./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer --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 ab53d3429947c30ff169bac7bc42ee99cd27cfaa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:04:37,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:04:37,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:04:37,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:04:37,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:04:37,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:04:37,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:04:37,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:04:37,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:04:37,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:04:37,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:04:37,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:04:37,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:04:37,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:04:37,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:04:37,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:04:37,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:04:37,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:04:37,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:04:37,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:04:37,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:04:37,201 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:04:37,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:04:37,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:04:37,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:04:37,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:04:37,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:04:37,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:04:37,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:04:37,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:04:37,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:04:37,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:04:37,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:04:37,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:04:37,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:04:37,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:04:37,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:04:37,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:04:37,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:04:37,219 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:04:37,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:04:37,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:04:37,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:04:37,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:04:37,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:04:37,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:04:37,272 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:04:37,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:04:37,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:04:37,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:04:37,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:04:37,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:04:37,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:04:37,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:04:37,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:04:37,274 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:04:37,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:04:37,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:04:37,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:04:37,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:04:37,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:04:37,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:04:37,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:04:37,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:37,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:04:37,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:04:37,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:04:37,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:04:37,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:04:37,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:04:37,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:04:37,281 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:/tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab53d3429947c30ff169bac7bc42ee99cd27cfaa [2020-11-28 03:04:37,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:04:37,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:04:37,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:04:37,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:04:37,620 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:04:37,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-28 03:04:37,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/data/309305cd1/edb55e66eb264d34937e413db7d33d2c/FLAGc1c4c35f8 [2020-11-28 03:04:38,319 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:04:38,319 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/sv-benchmarks/c/product-lines/minepump_spec4_product49.cil.c [2020-11-28 03:04:38,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/data/309305cd1/edb55e66eb264d34937e413db7d33d2c/FLAGc1c4c35f8 [2020-11-28 03:04:38,643 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/data/309305cd1/edb55e66eb264d34937e413db7d33d2c [2020-11-28 03:04:38,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:04:38,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:04:38,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:38,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:04:38,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:04:38,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:38" (1/1) ... [2020-11-28 03:04:38,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd80822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:38, skipping insertion in model container [2020-11-28 03:04:38,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:04:38" (1/1) ... [2020-11-28 03:04:38,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:04:38,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:04:39,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:39,118 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:04:39,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:04:39,257 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:04:39,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39 WrapperNode [2020-11-28 03:04:39,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:04:39,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:39,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:04:39,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:04:39,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,284 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:04:39,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:04:39,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:04:39,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:04:39,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... [2020-11-28 03:04:39,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:04:39,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:04:39,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:04:39,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:04:39,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:04:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:04:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:04:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:04:39,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:04:40,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:04:40,716 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-28 03:04:40,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:40 BoogieIcfgContainer [2020-11-28 03:04:40,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:04:40,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:04:40,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:04:40,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:04:40,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:04:38" (1/3) ... [2020-11-28 03:04:40,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d882652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:40, skipping insertion in model container [2020-11-28 