/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:54:34,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:54:34,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:54:34,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:54:34,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:54:34,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:54:34,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:54:34,517 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:54:34,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:54:34,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:54:34,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:54:34,530 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:54:34,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:54:34,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:54:34,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:54:34,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:54:34,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:54:34,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:54:34,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:54:34,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:54:34,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:54:34,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:54:34,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:54:34,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:54:34,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:54:34,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:54:34,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:54:34,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:54:34,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:54:34,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:54:34,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:54:34,609 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:54:34,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:54:34,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:54:34,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:54:34,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:54:34,617 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:54:34,672 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:54:34,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:54:34,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:54:34,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:54:34,679 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:54:34,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:54:34,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:54:34,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:54:34,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:54:34,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:54:34,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:54:34,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:54:34,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:54:34,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:54:34,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:54:34,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:54:34,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:54:34,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:54:34,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:54:34,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:54:34,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:54:34,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:54:34,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:54:34,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:54:34,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:54:34,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:54:35,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:54:35,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:54:35,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:54:35,109 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:54:35,110 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:54:35,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-12-22 06:54:35,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff753991c/52b061f5bf93404d91723ac1d45b8b51/FLAG50d31d910 [2020-12-22 06:54:35,994 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:54:35,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c [2020-12-22 06:54:36,011 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff753991c/52b061f5bf93404d91723ac1d45b8b51/FLAG50d31d910 [2020-12-22 06:54:36,246 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff753991c/52b061f5bf93404d91723ac1d45b8b51 [2020-12-22 06:54:36,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:54:36,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:54:36,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:36,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:54:36,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:54:36,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:36,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@baf7f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36, skipping insertion in model container [2020-12-22 06:54:36,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:36,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:54:36,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:54:36,614 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2020-12-22 06:54:36,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:36,847 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:54:36,905 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product34.cil.c[4065,4078] [2020-12-22 06:54:36,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:36,986 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:54:36,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36 WrapperNode [2020-12-22 06:54:36,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:36,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:36,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:54:36,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:54:36,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:37,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:54:37,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:54:37,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:54:37,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:54:37,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:54:37,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:54:37,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:54:37,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:54:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:54:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:54:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:54:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:54:38,460 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:54:38,461 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2020-12-22 06:54:38,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38 BoogieIcfgContainer [2020-12-22 06:54:38,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:54:38,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:54:38,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:54:38,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:54:38,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:54:36" (1/3) ... [2020-12-22 06:54:38,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13119e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:38, skipping insertion in model container [2020-12-22 06:54:38,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (2/3) ... [2020-12-22 06:54:38,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13119e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:38, skipping insertion in model container [2020-12-22 06:54:38,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38" (3/3) ... [2020-12-22 06:54:38,474 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-12-22 06:54:38,482 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:54:38,489 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:54:38,512 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:54:38,545 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:54:38,546 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:54:38,546 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:54:38,546 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:54:38,546 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:54:38,546 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:54:38,547 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:54:38,547 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:54:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2020-12-22 06:54:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:54:38,576 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:38,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:38,577 