./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.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_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/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 fed47f8471b5c81afa3edb58ddb4d4213a39ce3e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:08:46,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:46,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:46,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:46,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:46,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:46,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:46,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:46,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:46,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:46,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:46,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:46,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:46,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:46,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:46,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:46,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:46,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:46,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:46,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:46,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:46,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:46,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:46,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:46,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:46,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:46,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:46,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:46,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:46,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:46,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:46,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:46,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:46,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:46,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:46,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:46,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:46,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:46,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:46,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:46,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:46,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:46,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:46,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:46,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:46,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:46,258 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:46,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:46,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:46,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:46,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:46,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:46,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:46,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:46,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:46,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:46,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:46,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:46,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:46,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:46,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:46,263 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:46,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:46,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:46,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:46,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:46,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:46,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:46,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:46,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:46,266 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:46,266 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_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fed47f8471b5c81afa3edb58ddb4d4213a39ce3e [2020-11-28 03:08:46,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:46,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:46,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:46,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:46,616 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:46,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2020-11-28 03:08:46,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/data/ce2b3dbdc/3dfc3f7c9531406794bec21270882b00/FLAG981151a92 [2020-11-28 03:08:47,472 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:47,478 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/sv-benchmarks/c/product-lines/minepump_spec2_product47.cil.c [2020-11-28 03:08:47,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/data/ce2b3dbdc/3dfc3f7c9531406794bec21270882b00/FLAG981151a92 [2020-11-28 03:08:47,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/data/ce2b3dbdc/3dfc3f7c9531406794bec21270882b00 [2020-11-28 03:08:47,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:47,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:47,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:47,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:47,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:47,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:47" (1/1) ... [2020-11-28 03:08:47,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2ea885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:47, skipping insertion in model container [2020-11-28 03:08:47,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:47" (1/1) ... [2020-11-28 03:08:47,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:47,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:48,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:48,278 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:48,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:48,487 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:48,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48 WrapperNode [2020-11-28 03:08:48,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:48,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:48,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:48,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:48,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:48,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:48,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:48,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:48,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... [2020-11-28 03:08:48,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:48,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:48,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:48,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:48,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/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 03:08:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:50,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:50,197 INFO L298 CfgBuilder]: Removed 204 assume(true) statements. [2020-11-28 03:08:50,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:50 BoogieIcfgContainer [2020-11-28 03:08:50,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:50,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:50,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:50,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:50,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:47" (1/3) ... [2020-11-28 03:08:50,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4044cfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:50, skipping insertion in model container [2020-11-28 03:08:50,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:48" (2/3) ... [2020-11-28 03:08:50,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4044cfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:50, skipping