32,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:32,849 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:32,850 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:32,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-12-22 06:55:32,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f143c45/cdc531e0e42f4fc588307a4147303202/FLAG3219680ef [2020-12-22 06:55:33,683 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:33,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product32.cil.c [2020-12-22 06:55:33,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f143c45/cdc531e0e42f4fc588307a4147303202/FLAG3219680ef [2020-12-22 06:55:33,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85f143c45/cdc531e0e42f4fc588307a4147303202 [2020-12-22 06:55:33,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:33,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:33,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:33,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:33,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:33,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:33" (1/1) ... [2020-12-22 06:55:33,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11944751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:33, skipping insertion in model container [2020-12-22 06:55:33,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:33" (1/1) ... [2020-12-22 06:55:33,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:34,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:34,377 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_product32.cil.c[14950,14963] [2020-12-22 06:55:34,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:34,437 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:34,510 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_product32.cil.c[14950,14963] [2020-12-22 06:55:34,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:34,570 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:34,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34 WrapperNode [2020-12-22 06:55:34,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:34,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:34,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:34,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:34,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:34,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:34,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:34,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:34,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:34,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:34,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:34,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:34,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:35,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:35,984 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2020-12-22 06:55:35,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35 BoogieIcfgContainer [2020-12-22 06:55:35,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:35,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:35,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:35,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:35,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:33" (1/3) ... [2020-12-22 06:55:35,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d391e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:35, skipping insertion in model container [2020-12-22 06:55:35,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (2/3) ... [2020-12-22 06:55:35,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d391e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:35, skipping insertion in model container [2020-12-22 06:55:35,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35" (3/3) ... [2020-12-22 06:55:35,996 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product32.cil.c [2020-12-22 06:55:36,004 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:36,010 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:36,031 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:36,064 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:36,064 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:36,064 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:36,064 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:36,064 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:36,064 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:36,065 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:36,065 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2020-12-22 06:55:36,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:36,092 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,093 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,093 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,101 INFO L82 PathProgramCache]: Analyzing trace with hash -194461515, now seen corresponding path program 1 times [2020-12-22 06:55:36,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142186108] [2020-12-22 06:55:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142186108] [2020-12-22 06:55:36,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:36,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480285270] [2020-12-22 06:55:36,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:36,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:36,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:36,487 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2020-12-22 06:55:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,525 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2020-12-22 06:55:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:36,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:36,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,540 INFO L225 Difference]: With dead ends: 220 [2020-12-22 06:55:36,541 INFO L226 Difference]: Without dead ends: 109 [2020-12-22 06:55:36,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-22 06:55:36,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-12-22 06:55:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-12-22 06:55:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2020-12-22 06:55:36,618 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2020-12-22 06:55:36,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,619 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2020-12-22 06:55:36,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2020-12-22 06:55:36,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:36,621 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:36,622 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1105492268, now seen corresponding path program 1 times [2020-12-22 06:55:36,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380188426] [2020-12-22 06:55:36,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380188426] [2020-12-22 06:55:36,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:36,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64428055] [2020-12-22 06:55:36,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:36,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:36,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,750 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2020-12-22 06:55:36,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,786 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2020-12-22 06:55:36,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:36,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:36,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,791 INFO L225 Difference]: With dead ends: 109 [2020-12-22 06:55:36,791 INFO L226 Difference]: Without dead ends: 47 [2020-12-22 06:55:36,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-22 06:55:36,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-22 06:55:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-22 06:55:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-12-22 06:55:36,815 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2020-12-22 06:55:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,815 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-12-22 06:55:36,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-12-22 06:55:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:36,818 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:36,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2020-12-22 06:55:36,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752033774] [2020-12-22 06:55:36,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752033774] [2020-12-22 