./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb3c160aa6739f38466ec4be21f196ba4a934feb ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-05 09:54:05,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-05 09:54:05,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-05 09:54:05,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-05 09:54:05,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-05 09:54:05,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-05 09:54:05,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-05 09:54:05,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-05 09:54:05,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-05 09:54:05,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-05 09:54:05,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-05 09:54:05,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-05 09:54:05,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-05 09:54:05,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-05 09:54:05,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-05 09:54:05,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-05 09:54:05,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-05 09:54:05,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-05 09:54:05,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-05 09:54:05,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-05 09:54:05,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-05 09:54:05,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-05 09:54:05,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-05 09:54:05,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-05 09:54:05,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-05 09:54:05,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-05 09:54:05,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-05 09:54:05,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-05 09:54:05,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-05 09:54:05,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-05 09:54:05,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-05 09:54:05,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-05 09:54:05,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-05 09:54:05,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-05 09:54:05,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-05 09:54:05,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-05 09:54:05,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-05 09:54:05,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-05 09:54:05,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-05 09:54:05,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-05 09:54:05,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-05 09:54:05,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-05 09:54:05,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-05 09:54:05,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-05 09:54:05,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * Use SBE=true [2021-07-05 09:54:05,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-05 09:54:05,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-05 09:54:05,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-05 09:54:05,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 09:54:05,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-05 09:54:05,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-05 09:54:05,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb3c160aa6739f38466ec4be21f196ba4a934feb [2021-07-05 09:54:05,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-05 09:54:05,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-05 09:54:05,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-05 09:54:05,792 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-05 09:54:05,792 INFO L275 PluginConnector]: CDTParser initialized [2021-07-05 09:54:05,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-07-05 09:54:05,848 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ffa74c7/d6be4a7e3c8843bcb807e4fc57526ef0/FLAG17ad720ea [2021-07-05 09:54:06,260 INFO L306 CDTParser]: Found 1 translation units. [2021-07-05 09:54:06,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2021-07-05 09:54:06,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ffa74c7/d6be4a7e3c8843bcb807e4fc57526ef0/FLAG17ad720ea [2021-07-05 09:54:06,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ffa74c7/d6be4a7e3c8843bcb807e4fc57526ef0 [2021-07-05 09:54:06,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-05 09:54:06,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-05 09:54:06,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-05 09:54:06,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-05 09:54:06,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-05 09:54:06,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:06,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7ba701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06, skipping insertion in model container [2021-07-05 09:54:06,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:06,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-05 09:54:06,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-05 09:54:06,869 WARN L224 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_product42.cil.c[16731,16744] [2021-07-05 09:54:06,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 09:54:06,884 INFO L203 MainTranslator]: Completed pre-run [2021-07-05 09:54:06,946 WARN L224 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_product42.cil.c[16731,16744] [2021-07-05 09:54:06,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-05 09:54:06,973 INFO L208 MainTranslator]: Completed translation [2021-07-05 09:54:06,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06 WrapperNode [2021-07-05 09:54:06,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-05 09:54:06,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-05 09:54:06,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-05 09:54:06,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-05 09:54:06,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-05 09:54:07,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-05 09:54:07,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-05 09:54:07,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-05 09:54:07,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-05 09:54:07,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-05 09:54:07,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-05 09:54:07,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-05 09:54:07,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (1/1) ... [2021-07-05 09:54:07,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-05 09:54:07,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-05 09:54:07,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-05 09:54:07,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-05 09:54:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-05 09:54:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-05 09:54:07,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-05 09:54:07,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-05 09:54:07,744 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-05 09:54:07,745 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-07-05 09:54:07,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:07 BoogieIcfgContainer [2021-07-05 09:54:07,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-05 09:54:07,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-05 