insertion in model container [2020-11-28 03:08:50,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:50" (3/3) ... [2020-11-28 03:08:50,209 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product47.cil.c [2020-11-28 03:08:50,221 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:50,227 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:08:50,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:08:50,269 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:50,270 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:50,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:50,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:50,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:50,271 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:50,271 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:50,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2020-11-28 03:08:50,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:08:50,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:50,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:50,300 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:50,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:50,307 INFO L82 PathProgramCache]: Analyzing trace with hash 324933412, now seen corresponding path program 1 times [2020-11-28 03:08:50,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:50,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065348069] [2020-11-28 03:08:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:50,662 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 03:08:50,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065348069] [2020-11-28 03:08:50,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:50,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:08:50,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059005225] [2020-11-28 03:08:50,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:08:50,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:50,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:08:50,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:08:50,686 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2020-11-28 03:08:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:50,734 INFO L93 Difference]: Finished difference Result 266 states and 399 transitions. [2020-11-28 03:08:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:08:50,736 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-28 03:08:50,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:50,763 INFO L225 Difference]: With dead ends: 266 [2020-11-28 03:08:50,764 INFO L226 Difference]: Without dead ends: 131 [2020-11-28 03:08:50,777 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 03:08:50,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-11-28 03:08:50,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-11-28 03:08:50,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-11-28 03:08:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 190 transitions. [2020-11-28 03:08:50,844 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 190 transitions. Word has length 18 [2020-11-28 03:08:50,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:50,845 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 190 transitions. [2020-11-28 03:08:50,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:08:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 190 transitions. [2020-11-28 03:08:50,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 03:08:50,848 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:50,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:50,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:50,850 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:50,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:50,853 INFO L82 PathProgramCache]: Analyzing trace with hash 106097443, now seen corresponding path program 1 times [2020-11-28 03:08:50,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:50,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807949983] [2020-11-28 03:08:50,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:51,052 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 03:08:51,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807949983] [2020-11-28 03:08:51,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:51,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:51,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674145052] [2020-11-28 03:08:51,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:51,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:51,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:51,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:51,056 INFO L87 Difference]: Start difference. First operand 131 states and 190 transitions. Second operand 3 states. [2020-11-28 03:08:51,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:51,079 INFO L93 Difference]: Finished difference Result 131 states and 190 transitions. [2020-11-28 03:08:51,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:51,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 03:08:51,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:51,084 INFO L225 Difference]: With dead ends: 131 [2020-11-28 03:08:51,087 INFO L226 Difference]: Without dead ends: 55 [2020-11-28 03:08:51,088 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 03:08:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-11-28 03:08:51,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-11-28 03:08:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-11-28 03:08:51,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-11-28 03:08:51,104 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2020-11-28 03:08:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:51,104 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-11-28 03:08:51,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-11-28 03:08:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 03:08:51,107 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:51,108 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 03:08:51,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:08:51,109 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:51,110 INFO L82 PathProgramCache]: Analyzing trace with hash 462208575, now seen corresponding path program 1 times [2020-11-28 03:08:51,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:51,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689869694] [2020-11-28 03:08:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:51,253 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 03:08:51,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689869694] [2020-11-28 03:08:51,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:51,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:08:51,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811174944] [2020-11-28 03:08:51,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:51,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:51,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:51,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:51,256 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 3 states. [2020-11-28 03:08:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:51,297 INFO L93 Difference]: Finished difference Result 151 states and 223 transitions. [2020-11-28 03:08:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:51,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 03:08:51,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:51,304 INFO L225 Difference]: With dead ends: 151 [2020-11-28 03:08:51,305 INFO L226 Difference]: Without dead ends: 103 [2020-11-28 03:08:51,305 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 03:08:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-28 03:08:51,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 99. [2020-11-28 03:08:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-11-28 03:08:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 146 transitions. [2020-11-28 03:08:51,340 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 146 transitions. Word has length 24 [2020-11-28 03:08:51,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:51,340 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 146 transitions. [2020-11-28 03:08:51,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:51,340 