03:04:40,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:04:39" (2/3) ... [2020-11-28 03:04:40,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d882652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:04:40, skipping insertion in model container [2020-11-28 03:04:40,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:40" (3/3) ... [2020-11-28 03:04:40,732 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-11-28 03:04:40,746 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:04:40,752 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:04:40,766 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:04:40,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:04:40,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:04:40,816 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:04:40,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:04:40,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:04:40,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:04:40,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:04:40,817 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:04:40,849 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-28 03:04:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:04:40,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:40,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:40,858 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:40,867 INFO L82 PathProgramCache]: Analyzing trace with hash -948451738, now seen corresponding path program 1 times [2020-11-28 03:04:40,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:40,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850467502] [2020-11-28 03:04:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:41,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:41,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850467502] [2020-11-28 03:04:41,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:41,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:41,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662213037] [2020-11-28 03:04:41,151 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:04:41,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:41,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:04:41,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:04:41,170 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-28 03:04:41,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:41,208 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-11-28 03:04:41,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:04:41,210 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:04:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:41,224 INFO L225 Difference]: With dead ends: 231 [2020-11-28 03:04:41,224 INFO L226 Difference]: Without dead ends: 113 [2020-11-28 03:04:41,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:04:41,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-28 03:04:41,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-28 03:04:41,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-28 03:04:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-11-28 03:04:41,282 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-11-28 03:04:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:41,282 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-11-28 03:04:41,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:04:41,283 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-11-28 03:04:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:04:41,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:41,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:41,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:04:41,285 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:41,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:41,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1995208635, now seen corresponding path program 1 times [2020-11-28 03:04:41,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:41,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630923055] [2020-11-28 03:04:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:41,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:41,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630923055] [2020-11-28 03:04:41,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:41,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:04:41,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713965881] [2020-11-28 03:04:41,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:41,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:41,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:41,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,462 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 3 states. [2020-11-28 03:04:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:41,481 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-28 03:04:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:41,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:04:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:41,483 INFO L225 Difference]: With dead ends: 113 [2020-11-28 03:04:41,483 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:04:41,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:04:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:04:41,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:04:41,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-28 03:04:41,492 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-11-28 03:04:41,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:41,493 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-28 03:04:41,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:41,493 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-28 03:04:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:04:41,495 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:41,495 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:41,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:04:41,495 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:41,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-11-28 03:04:41,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:41,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652725933] [2020-11-28 03:04:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:41,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652725933] [2020-11-28 03:04:41,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:41,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:41,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389026509] [2020-11-28 03:04:41,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:41,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:41,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:41,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,665 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2020-11-28 03:04:41,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:41,682 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-11-28 03:04:41,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:41,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:04:41,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:41,690 INFO L225 Difference]: With dead ends: 88 [2020-11-28 03:04:41,690 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:04:41,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:04:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-28 03:04:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-28 03:04:41,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-28 03:04:41,709 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-11-28 03:04:41,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:41,710 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-28 03:04:41,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:41,711 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-28 03:04:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:04:41,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:41,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:41,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:04:41,714 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:41,714 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-11-28 03:04:41,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:41,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060624011] [2020-11-28 03:04:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:41,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:41,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060624011] [2020-11-28 