09:54:07,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-05 09:54:07,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-05 09:54:07,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.07 09:54:06" (1/3) ... [2021-07-05 09:54:07,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703479db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 09:54:07, skipping insertion in model container [2021-07-05 09:54:07,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.07 09:54:06" (2/3) ... [2021-07-05 09:54:07,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703479db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.07 09:54:07, skipping insertion in model container [2021-07-05 09:54:07,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:07" (3/3) ... [2021-07-05 09:54:07,758 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2021-07-05 09:54:07,765 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-05 09:54:07,765 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-07-05 09:54:07,803 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-05 09:54:07,808 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-05 09:54:07,808 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-05 09:54:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-07-05 09:54:07,829 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:07,830 INFO L525 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] [2021-07-05 09:54:07,830 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:07,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:07,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2021-07-05 09:54:07,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:07,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066350901] [2021-07-05 09:54:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:07,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066350901] [2021-07-05 09:54:08,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066350901] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 09:54:08,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696744509] [2021-07-05 09:54:08,043 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 09:54:08,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 09:54:08,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,052 INFO L87 Difference]: Start difference. First operand has 91 states, 87 states have (on average 1.5632183908045978) internal successors, (136), 90 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,085 INFO L93 Difference]: Finished difference Result 175 states and 264 transitions. [2021-07-05 09:54:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 09:54:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-07-05 09:54:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,091 INFO L225 Difference]: With dead ends: 175 [2021-07-05 09:54:08,092 INFO L226 Difference]: Without dead ends: 39 [2021-07-05 09:54:08,094 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-07-05 09:54:08,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-07-05 09:54:08,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-07-05 09:54:08,123 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2021-07-05 09:54:08,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,124 INFO L442 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-07-05 09:54:08,124 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-07-05 09:54:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-05 09:54:08,125 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,125 INFO L525 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] [2021-07-05 09:54:08,126 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-05 09:54:08,126 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2021-07-05 09:54:08,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228318447] [2021-07-05 09:54:08,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228318447] [2021-07-05 09:54:08,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228318447] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 09:54:08,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546496796] [2021-07-05 09:54:08,210 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 09:54:08,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 09:54:08,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,211 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,226 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2021-07-05 09:54:08,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 09:54:08,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-07-05 09:54:08,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,227 INFO L225 Difference]: With dead ends: 93 [2021-07-05 09:54:08,227 INFO L226 Difference]: Without dead ends: 61 [2021-07-05 09:54:08,228 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-07-05 09:54:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2021-07-05 09:54:08,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4310344827586208) internal successors, (83), 58 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2021-07-05 09:54:08,233 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2021-07-05 09:54:08,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,233 INFO L442 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2021-07-05 09:54:08,233 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,233 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2021-07-05 09:54:08,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-05 09:54:08,234 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,234 INFO L525 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] [2021-07-05 09:54:08,234 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-05 09:54:08,234 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2021-07-05 09:54:08,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246555036] [2021-07-05 09:54:08,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246555036] [2021-07-05 09:54:08,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246555036] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 09:54:08,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902956510] [2021-07-05 09:54:08,283 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 09:54:08,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 09:54:08,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 09:54:08,284 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,403 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2021-07-05 09:54:08,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-05 09:54:08,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-05 09:54:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,405 INFO L225 Difference]: With dead ends: 271 [2021-07-05 09:54:08,405 INFO L226 Difference]: Without dead ends: 219 [2021-07-05 09:54:08,406 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 43.