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 146 transitions. [2020-11-28 03:08:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 03:08:51,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:51,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:51,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:08:51,343 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:51,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:51,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1540791297, now seen corresponding path program 1 times [2020-11-28 03:08:51,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:51,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87744301] [2020-11-28 03:08:51,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:51,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:51,419 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 03:08:51,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87744301] [2020-11-28 03:08:51,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:51,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:08:51,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484542261] [2020-11-28 03:08:51,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:51,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:51,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:51,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:51,421 INFO L87 Difference]: Start difference. First operand 99 states and 146 transitions. Second operand 3 states. [2020-11-28 03:08:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:51,511 INFO L93 Difference]: Finished difference Result 234 states and 351 transitions. [2020-11-28 03:08:51,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:51,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 03:08:51,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:51,513 INFO L225 Difference]: With dead ends: 234 [2020-11-28 03:08:51,513 INFO L226 Difference]: Without dead ends: 142 [2020-11-28 03:08:51,514 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 03:08:51,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-11-28 03:08:51,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-11-28 03:08:51,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-28 03:08:51,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 204 transitions. [2020-11-28 03:08:51,537 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 204 transitions. Word has length 26 [2020-11-28 03:08:51,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:51,537 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 204 transitions. [2020-11-28 03:08:51,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:51,537 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 204 transitions. [2020-11-28 03:08:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 03:08:51,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:51,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:51,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:08:51,539 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:51,540 INFO L82 PathProgramCache]: Analyzing trace with hash 783716552, now seen corresponding path program 1 times [2020-11-28 03:08:51,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:51,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005676126] [2020-11-28 03:08:51,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:51,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:51,680 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 03:08:51,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005676126] [2020-11-28 03:08:51,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:51,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:08:51,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834892070] [2020-11-28 03:08:51,682 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:08:51,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:51,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:08:51,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:51,683 INFO L87 Difference]: Start difference. First operand 140 states and 204 transitions. Second operand 5 states. [2020-11-28 03:08:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:51,940 INFO L93 Difference]: Finished difference Result 685 states and 1010 transitions. [2020-11-28 03:08:51,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:08:51,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 03:08:51,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:51,946 INFO L225 Difference]: With dead ends: 685 [2020-11-28 03:08:51,947 INFO L226 Difference]: Without dead ends: 552 [2020-11-28 03:08:51,950 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-11-28 03:08:52,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 259. [2020-11-28 03:08:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-11-28 03:08:52,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 372 transitions. [2020-11-28 03:08:52,010 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 372 transitions. Word has length 27 [2020-11-28 03:08:52,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:52,010 INFO L481 AbstractCegarLoop]: Abstraction has 259 states and 372 transitions. [2020-11-28 03:08:52,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:08:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 372 transitions. [2020-11-28 03:08:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-28 03:08:52,016 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:52,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:52,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:08:52,017 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:52,018 INFO L82 PathProgramCache]: Analyzing trace with hash -650428608, now seen corresponding path program 1 times [2020-11-28 03:08:52,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:52,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598251471] [2020-11-28 03:08:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,158 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 03:08:52,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598251471] [2020-11-28 03:08:52,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:52,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:08:52,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578516457] [2020-11-28 03:08:52,160 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:08:52,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:52,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:08:52,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:52,161 INFO L87 Difference]: Start difference. First operand 259 states and 372 transitions. Second operand 5 states. [2020-11-28 03:08:52,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:52,387 INFO L93 Difference]: Finished difference Result 997 states and 1435 transitions. [2020-11-28 03:08:52,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:08:52,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-11-28 03:08:52,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:52,393 INFO L225 Difference]: With dead ends: 997 [2020-11-28 03:08:52,394 INFO L226 Difference]: Without dead ends: 745 [2020-11-28 03:08:52,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:08:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-11-28 03:08:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 257. [2020-11-28 03:08:52,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-11-28 03:08:52,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 366 transitions. [2020-11-28 03:08:52,437 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 366 transitions. Word has length 28 [2020-11-28 03:08:52,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:52,447 INFO L481 AbstractCegarLoop]: Abstraction has 257 states and 366 transitions. [2020-11-28 03:08:52,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:08:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 366 transitions. [2020-11-28 03:08:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 03:08:52,457 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:52,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:52,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:08:52,458 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:52,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:52,459 