03:04:41,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:41,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:04:41,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533243034] [2020-11-28 03:04:41,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:04:41,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:41,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:04:41,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,840 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-28 03:04:41,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:41,944 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-11-28 03:04:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:04:41,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:04:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:41,946 INFO L225 Difference]: With dead ends: 109 [2020-11-28 03:04:41,946 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 03:04:41,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:04:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 03:04:41,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-11-28 03:04:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-28 03:04:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-11-28 03:04:41,961 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-11-28 03:04:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:41,961 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-11-28 03:04:41,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:04:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-11-28 03:04:41,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:04:41,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:41,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:41,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:04:41,964 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:41,964 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-11-28 03:04:41,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:41,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442860935] [2020-11-28 03:04:41,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:42,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442860935] [2020-11-28 03:04:42,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:42,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:42,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295073829] [2020-11-28 03:04:42,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:42,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:42,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:42,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:42,050 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-11-28 03:04:42,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:42,209 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-11-28 03:04:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:04:42,210 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-28 03:04:42,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:42,212 INFO L225 Difference]: With dead ends: 175 [2020-11-28 03:04:42,212 INFO L226 Difference]: Without dead ends: 115 [2020-11-28 03:04:42,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:42,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-28 03:04:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-28 03:04:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:04:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-11-28 03:04:42,224 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-11-28 03:04:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:42,230 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-11-28 03:04:42,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-11-28 03:04:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 03:04:42,232 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:42,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:42,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:04:42,233 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:42,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:42,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-11-28 03:04:42,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:42,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837022105] [2020-11-28 03:04:42,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:42,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837022105] [2020-11-28 03:04:42,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:42,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:42,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459899892] [2020-11-28 03:04:42,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:04:42,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:42,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:04:42,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:04:42,408 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 6 states. [2020-11-28 03:04:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:42,844 INFO L93 Difference]: Finished difference Result 478 states and 677 transitions. [2020-11-28 03:04:42,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:04:42,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-28 03:04:42,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:42,850 INFO L225 Difference]: With dead ends: 478 [2020-11-28 03:04:42,850 INFO L226 Difference]: Without dead ends: 412 [2020-11-28 03:04:42,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-11-28 03:04:42,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-28 03:04:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 130. [2020-11-28 03:04:42,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-28 03:04:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 179 transitions. [2020-11-28 03:04:42,903 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 179 transitions. Word has length 30 [2020-11-28 03:04:42,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:42,903 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 179 transitions. [2020-11-28 03:04:42,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:04:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 179 transitions. [2020-11-28 03:04:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:04:42,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:42,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:42,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:04:42,919 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:42,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:42,920 INFO L82 PathProgramCache]: Analyzing trace with hash -150608481, now seen corresponding path program 1 times [2020-11-28 03:04:42,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:42,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443259077] [2020-11-28 03:04:42,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:43,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:43,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443259077] [2020-11-28 03:04:43,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:43,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:04:43,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658655319] [2020-11-28 03:04:43,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:04:43,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:43,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:04:43,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:04:43,040 INFO L87 Difference]: Start difference. First operand 130 states and 179 transitions. Second operand 4 states. [2020-11-28 03:04:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:43,200 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2020-11-28 03:04:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:04:43,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-28 03:04:43,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:43,202 INFO L225 Difference]: With dead ends: 309 [2020-11-28 03:04:43,202 INFO L226 Difference]: Without dead ends: 185 [2020-11-28 03:04:43,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:04:43,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-28 03:04:43,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 165. [2020-11-28 03:04:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-11-28 03:04:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 220 transitions. [2020-11-28 03:04:43,251 