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-05 09:54:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-07-05 09:54:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2021-07-05 09:54:08,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 102 states have (on average 1.411764705882353) internal successors, (144), 102 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2021-07-05 09:54:08,415 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2021-07-05 09:54:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,416 INFO L442 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2021-07-05 09:54:08,416 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2021-07-05 09:54:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-07-05 09:54:08,417 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,417 INFO L525 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] [2021-07-05 09:54:08,417 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-05 09:54:08,417 INFO L374 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,417 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2021-07-05 09:54:08,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243262284] [2021-07-05 09:54:08,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,445 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243262284] [2021-07-05 09:54:08,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243262284] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 09:54:08,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699278134] [2021-07-05 09:54:08,458 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 09:54:08,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 09:54:08,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 09:54:08,459 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,536 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2021-07-05 09:54:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-05 09:54:08,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-07-05 09:54:08,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,538 INFO L225 Difference]: With dead ends: 376 [2021-07-05 09:54:08,538 INFO L226 Difference]: Without dead ends: 280 [2021-07-05 09:54:08,538 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-05 09:54:08,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-07-05 09:54:08,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2021-07-05 09:54:08,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.396039603960396) internal successors, (141), 101 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2021-07-05 09:54:08,547 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2021-07-05 09:54:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,547 INFO L442 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2021-07-05 09:54:08,547 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2021-07-05 09:54:08,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-05 09:54:08,550 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,551 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:08,551 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-05 09:54:08,551 INFO L374 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,552 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2021-07-05 09:54:08,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611907834] [2021-07-05 09:54:08,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611907834] [2021-07-05 09:54:08,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611907834] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-05 09:54:08,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081790802] [2021-07-05 09:54:08,632 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-05 09:54:08,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-05 09:54:08,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-05 09:54:08,635 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,668 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2021-07-05 09:54:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-05 09:54:08,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-07-05 09:54:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,671 INFO L225 Difference]: With dead ends: 273 [2021-07-05 09:54:08,671 INFO L226 Difference]: Without dead ends: 178 [2021-07-05 09:54:08,674 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-05 09:54:08,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-07-05 09:54:08,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2021-07-05 09:54:08,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 107 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2021-07-05 09:54:08,690 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2021-07-05 09:54:08,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,695 INFO L442 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2021-07-05 09:54:08,695 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,695 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2021-07-05 09:54:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-05 09:54:08,697 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,697 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:08,698 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-05 09:54:08,698 INFO L374 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2021-07-05 09:54:08,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750336102] [2021-07-05 09:54:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 09:54:08,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750336102] [2021-07-05 09:54:08,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750336102] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-05 09:54:08,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810224104] [2021-07-05 09:54:08,756 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-05 09:54:08,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-05 09:54:08,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-05 09:54:08,756 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,776 INFO L93 Difference]: Finished difference Result 255 states and 347 transitions. [2021-07-05 09:54:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-05 09:54:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-07-05 09:54:08,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,777 INFO L225 Difference]: With dead ends: 255 [2021-07-05 09:54:08,777 INFO L226 Difference]: Without dead ends: 154 [2021-07-05 09:54:08,778 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-05 09:54:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-07-05 09:54:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 112. [2021-07-05 09:54:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 111 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2021-07-05 09:54:08,787 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2021-07-05 09:54:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,788 INFO L442 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2021-07-05 09:54:08,788 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2021-07-05 09:54:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-05 09:54:08,788 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,788 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:08,789 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-05 09:54:08,789 INFO L374 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2021-07-05 09:54:08,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320831207] [2021-07-05 09:54:08,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 09:54:08,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320831207] [2021-07-05 09:54:08,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320831207] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-05 09:54:08,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839635394] [2021-07-05 09:54:08,821 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 09:54:08,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 09:54:08,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,822 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:08,835 INFO L93 Difference]: Finished difference Result 265 states and 357 transitions. [2021-07-05 09:54:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 