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:38,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:38,584 INFO L82 PathProgramCache]: Analyzing trace with hash -160768028, now seen corresponding path program 1 times [2020-12-22 06:54:38,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:38,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068203059] [2020-12-22 06:54:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:38,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:38,927 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 06:54:38,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068203059] [2020-12-22 06:54:38,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:38,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:38,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021188517] [2020-12-22 06:54:38,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:54:38,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:38,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:54:38,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:38,963 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2020-12-22 06:54:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,016 INFO L93 Difference]: Finished difference Result 157 states and 240 transitions. [2020-12-22 06:54:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:54:39,018 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:54:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,031 INFO L225 Difference]: With dead ends: 157 [2020-12-22 06:54:39,031 INFO L226 Difference]: Without dead ends: 78 [2020-12-22 06:54:39,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-12-22 06:54:39,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-12-22 06:54:39,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 06:54:39,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2020-12-22 06:54:39,086 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2020-12-22 06:54:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,087 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2020-12-22 06:54:39,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:54:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2020-12-22 06:54:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:54:39,089 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:54:39,090 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash -379603997, now seen corresponding path program 1 times [2020-12-22 06:54:39,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666333784] [2020-12-22 06:54:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:39,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666333784] [2020-12-22 06:54:39,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:39,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377526107] [2020-12-22 06:54:39,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,241 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2020-12-22 06:54:39,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,261 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2020-12-22 06:54:39,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:54:39,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,263 INFO L225 Difference]: With dead ends: 78 [2020-12-22 06:54:39,263 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:54:39,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:54:39,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:54:39,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:54:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-12-22 06:54:39,296 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-12-22 06:54:39,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,297 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-12-22 06:54:39,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-12-22 06:54:39,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:54:39,298 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:54:39,299 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -301457865, now seen corresponding path program 1 times [2020-12-22 06:54:39,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763120329] [2020-12-22 06:54:39,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:39,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763120329] [2020-12-22 06:54:39,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:39,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552539612] [2020-12-22 06:54:39,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,394 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-12-22 06:54:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,422 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-12-22 06:54:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,423 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:54:39,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,424 INFO L225 Difference]: With dead ends: 65 [2020-12-22 06:54:39,425 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:54:39,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:54:39,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:54:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:54:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-12-22 06:54:39,432 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-12-22 06:54:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,432 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-12-22 06:54:39,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,432 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-12-22 06:54:39,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:54:39,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:54:39,434 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,435 INFO L82 PathProgramCache]: Analyzing trace with hash -608954119, now seen corresponding path program 1 times [2020-12-22 06:54:39,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316558237] [2020-12-22 06:54:39,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:39,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316558237] [2020-12-22 06:54:39,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:39,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536282434] [2020-12-22 06:54:39,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,546 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-12-22 06:54:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,612 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2020-12-22 06:54:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:54:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,614 INFO L225 Difference]: With dead ends: 87 [2020-12-22 06:54:39,614 INFO L226 Difference]: Without dead ends: 58 [2020-12-22 06:54:39,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-22 06:54:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2020-12-22 06:54:39,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-22 06:54:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2020-12-22 06:54:39,624 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2020-12-22 06:54:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,625 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2020-12-22 06:54:39,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,625 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2020-12-22 06:54:39,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:54:39,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:54:39,627 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,627 INFO L82 PathProgramCache]: Analyzing trace with hash -584147931, now seen corresponding path program 1 times [2020-12-22 06:54:39,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911758491] [2020-12-22 06:54:39,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:39,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911758491] [2020-12-22 06:54:39,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:39,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792471950] [2020-12-22 06:54:39,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:39,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:39,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:39,728 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2020-12-22 06:54:39,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,866 INFO L93 Difference]: Finished difference Result 254 states and 372 transitions. [2020-12-22 06:54:39,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:54:39,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:54:39,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,870 INFO L225 Difference]: With dead ends: 254 [2020-12-22 06:54:39,870 INFO L226 Difference]: Without dead ends: 205 [2020-12-22 06:54:39,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:39,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-12-22 06:54:39,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 