06:55:36,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:36,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542856900] [2020-12-22 06:55:36,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:36,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:36,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,931 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-12-22 06:55:36,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,985 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2020-12-22 06:55:36,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:36,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:36,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,992 INFO L225 Difference]: With dead ends: 129 [2020-12-22 06:55:36,992 INFO L226 Difference]: Without dead ends: 88 [2020-12-22 06:55:36,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-12-22 06:55:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2020-12-22 06:55:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-22 06:55:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2020-12-22 06:55:37,023 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2020-12-22 06:55:37,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,026 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2020-12-22 06:55:37,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:37,026 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2020-12-22 06:55:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:37,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:37,029 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,030 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2020-12-22 06:55:37,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470373487] [2020-12-22 06:55:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:37,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470373487] [2020-12-22 06:55:37,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:37,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567839189] [2020-12-22 06:55:37,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:37,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:37,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,184 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2020-12-22 06:55:37,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,315 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2020-12-22 06:55:37,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:37,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-22 06:55:37,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,319 INFO L225 Difference]: With dead ends: 488 [2020-12-22 06:55:37,320 INFO L226 Difference]: Without dead ends: 410 [2020-12-22 06:55:37,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:37,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-12-22 06:55:37,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2020-12-22 06:55:37,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-12-22 06:55:37,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2020-12-22 06:55:37,378 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2020-12-22 06:55:37,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,381 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2020-12-22 06:55:37,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2020-12-22 06:55:37,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:55:37,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:37,387 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2020-12-22 06:55:37,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161392521] [2020-12-22 06:55:37,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:37,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:37,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:37,713 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:37,714 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:37,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:37,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:37 BoogieIcfgContainer [2020-12-22 06:55:37,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:37,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:37,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:37,856 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:37,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35" (3/4) ... [2020-12-22 06:55:37,860 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:37,995 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product32.cil.c-witness.graphml [2020-12-22 06:55:37,996 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:37,998 INFO L168 Benchmark]: Toolchain (without parser) took 4061.43 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 135.2 MB in the beginning and 161.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:37,999 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:38,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 631.40 ms. Allocated memory is still 160.4 MB. Free memory was 135.0 MB in the beginning and 113.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.57 ms. Allocated memory is still 160.4 MB. Free memory was 113.8 MB in the beginning and 110.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,001 INFO L168 Benchmark]: Boogie Preprocessor took 53.62 ms. Allocated memory is still 160.4 MB. Free memory was 110.1 MB in the beginning and 107.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,002 INFO L168 Benchmark]: RCFGBuilder took 1252.76 ms. Allocated memory is still 160.4 MB. Free memory was 107.5 MB in the beginning and 80.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,002 INFO L168 Benchmark]: TraceAbstraction took 1866.89 ms. Allocated memory is still 160.4 MB. Free memory was 80.6 MB in the beginning and 53.9 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,003 INFO L168 Benchmark]: Witness Printer took 139.83 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 53.9 MB in the beginning and 161.5 MB in the end (delta: -107.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,007 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 631.40 ms. Allocated memory is still 160.4 MB. Free memory was 135.0 MB in the beginning and 113.8 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.57 ms. Allocated memory is still 160.4 MB. Free memory was 113.8 MB in the beginning and 110.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.62 ms. Allocated memory is still 160.4 MB. Free memory was 110.1 MB in the beginning and 107.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1252.76 ms. Allocated memory is still 160.4 MB. Free memory was 107.5 MB in the beginning and 80.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1866.89 ms. Allocated memory is still 160.4 MB. Free memory was 80.6 MB in the beginning and 53.9 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. * Witness Printer took 139.83 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 53.9 MB in the beginning and 161.5 MB in the end (delta: -107.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 714]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L491] int pumpRunning = 0; [L492] int systemActive = 1; [L719] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L795] int retValue_acc ; [L796] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L879] int retValue_acc ; [L882] retValue_acc = 1 [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L802] tmp = valid_product() [L804] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] COND TRUE waterLevel < 2 [L907] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L705] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L499] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L506] COND TRUE \read(systemActive) [L554] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L557] COND FALSE !(\read(pumpRunning)) [L528] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L531] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] int tmp ; [L821] int tmp___0 ; [L822] int tmp___1 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L826] tmp = isMethaneLevelCritical() [L828] COND FALSE !(\read(tmp)) [L959] int retValue_acc ; [L962] retValue_acc = waterLevel [L963] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L832] tmp___0 = getWaterLevel() [L834] COND TRUE tmp___0 == 2 [L623] int retValue_acc ; [L626] retValue_acc = pumpRunning [L627] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L836] tmp___1 = isPumpRunning() [L838] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L714] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 445 SDslu, 330 SDs, 0 SdLazy, 53 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...