09:54:08,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-07-05 09:54:08,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:08,836 INFO L225 Difference]: With dead ends: 265 [2021-07-05 09:54:08,837 INFO L226 Difference]: Without dead ends: 160 [2021-07-05 09:54:08,837 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:08,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-07-05 09:54:08,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-07-05 09:54:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.3144654088050314) internal successors, (209), 159 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 209 transitions. [2021-07-05 09:54:08,848 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 209 transitions. Word has length 35 [2021-07-05 09:54:08,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:08,848 INFO L442 AbstractCegarLoop]: Abstraction has 160 states and 209 transitions. [2021-07-05 09:54:08,849 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:08,849 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 209 transitions. [2021-07-05 09:54:08,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-05 09:54:08,851 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:08,851 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:08,851 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-05 09:54:08,851 INFO L374 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:08,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:08,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2021-07-05 09:54:08,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:08,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317876176] [2021-07-05 09:54:08,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:08,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:08,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:08,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-05 09:54:08,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:08,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:08,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:08,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:08,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317876176] [2021-07-05 09:54:08,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317876176] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:08,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:08,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-05 09:54:08,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130131249] [2021-07-05 09:54:08,915 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-05 09:54:08,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:08,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-05 09:54:08,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-05 09:54:08,916 INFO L87 Difference]: Start difference. First operand 160 states and 209 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:09,060 INFO L93 Difference]: Finished difference Result 485 states and 635 transitions. [2021-07-05 09:54:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-05 09:54:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-07-05 09:54:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:09,061 INFO L225 Difference]: With dead ends: 485 [2021-07-05 09:54:09,061 INFO L226 Difference]: Without dead ends: 332 [2021-07-05 09:54:09,061 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 58.6ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-05 09:54:09,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-07-05 09:54:09,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 160. [2021-07-05 09:54:09,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 1.2893081761006289) internal successors, (205), 159 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 205 transitions. [2021-07-05 09:54:09,070 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 205 transitions. Word has length 36 [2021-07-05 09:54:09,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:09,071 INFO L442 AbstractCegarLoop]: Abstraction has 160 states and 205 transitions. [2021-07-05 09:54:09,071 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 205 transitions. [2021-07-05 09:54:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-07-05 09:54:09,072 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:09,072 INFO L525 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-05 09:54:09,072 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-05 09:54:09,072 INFO L374 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash 1527108990, now seen corresponding path program 1 times [2021-07-05 09:54:09,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:09,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803721020] [2021-07-05 09:54:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:09,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-05 09:54:09,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:09,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:09,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:09,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-05 09:54:09,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-05 09:54:09,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-05 09:54:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-05 09:54:09,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-05 09:54:09,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803721020] [2021-07-05 09:54:09,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803721020] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-05 09:54:09,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-05 09:54:09,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-05 09:54:09,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74004391] [2021-07-05 09:54:09,114 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-05 09:54:09,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-05 09:54:09,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-05 09:54:09,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:09,114 INFO L87 Difference]: Start difference. First operand 160 states and 205 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-05 09:54:09,137 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2021-07-05 09:54:09,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-05 09:54:09,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-07-05 09:54:09,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-05 09:54:09,140 INFO L225 Difference]: With dead ends: 233 [2021-07-05 09:54:09,140 INFO L226 Difference]: Without dead ends: 231 [2021-07-05 09:54:09,140 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-05 09:54:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-07-05 09:54:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 180. [2021-07-05 09:54:09,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.312849162011173) internal successors, (235), 179 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 235 transitions. [2021-07-05 09:54:09,160 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 235 transitions. Word has length 51 [2021-07-05 09:54:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-05 09:54:09,161 INFO L442 AbstractCegarLoop]: Abstraction has 180 states and 235 transitions. [2021-07-05 09:54:09,161 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-05 09:54:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 235 transitions. [2021-07-05 09:54:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-07-05 09:54:09,161 INFO L517 BasicCegarLoop]: Found