INFO L82 PathProgramCache]: Analyzing trace with hash -862410324, now seen corresponding path program 1 times [2020-11-28 03:08:52,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:52,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525286468] [2020-11-28 03:08:52,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,554 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 03:08:52,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525286468] [2020-11-28 03:08:52,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:52,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:08:52,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055291378] [2020-11-28 03:08:52,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:08:52,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:52,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:08:52,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:52,557 INFO L87 Difference]: Start difference. First operand 257 states and 366 transitions. Second operand 5 states. [2020-11-28 03:08:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:52,684 INFO L93 Difference]: Finished difference Result 687 states and 965 transitions. [2020-11-28 03:08:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:08:52,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-11-28 03:08:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:52,688 INFO L225 Difference]: With dead ends: 687 [2020-11-28 03:08:52,688 INFO L226 Difference]: Without dead ends: 437 [2020-11-28 03:08:52,689 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 03:08:52,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-11-28 03:08:52,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 281. [2020-11-28 03:08:52,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-11-28 03:08:52,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 390 transitions. [2020-11-28 03:08:52,717 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 390 transitions. Word has length 36 [2020-11-28 03:08:52,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:52,718 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 390 transitions. [2020-11-28 03:08:52,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:08:52,718 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 390 transitions. [2020-11-28 03:08:52,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 03:08:52,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:52,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:52,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:08:52,720 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:52,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1873527574, now seen corresponding path program 1 times [2020-11-28 03:08:52,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:52,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659433408] [2020-11-28 03:08:52,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,778 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 03:08:52,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659433408] [2020-11-28 03:08:52,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:52,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:08:52,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054092239] [2020-11-28 03:08:52,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:52,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:52,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:52,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:52,781 INFO L87 Difference]: Start difference. First operand 281 states and 390 transitions. Second operand 4 states. [2020-11-28 03:08:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:52,858 INFO L93 Difference]: Finished difference Result 675 states and 927 transitions. [2020-11-28 03:08:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:08:52,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2020-11-28 03:08:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:52,862 INFO L225 Difference]: With dead ends: 675 [2020-11-28 03:08:52,862 INFO L226 Difference]: Without dead ends: 401 [2020-11-28 03:08:52,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:08:52,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-11-28 03:08:52,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 297. [2020-11-28 03:08:52,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-11-28 03:08:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 406 transitions. [2020-11-28 03:08:52,907 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 406 transitions. Word has length 36 [2020-11-28 03:08:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:52,907 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 406 transitions. [2020-11-28 03:08:52,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 406 transitions. [2020-11-28 03:08:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-28 03:08:52,909 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:52,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:52,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:08:52,910 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:52,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:52,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1400371368, now seen corresponding path program 1 times [2020-11-28 03:08:52,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:52,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761500233] [2020-11-28 03:08:52,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:52,995 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 03:08:52,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761500233] [2020-11-28 03:08:52,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:52,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:08:52,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549844538] [2020-11-28 03:08:52,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:52,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:52,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:53,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:53,001 INFO L87 Difference]: Start difference. First operand 297 states and 406 transitions. Second operand 3 states. [2020-11-28 03:08:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:53,066 INFO L93 Difference]: Finished difference Result 691 states and 939 transitions. [2020-11-28 03:08:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:53,067 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-11-28 03:08:53,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:53,070 INFO L225 Difference]: With dead ends: 691 [2020-11-28 03:08:53,070 INFO L226 Difference]: Without dead ends: 401 [2020-11-28 03:08:53,071 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 03:08:53,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-11-28 03:08:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2020-11-28 03:08:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-11-28 03:08:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 532 transitions. [2020-11-28 03:08:53,113 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 532 transitions. Word has length 36 [2020-11-28 03:08:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:53,113 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 532 transitions. [2020-11-28 03:08:53,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 532 transitions. [2020-11-28 03:08:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 03:08:53,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:53,116 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:53,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:08:53,116 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:53,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:53,117 INFO L82 PathProgramCache]: Analyzing trace with hash -74107416, now seen corresponding path program 1 times [2020-11-28 03:08:53,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:53,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920291101] [2020-11-28 03:08:53,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:53,226 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 03:08:53,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920291101] [2020-11-28 03:08:53,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:53,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 