97. [2020-12-22 06:54:39,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-22 06:54:39,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2020-12-22 06:54:39,888 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 31 [2020-12-22 06:54:39,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,889 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2020-12-22 06:54:39,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2020-12-22 06:54:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:39,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:54:39,891 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1078415005, now seen corresponding path program 1 times [2020-12-22 06:54:39,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423869344] [2020-12-22 06:54:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:40,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423869344] [2020-12-22 06:54:40,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:40,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767134613] [2020-12-22 06:54:40,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:40,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:40,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:40,037 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand 5 states. [2020-12-22 06:54:40,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,198 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2020-12-22 06:54:40,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:54:40,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:54:40,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,201 INFO L225 Difference]: With dead ends: 346 [2020-12-22 06:54:40,201 INFO L226 Difference]: Without dead ends: 256 [2020-12-22 06:54:40,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:54:40,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-12-22 06:54:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 96. [2020-12-22 06:54:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-22 06:54:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 133 transitions. [2020-12-22 06:54:40,219 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 133 transitions. Word has length 32 [2020-12-22 06:54:40,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,219 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 133 transitions. [2020-12-22 06:54:40,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 133 transitions. [2020-12-22 06:54:40,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,221 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:54:40,222 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,222 INFO L82 PathProgramCache]: Analyzing trace with hash 144951296, now seen corresponding path program 1 times [2020-12-22 06:54:40,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122294056] [2020-12-22 06:54:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:40,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122294056] [2020-12-22 06:54:40,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:40,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316722969] [2020-12-22 06:54:40,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:40,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:40,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:40,348 INFO L87 Difference]: Start difference. First operand 96 states and 133 transitions. Second operand 5 states. [2020-12-22 06:54:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,438 INFO L93 Difference]: Finished difference Result 245 states and 340 transitions. [2020-12-22 06:54:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:40,439 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:54:40,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,442 INFO L225 Difference]: With dead ends: 245 [2020-12-22 06:54:40,442 INFO L226 Difference]: Without dead ends: 156 [2020-12-22 06:54:40,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:54:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-12-22 06:54:40,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 102. [2020-12-22 06:54:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-22 06:54:40,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2020-12-22 06:54:40,470 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2020-12-22 06:54:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,472 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2020-12-22 06:54:40,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2020-12-22 06:54:40,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,479 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:54:40,480 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,480 INFO L82 PathProgramCache]: Analyzing trace with hash 846015874, now seen corresponding path program 1 times [2020-12-22 06:54:40,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914377701] [2020-12-22 06:54:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:40,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914377701] [2020-12-22 06:54:40,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:40,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274659447] [2020-12-22 06:54:40,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:40,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:40,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:40,595 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 5 states. [2020-12-22 06:54:40,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,712 INFO L93 Difference]: Finished difference Result 279 states and 379 transitions. [2020-12-22 06:54:40,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:40,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:54:40,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,715 INFO L225 Difference]: With dead ends: 279 [2020-12-22 06:54:40,715 INFO L226 Difference]: Without dead ends: 184 [2020-12-22 06:54:40,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:54:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-12-22 06:54:40,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 106. [2020-12-22 06:54:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 06:54:40,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2020-12-22 06:54:40,733 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2020-12-22 06:54:40,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,733 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2020-12-22 06:54:40,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2020-12-22 06:54:40,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,735 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:54:40,735 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,736 INFO L82 PathProgramCache]: Analyzing trace with hash 259209860, now seen corresponding path program 1 times [2020-12-22 06:54:40,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608481316] [2020-12-22 06:54:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:40,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608481316] [2020-12-22 06:54:40,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:40,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454489180] [2020-12-22 06:54:40,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:40,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:40,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:40,805 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2020-12-22 06:54:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,844 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2020-12-22 06:54:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:40,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-22 06:54:40,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,848 INFO L225 Difference]: With dead ends: 253 [2020-12-22 06:54:40,849 INFO L226 Difference]: Without dead ends: 154 [2020-12-22 06:54:40,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:40,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-12-22 06:54:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-12-22 06:54:40,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-12-22 06:54:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-12-22 06:54:40,882 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2020-12-22 06:54:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,887 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-12-22 06:54:40,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:40,887 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-12-22 06:54:40,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:40,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:54:40,891 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1203693628, now seen corresponding path program 1 times [2020-12-22 06:54:40,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911283410] [2020-12-22 06:54:40,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:54:40,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911283410] [2020-12-22 