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 220 transitions. Word has length 31 [2020-11-28 03:04:43,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:43,252 INFO L481 AbstractCegarLoop]: Abstraction has 165 states and 220 transitions. [2020-11-28 03:04:43,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:04:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 220 transitions. [2020-11-28 03:04:43,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-11-28 03:04:43,258 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:43,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:43,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:04:43,259 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:43,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:43,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1612699853, now seen corresponding path program 1 times [2020-11-28 03:04:43,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:43,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741616571] [2020-11-28 03:04:43,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:43,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:04:43,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741616571] [2020-11-28 03:04:43,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:43,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:43,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775965844] [2020-11-28 03:04:43,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:43,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:43,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:43,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:43,378 INFO L87 Difference]: Start difference. First operand 165 states and 220 transitions. Second operand 5 states. [2020-11-28 03:04:43,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:43,462 INFO L93 Difference]: Finished difference Result 365 states and 487 transitions. [2020-11-28 03:04:43,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:04:43,462 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2020-11-28 03:04:43,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:43,464 INFO L225 Difference]: With dead ends: 365 [2020-11-28 03:04:43,464 INFO L226 Difference]: Without dead ends: 206 [2020-11-28 03:04:43,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:04:43,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-11-28 03:04:43,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 141. [2020-11-28 03:04:43,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-11-28 03:04:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 184 transitions. [2020-11-28 03:04:43,490 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 184 transitions. Word has length 50 [2020-11-28 03:04:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:43,491 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 184 transitions. [2020-11-28 03:04:43,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:43,491 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 184 transitions. [2020-11-28 03:04:43,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:04:43,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:43,494 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:43,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:04:43,495 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:43,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:43,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1640111121, now seen corresponding path program 1 times [2020-11-28 03:04:43,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:43,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763208231] [2020-11-28 03:04:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:43,608 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:04:43,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763208231] [2020-11-28 03:04:43,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:43,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:43,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395004336] [2020-11-28 03:04:43,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:43,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:43,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:43,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:43,611 INFO L87 Difference]: Start difference. First operand 141 states and 184 transitions. Second operand 5 states. [2020-11-28 03:04:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:43,702 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2020-11-28 03:04:43,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:04:43,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 03:04:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:43,705 INFO L225 Difference]: With dead ends: 467 [2020-11-28 03:04:43,706 INFO L226 Difference]: Without dead ends: 356 [2020-11-28 03:04:43,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:43,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-28 03:04:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 144. [2020-11-28 03:04:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-28 03:04:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2020-11-28 03:04:43,729 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 51 [2020-11-28 03:04:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:43,732 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2020-11-28 03:04:43,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2020-11-28 03:04:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 03:04:43,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:43,733 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:43,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:04:43,734 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:43,734 INFO L82 PathProgramCache]: Analyzing trace with hash -2033138131, now seen corresponding path program 1 times [2020-11-28 03:04:43,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:43,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438772742] [2020-11-28 03:04:43,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:43,819 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:04:43,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438772742] [2020-11-28 03:04:43,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:43,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:43,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795774874] [2020-11-28 03:04:43,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:43,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:43,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:43,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:43,821 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand 5 states. [2020-11-28 03:04:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:43,996 INFO L93 Difference]: Finished difference Result 368 states and 483 transitions. [2020-11-28 03:04:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:04:43,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-11-28 03:04:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:43,999 INFO L225 Difference]: With dead ends: 368 [2020-11-28 03:04:44,000 INFO L226 Difference]: Without dead ends: 366 [2020-11-28 03:04:44,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:04:44,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-11-28 03:04:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 144. [2020-11-28 03:04:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-11-28 03:04:44,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2020-11-28 03:04:44,021 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 51 [2020-11-28 03:04:44,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:44,022 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2020-11-28 03:04:44,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:44,022 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2020-11-28 03:04:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-28 03:04:44,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:44,023 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:44,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:04:44,023 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:44,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:44,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1174079007, now seen corresponding path program 1 times [2020-11-28 03:04:44,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:44,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350237303] [2020-11-28 