error trace [2021-07-05 09:54:09,161 INFO L525 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-07-05 09:54:09,161 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-05 09:54:09,161 INFO L374 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-05 09:54:09,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-05 09:54:09,162 INFO L82 PathProgramCache]: Analyzing trace with hash 338659975, now seen corresponding path program 1 times [2021-07-05 09:54:09,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-05 09:54:09,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081321098] [2021-07-05 09:54:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-05 09:54:09,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-05 09:54:09,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 09:54:09,209 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 09:54:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-05 09:54:09,239 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-05 09:54:09,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-05 09:54:09,269 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-05 09:54:09,271 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-05 09:54:09,271 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-05 09:54:09,274 INFO L303 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was UNSAFE (1/3) [2021-07-05 09:54:09,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.07 09:54:09 BoogieIcfgContainer [2021-07-05 09:54:09,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-05 09:54:09,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-05 09:54:09,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-05 09:54:09,371 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-05 09:54:09,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.07 09:54:07" (3/4) ... [2021-07-05 09:54:09,372 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-05 09:54:09,468 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-05 09:54:09,469 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-05 09:54:09,470 INFO L168 Benchmark]: Toolchain (without parser) took 2833.31 ms. Allocated memory was 67.1 MB in the beginning and 98.6 MB in the end (delta: 31.5 MB). Free memory was 48.5 MB in the beginning and 45.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,470 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 48.9 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-05 09:54:09,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.90 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 39.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.52 ms. Allocated memory is still 67.1 MB. Free memory was 39.7 MB in the beginning and 36.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,471 INFO L168 Benchmark]: Boogie Preprocessor took 37.55 ms. Allocated memory is still 67.1 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,471 INFO L168 Benchmark]: RCFGBuilder took 666.44 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.1 MB in the beginning and 35.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,471 INFO L168 Benchmark]: TraceAbstraction took 1619.13 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 35.5 MB in the beginning and 73.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,471 INFO L168 Benchmark]: Witness Printer took 98.05 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 45.0 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-07-05 09:54:09,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 48.9 MB in the end (delta: 54.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.90 ms. Allocated memory is still 67.1 MB. Free memory was 48.3 MB in the beginning and 39.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.52 ms. Allocated memory is still 67.1 MB. Free memory was 39.7 MB in the beginning and 36.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.55 ms. Allocated memory is still 67.1 MB. Free memory was 36.4 MB in the beginning and 34.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 666.44 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.1 MB in the beginning and 35.8 MB in the end (delta: -1.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1619.13 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 35.5 MB in the beginning and 73.2 MB in the end (delta: -37.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. * Witness Printer took 98.05 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 45.0 MB in the end (delta: 28.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 846]: 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; [L488] int pumpRunning = 0; [L489] int systemActive = 1; [L668] int methAndRunningLastTime ; [L745] int cleanupTimeShifts = 4; [L852] int waterLevel = 1; [L853] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L820] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L736] int retValue_acc ; [L739] retValue_acc = 1 [L740] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] tmp = valid_product() [L828] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L673] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int splverifierCounter ; [L415] int tmp ; [L416] int tmp___0 ; [L417] int tmp___1 ; [L418] int tmp___2 ; [L421] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] COND TRUE waterLevel < 2 [L871] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] COND TRUE ! pumpRunning [L640] int retValue_acc ; [L641] int tmp ; [L642] int tmp___0 ; [L932] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L935] COND FALSE !(waterLevel < 2) [L939] retValue_acc = 0 [L940] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp = isHighWaterSensorDry() [L648] COND FALSE !(\read(tmp)) [L651] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] retValue_acc = tmp___0 [L654] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L530] tmp = isHighWaterLevel() [L532] COND TRUE \read(tmp) [L559] int tmp ; [L584] int retValue_acc ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] retValue_acc = isMethaneLevelCritical() [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] tmp = isMethaneAlarm() [L565] COND FALSE !(\read(tmp)) [L553] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] tmp = isMethaneLevelCritical() [L685] COND FALSE !(\read(tmp)) [L701] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND FALSE !(\read(methaneLevelCritical)) [L885] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] COND FALSE !(\read(methAndRunningLastTime)) [L695] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L690] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L846] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 91 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1472.3ms, OverallIterations: 10, TraceHistogramMax: 3, EmptinessCheckTime: 19.0ms, AutomataDifference: 522.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 724 SDtfs, 967 SDslu, 1274 SDs, 0 SdLazy, 172 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 170.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=9, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 106.2ms AutomataMinimizationTime, 9 MinimizatonAttempts, 631 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 38.5ms SsaConstructionTime, 246.1ms SatisfiabilityAnalysisTime, 325.5ms InterpolantComputationTime, 373 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 295 ConstructedInterpolants, 0 QuantifiedInterpolants, 557 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 14/14 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! [2021-07-05 09:54:09,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...