06:54:40,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:40,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644098061] [2020-12-22 06:54:40,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:40,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:40,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:40,985 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-12-22 06:54:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:41,072 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2020-12-22 06:54:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:41,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 06:54:41,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:41,084 INFO L225 Difference]: With dead ends: 221 [2020-12-22 06:54:41,084 INFO L226 Difference]: Without dead ends: 219 [2020-12-22 06:54:41,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-12-22 06:54:41,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2020-12-22 06:54:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-12-22 06:54:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2020-12-22 06:54:41,108 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2020-12-22 06:54:41,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:41,108 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2020-12-22 06:54:41,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2020-12-22 06:54:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:54:41,110 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:41,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:41,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:54:41,111 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:41,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:41,112 INFO L82 PathProgramCache]: Analyzing trace with hash -389004008, now seen corresponding path program 1 times [2020-12-22 06:54:41,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:41,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861904905] [2020-12-22 06:54:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:41,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:41,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:41,334 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:54:41,334 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:54:41,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:54:41,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:54:41 BoogieIcfgContainer [2020-12-22 06:54:41,516 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:54:41,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:54:41,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:54:41,518 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:54:41,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38" (3/4) ... [2020-12-22 06:54:41,521 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:54:41,674 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec2_product34.cil.c-witness.graphml [2020-12-22 06:54:41,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:54:41,677 INFO L168 Benchmark]: Toolchain (without parser) took 5423.75 ms. Allocated memory was 158.3 MB in the beginning and 200.3 MB in the end (delta: 41.9 MB). Free memory was 132.7 MB in the beginning and 143.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 32.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,677 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:54:41,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.96 ms. Allocated memory is still 158.3 MB. Free memory was 132.6 MB in the beginning and 112.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.06 ms. Allocated memory is still 158.3 MB. Free memory was 112.0 MB in the beginning and 109.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,679 INFO L168 Benchmark]: Boogie Preprocessor took 121.78 ms. Allocated memory is still 158.3 MB. Free memory was 109.0 MB in the beginning and 139.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,679 INFO L168 Benchmark]: RCFGBuilder took 1276.30 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 85.7 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,680 INFO L168 Benchmark]: TraceAbstraction took 3050.83 ms. Allocated memory was 158.3 MB in the beginning and 200.3 MB in the end (delta: 41.9 MB). Free memory was 85.2 MB in the beginning and 164.1 MB in the end (delta: -78.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,681 INFO L168 Benchmark]: Witness Printer took 156.48 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 143.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 158.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 730.96 ms. Allocated memory is still 158.3 MB. Free memory was 132.6 MB in the beginning and 112.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 76.06 ms. Allocated memory is still 158.3 MB. Free memory was 112.0 MB in the beginning and 109.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 121.78 ms. Allocated memory is still 158.3 MB. Free memory was 109.0 MB in the beginning and 139.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1276.30 ms. Allocated memory is still 158.3 MB. Free memory was 139.7 MB in the beginning and 85.7 MB in the end (delta: 54.0 MB). Peak memory consumption was 53.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3050.83 ms. Allocated memory was 158.3 MB in the beginning and 200.3 MB in the end (delta: 41.9 MB). Free memory was 85.2 MB in the beginning and 164.1 MB in the end (delta: -78.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 8.0 GB. * Witness Printer took 156.48 ms. Allocated memory is still 200.3 MB. Free memory was 164.1 MB in the beginning and 143.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 251]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L153] int waterLevel = 1; [L154] int methaneLevelCritical = 0; [L257] int methAndRunningLastTime ; [L500] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L767] int pumpRunning = 0; [L768] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L125] int retValue_acc ; [L126] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L322] int retValue_acc ; [L325] retValue_acc = 1 [L326] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L262] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L699] int splverifierCounter ; [L700] int tmp ; [L701] int tmp___0 ; [L702] int tmp___1 ; [L703] int tmp___2 ; [L706] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L716] tmp = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L171] COND TRUE waterLevel < 2 [L172] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L183] COND FALSE !(\read(methaneLevelCritical)) [L186] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L774] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L806] COND TRUE ! pumpRunning [L900] int retValue_acc ; [L901] int tmp ; [L902] int tmp___0 ; [L233] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L236] COND FALSE !(waterLevel < 2) [L240] retValue_acc = 0 [L241] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L906] tmp = isHighWaterSensorDry() [L908] COND FALSE !(\read(tmp)) [L911] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L913] retValue_acc = tmp___0 [L914] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp = isHighWaterLevel() [L810] COND TRUE \read(tmp) [L831] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methAndRunningLastTime)) [L284] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L708] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L710] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L716] tmp = __VERIFIER_nondet_int() [L718] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L726] tmp___0 = __VERIFIER_nondet_int() [L728] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L736] tmp___2 = __VERIFIER_nondet_int() [L738] COND TRUE \read(tmp___2) [L922] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L774] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L159] COND TRUE waterLevel > 0 [L160] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] COND TRUE \read(systemActive) [L803] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L806] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L267] int tmp ; [L268] int tmp___0 ; [L192] int retValue_acc ; [L195] retValue_acc = methaneLevelCritical [L196] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L272] tmp = isMethaneLevelCritical() [L274] COND TRUE \read(tmp) [L855] int retValue_acc ; [L858] retValue_acc = pumpRunning [L859] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L276] tmp___0 = isPumpRunning() [L278] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L279] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L251] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 648 SDtfs, 728 SDslu, 845 SDs, 0 SdLazy, 107 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 438 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 15162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...