03:04:44,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:44,127 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:44,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350237303] [2020-11-28 03:04:44,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066884032] [2020-11-28 03:04:44,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:04:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:44,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:04:44,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:04:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:04:44,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:04:44,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-11-28 03:04:44,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720234160] [2020-11-28 03:04:44,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:04:44,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:44,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:04:44,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:04:44,365 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand 8 states. [2020-11-28 03:04:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:44,777 INFO L93 Difference]: Finished difference Result 561 states and 742 transitions. [2020-11-28 03:04:44,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 03:04:44,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-11-28 03:04:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:44,781 INFO L225 Difference]: With dead ends: 561 [2020-11-28 03:04:44,782 INFO L226 Difference]: Without dead ends: 447 [2020-11-28 03:04:44,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-11-28 03:04:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-11-28 03:04:44,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 201. [2020-11-28 03:04:44,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-11-28 03:04:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 262 transitions. [2020-11-28 03:04:44,812 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 262 transitions. Word has length 52 [2020-11-28 03:04:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:44,813 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 262 transitions. [2020-11-28 03:04:44,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:04:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 262 transitions. [2020-11-28 03:04:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-28 03:04:44,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:44,814 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:45,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-11-28 03:04:45,029 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:45,030 INFO L82 PathProgramCache]: Analyzing trace with hash -112639176, now seen corresponding path program 2 times [2020-11-28 03:04:45,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:45,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666597430] [2020-11-28 03:04:45,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-28 03:04:45,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666597430] [2020-11-28 03:04:45,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:45,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:45,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340349649] [2020-11-28 03:04:45,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:45,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:45,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:45,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:45,237 INFO L87 Difference]: Start difference. First operand 201 states and 262 transitions. Second operand 5 states. [2020-11-28 03:04:45,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:45,539 INFO L93 Difference]: Finished difference Result 584 states and 775 transitions. [2020-11-28 03:04:45,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:04:45,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-28 03:04:45,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:45,543 INFO L225 Difference]: With dead ends: 584 [2020-11-28 03:04:45,543 INFO L226 Difference]: Without dead ends: 412 [2020-11-28 03:04:45,544 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:04:45,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-28 03:04:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 274. [2020-11-28 03:04:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-11-28 03:04:45,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 355 transitions. [2020-11-28 03:04:45,587 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 355 transitions. Word has length 73 [2020-11-28 03:04:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:45,588 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 355 transitions. [2020-11-28 03:04:45,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:45,588 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 355 transitions. [2020-11-28 03:04:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-11-28 03:04:45,589 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:04:45,589 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:04:45,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 03:04:45,590 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:04:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:04:45,590 INFO L82 PathProgramCache]: Analyzing trace with hash 162120438, now seen corresponding path program 1 times [2020-11-28 03:04:45,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:04:45,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290780569] [2020-11-28 03:04:45,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:04:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:04:45,668 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 03:04:45,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290780569] [2020-11-28 03:04:45,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:04:45,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:04:45,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564733830] [2020-11-28 03:04:45,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:04:45,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:04:45,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:04:45,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:04:45,671 INFO L87 Difference]: Start difference. First operand 274 states and 355 transitions. Second operand 5 states. [2020-11-28 03:04:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:04:45,764 INFO L93 Difference]: Finished difference Result 483 states and 625 transitions. [2020-11-28 03:04:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:04:45,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-11-28 03:04:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:04:45,765 INFO L225 Difference]: With dead ends: 483 [2020-11-28 03:04:45,765 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:04:45,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:04:45,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:04:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:04:45,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:04:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:04:45,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2020-11-28 03:04:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:04:45,767 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:04:45,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:04:45,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:04:45,767 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:04:45,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 03:04:45,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:04:46,172 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-11-28 03:04:46,469 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 100 [2020-11-28 03:04:46,673 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 98 [2020-11-28 03:04:47,122 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 97 [2020-11-28 03:04:47,267 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 102 [2020-11-28 03:04:47,724 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-11-28 03:04:48,356 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 17 [2020-11-28 03:04:48,749 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 16 [2020-11-28 03:04:48,976 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2020-11-28 03:04:49,273 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 18 [2020-11-28 03:04:49,448 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 18 [2020-11-28 03:04:49,868 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 9 [2020-11-28 03:04:50,495 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 21 [2020-11-28 03:04:50,531 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L333(lines 333 350) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L333-1(lines 333 350) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L333-2(lines 333 350) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,532 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-3(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-5(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-6(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-8(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-9(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,533 INFO L274 CegarLoopResult]: For program point L435-11(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L435-12(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L435-14(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L435-15(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L435-17(lines 435 439) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L337(lines 337 345) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L337-1(lines 337 345) no Hoare annotation was computed. [2020-11-28 03:04:50,534 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 345) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L270 CegarLoopResult]: At program point L174-2(lines 174 188) the Hoare annotation is: false [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L505(lines 505 516) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L307(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L307-1(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L307-2(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L307-3(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,535 INFO L274 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L307-4(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L142(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L307-5(lines 307 324) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L142-1(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L142-2(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L142-3(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,536 INFO L274 CegarLoopResult]: For program point L142-4(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,537 INFO L274 CegarLoopResult]: For program point L142-5(lines 142 148) no Hoare annotation was computed. [2020-11-28 03:04:50,537 INFO L270 CegarLoopResult]: At program point L275(lines 274 293) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-11-28 03:04:50,537 INFO L274 CegarLoopResult]: For program point L275-1(lines 275 281) no Hoare annotation was computed. [2020-11-28 03:04:50,537 INFO L270 CegarLoopResult]: At program point L275-2(lines 274 293) the Hoare annotation is: false [2020-11-28 03:04:50,537 INFO L270 CegarLoopResult]: At program point L275-3(lines 274 293) the Hoare annotation is: false [2020-11-28 03:04:50,537 INFO L274 CegarLoopResult]: For program point L77(lines 77 81) no Hoare annotation was computed. [2020-11-28 03:04:50,537 INFO L274 CegarLoopResult]: For program point L573(lines 573 586) no Hoare annotation was computed. [2020-11-28 03:04:50,538 INFO L270 CegarLoopResult]: At program point L573-1(lines 1 955) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1) (and .cse0 (<= 2 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6) .cse1 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-11-28 03:04:50,538 INFO L274 CegarLoopResult]: For program point L573-2(lines 573 586) no Hoare annotation was computed. [2020-11-28 03:04:50,538 INFO L270 CegarLoopResult]: At program point L573-3(lines 1 955) the Hoare annotation is: false [2020-11-28 03:04:50,538 INFO L270 CegarLoopResult]: At program point L441(lines 426 444) the Hoare annotation is: false [2020-11-28 03:04:50,538 INFO L274 CegarLoopResult]: For program point L573-4(lines 573 586) no Hoare annotation was computed. [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L441-1(lines 426 444) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 0) (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L573-5(lines 1 955) the Hoare annotation is: false [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L441-2(lines 426 444) the Hoare annotation is: false [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L441-3(lines 426 444) the Hoare annotation is: false [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L441-4(lines 426 444) the Hoare annotation is: false [2020-11-28 03:04:50,539 INFO L270 CegarLoopResult]: At program point L441-5(lines 426 444) the Hoare annotation is: false [2020-11-28 03:04:50,539 INFO L274 CegarLoopResult]: For program point L178(lines 178 182) no Hoare annotation was computed. [2020-11-28 03:04:50,539 INFO L274 CegarLoopResult]: For program point L178-1(lines 275 281) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L476(lines 475 520) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L311(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L311-1(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,540 INFO L274 CegarLoopResult]: For program point L311-2(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,541 INFO L274 CegarLoopResult]: For program point L311-3(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,541 INFO L274 CegarLoopResult]: For program point L311-4(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,541 INFO L274 CegarLoopResult]: For program point L311-5(lines 311 319) no Hoare annotation was computed. [2020-11-28 03:04:50,541 INFO L274 CegarLoopResult]: For program point L477(lines 477 481) no Hoare annotation was computed. [2020-11-28 03:04:50,541 INFO L270 CegarLoopResult]: At program point L147(lines 138 151) the Hoare annotation is: false [2020-11-28 03:04:50,541 INFO L270 CegarLoopResult]: At program point L147-1(lines 138 151) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0)) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-11-28 03:04:50,541 INFO L270 CegarLoopResult]: At program point L147-2(lines 138 151) the Hoare annotation is: false [2020-11-28 03:04:50,542 INFO L270 CegarLoopResult]: At program point L147-3(lines 138 151) the Hoare annotation is: false [2020-11-28 03:04:50,542 INFO L270 CegarLoopResult]: At program point L147-4(lines 138 151) the Hoare annotation is: false [2020-11-28 03:04:50,542 INFO L270 CegarLoopResult]: At program point L147-5(lines 138 151) the Hoare annotation is: false [2020-11-28 03:04:50,542 INFO L274 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-11-28 03:04:50,542 INFO L274 CegarLoopResult]: For program point L511(lines 511 515) no Hoare annotation was computed. [2020-11-28 03:04:50,542 INFO L274 CegarLoopResult]: For program point L577-2(lines 577 583) no Hoare annotation was computed. [2020-11-28 03:04:50,542 INFO L274 CegarLoopResult]: For program point L511-2(lines 275 281) no Hoare annotation was computed. [2020-11-28 03:04:50,542 INFO L274 CegarLoopResult]: For program point L577-4(lines 577 583) no Hoare annotation was computed. [2020-11-28 03:04:50,543 INFO L270 CegarLoopResult]: At program point L282(lines 282 288) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) .cse1))) [2020-11-28 03:04:50,543 INFO L270 CegarLoopResult]: At program point L282-1(lines 282 288) the Hoare annotation is: false [2020-11-28 03:04:50,543 INFO L270 CegarLoopResult]: At program point L282-2(lines 282 288) the Hoare annotation is: false [2020-11-28 03:04:50,543 INFO L274 CegarLoopResult]: For program point L250(lines 250 257) no Hoare annotation was computed. [2020-11-28 03:04:50,543 INFO L277 CegarLoopResult]: At program point L250-1(lines 250 257) the Hoare annotation is: true [2020-11-28 03:04:50,543 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:04:50,544 INFO L274 CegarLoopResult]: For program point L485(lines 485 491) no Hoare annotation was computed. [2020-11-28 03:04:50,544 INFO L270 CegarLoopResult]: At program point L485-1(lines 485 491) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-11-28 03:04:50,544 INFO L270 CegarLoopResult]: At program point L386(lines 381 389) the Hoare annotation is: false [2020-11-28 03:04:50,544 INFO L270 CegarLoopResult]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-11-28 03:04:50,544 INFO L270 CegarLoopResult]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-11-28 03:04:50,548 INFO L274 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L270 CegarLoopResult]: At program point L552(lines 1 955) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point L454(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point L454-2(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point L454-3(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point L454-5(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L274 CegarLoopResult]: For program point L454-6(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,549 INFO L270 CegarLoopResult]: At program point L223(lines 219 225) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:04:50,551 INFO L274 CegarLoopResult]: For program point L454-8(lines 454 458) no Hoare annotation was computed. [2020-11-28 03:04:50,551 INFO L270 CegarLoopResult]: At program point L157(lines 152 160) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:04:50,551 INFO L270 CegarLoopResult]: At program point L157-1(lines 152 160) the Hoare annotation is: false [2020-11-28 03:04:50,551 INFO L270 CegarLoopResult]: At program point L157-2(lines 152 160) the Hoare annotation is: false [2020-11-28 03:04:50,552 INFO L270 CegarLoopResult]: At program point L521(lines 474 522) the Hoare annotation is: false [2020-11-28 03:04:50,552 INFO L277 CegarLoopResult]: At program point L259(lines 240 262) the Hoare annotation is: true [2020-11-28 03:04:50,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:04:50,552 INFO L270 CegarLoopResult]: At program point L460(lines 445 463) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:04:50,552 INFO L270 CegarLoopResult]: At program point L460-1(lines 445 463) the Hoare annotation is: false [2020-11-28 03:04:50,552 INFO L270 CegarLoopResult]: At program point L460-2(lines 445 463) the Hoare annotation is: false [2020-11-28 03:04:50,552 INFO L270 CegarLoopResult]: At program point L560(lines 555 563) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point L65(lines 65 69) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point L65-6(lines 65 69) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L274 CegarLoopResult]: For program point L495(lines 495 501) no Hoare annotation was computed. [2020-11-28 03:04:50,553 INFO L270 CegarLoopResult]: At program point L495-1(lines 495 501) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-11-28 03:04:50,554 INFO L270 CegarLoopResult]: At program point L134(lines 129 137) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) .cse2))) [2020-11-28 03:04:50,554 INFO L270 CegarLoopResult]: At program point L134-1(lines 129 137) the Hoare annotation is: false [2020-11-28 03:04:50,554 INFO L270 CegarLoopResult]: At program point L134-2(lines 129 137) the Hoare annotation is: false [2020-11-28 03:04:50,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:04:50 BoogieIcfgContainer [2020-11-28 03:04:50,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:04:50,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:04:50,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:04:50,596 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:04:50,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:04:40" (3/4) ... [2020-11-28 03:04:50,600 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:04:50,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:04:50,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:04:50,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:04:50,639 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:04:50,640 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:04:50,642 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:04:50,643 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:04:50,675 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) [2020-11-28 03:04:50,681 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-11-28 03:04:50,682 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-11-28 03:04:50,683 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:04:50,691 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 [2020-11-28 03:04:50,692 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:04:50,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b509a575-1124-4c3b-b610-be6d8f10ff10/bin/uautomizer/witness.graphml [2020-11-28 03:04:50,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:04:50,780 INFO L168 Benchmark]: Toolchain (without parser) took 12131.16 ms. Allocated memory was 94.4 MB in the beginning and 237.0 MB in the end (delta: 142.6 MB). Free memory was 65.4 MB in the beginning and 180.0 MB in the end (delta: -114.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,780 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:04:50,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.63 ms. Allocated memory is still 94.4 MB. Free memory was 65.2 MB in the beginning and 59.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 55.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,781 INFO L168 Benchmark]: Boogie Preprocessor took 85.66 ms. Allocated memory is still 94.4 MB. Free memory was 55.5 MB in the beginning and 52.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,782 INFO L168 Benchmark]: RCFGBuilder took 1303.63 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 52.8 MB in the beginning and 98.7 MB in the end (delta: -45.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,783 INFO L168 Benchmark]: TraceAbstraction took 9873.07 ms. Allocated memory was 136.3 MB in the beginning and 237.0 MB in the end (delta: 100.7 MB). Free memory was 97.7 MB in the beginning and 189.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 126.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,783 INFO L168 Benchmark]: Witness Printer took 182.78 ms. Allocated memory is still 237.0 MB. Free memory was 189.4 MB in the beginning and 180.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:04:50,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 94.4 MB. Free memory is still 54.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.63 ms. Allocated memory is still 94.4 MB. Free memory was 65.2 MB in the beginning and 59.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.74 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 55.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.66 ms. Allocated memory is still 94.4 MB. Free memory was 55.5 MB in the beginning and 52.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1303.63 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 52.8 MB in the beginning and 98.7 MB in the end (delta: -45.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9873.07 ms. Allocated memory was 136.3 MB in the beginning and 237.0 MB in the end (delta: 100.7 MB). Free memory was 97.7 MB in the beginning and 189.4 MB in the end (delta: -91.7 MB). Peak memory consumption was 126.5 MB. Max. memory is 16.1 GB. * Witness Printer took 182.78 ms. Allocated memory is still 237.0 MB. Free memory was 189.4 MB in the beginning and 180.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (((((\result == 1 && tmp___0 == 1) && tmp == 0) && 1 == systemActive) && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((1 == systemActive && \result == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 240]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 485]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: ((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && 1 == systemActive) && \result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: (((1 == systemActive && 2 <= waterLevel) && splverifierCounter == 0) && 1 <= \result) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (1 == systemActive && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 426]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && 2 <= waterLevel) && 1 <= tmp) && splverifierCounter == 0) && 1 <= \result) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.9s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 2144 SDslu, 2362 SDs, 0 SdLazy, 386 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1230 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 42 LocationsWithAnnotation, 42 PreInvPairs, 115 NumberOfFragments, 308 HoareAnnotationTreeSize, 42 FomulaSimplifications, 1402475 FormulaSimplificationTreeSizeReduction, 1.4s HoareSimplificationTime, 42 FomulaSimplificationsInter, 71795 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 558 ConstructedInterpolants, 0 QuantifiedInterpolants, 43947 SizeOfPredicates, 4 NumberOfNonLiveVariables, 421 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 162/168 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...