03:08:53,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855713434] [2020-11-28 03:08:53,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:53,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:53,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:53,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:08:53,229 INFO L87 Difference]: Start difference. First operand 401 states and 532 transitions. Second operand 6 states. [2020-11-28 03:08:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:53,899 INFO L93 Difference]: Finished difference Result 1436 states and 1911 transitions. [2020-11-28 03:08:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-28 03:08:53,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-11-28 03:08:53,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:53,912 INFO L225 Difference]: With dead ends: 1436 [2020-11-28 03:08:53,912 INFO L226 Difference]: Without dead ends: 1042 [2020-11-28 03:08:53,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-11-28 03:08:53,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2020-11-28 03:08:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 401. [2020-11-28 03:08:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-11-28 03:08:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 522 transitions. [2020-11-28 03:08:53,966 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 522 transitions. Word has length 37 [2020-11-28 03:08:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:53,967 INFO L481 AbstractCegarLoop]: Abstraction has 401 states and 522 transitions. [2020-11-28 03:08:53,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 522 transitions. [2020-11-28 03:08:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 03:08:53,969 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:53,969 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:53,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:08:53,970 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash -12405126, now seen corresponding path program 1 times [2020-11-28 03:08:53,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:53,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860517] [2020-11-28 03:08:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 03:08:54,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860517] [2020-11-28 03:08:54,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:54,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:08:54,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808565132] [2020-11-28 03:08:54,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:54,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:54,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:54,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:08:54,053 INFO L87 Difference]: Start difference. First operand 401 states and 522 transitions. Second operand 3 states. [2020-11-28 03:08:54,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:54,160 INFO L93 Difference]: Finished difference Result 489 states and 635 transitions. [2020-11-28 03:08:54,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:54,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-11-28 03:08:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:54,163 INFO L225 Difference]: With dead ends: 489 [2020-11-28 03:08:54,163 INFO L226 Difference]: Without dead ends: 200 [2020-11-28 03:08:54,164 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 03:08:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-28 03:08:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-11-28 03:08:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-11-28 03:08:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 250 transitions. [2020-11-28 03:08:54,187 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 250 transitions. Word has length 54 [2020-11-28 03:08:54,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:54,187 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 250 transitions. [2020-11-28 03:08:54,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:54,188 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 250 transitions. [2020-11-28 03:08:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-28 03:08:54,189 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:54,189 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:54,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 03:08:54,190 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:54,190 INFO L82 PathProgramCache]: Analyzing trace with hash -982052481, now seen corresponding path program 1 times [2020-11-28 03:08:54,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:54,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798849355] [2020-11-28 03:08:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,305 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:54,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798849355] [2020-11-28 03:08:54,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493906034] [2020-11-28 03:08:54,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/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 03:08:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:54,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:08:54,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:08:54,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:08:54,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-11-28 03:08:54,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923083868] [2020-11-28 03:08:54,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:08:54,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:54,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:08:54,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:54,573 INFO L87 Difference]: Start difference. First operand 200 states and 250 transitions. Second operand 3 states. [2020-11-28 03:08:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:54,671 INFO L93 Difference]: Finished difference Result 311 states and 393 transitions. [2020-11-28 03:08:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:54,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-11-28 03:08:54,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:54,675 INFO L225 Difference]: With dead ends: 311 [2020-11-28 03:08:54,675 INFO L226 Difference]: Without dead ends: 309 [2020-11-28 03:08:54,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:08:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-11-28 03:08:54,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 224. [2020-11-28 03:08:54,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-28 03:08:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 285 transitions. [2020-11-28 03:08:54,705 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 285 transitions. Word has length 56 [2020-11-28 03:08:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:54,706 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 285 transitions. [2020-11-28 03:08:54,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:08:54,706 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 285 transitions. [2020-11-28 03:08:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-11-28 03:08:54,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:54,708 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:08:54,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-11-28 03:08:54,922 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:54,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:54,923 INFO L82 PathProgramCache]: Analyzing trace with hash 744916801, now seen corresponding path program 1 times [2020-11-28 03:08:54,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:54,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080558395] [2020-11-28 03:08:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,099 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 03:08:55,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080558395] [2020-11-28 03:08:55,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454070732] [2020-11-28 03:08:55,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 03:08:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:55,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:08:55,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-11-28 03:08:55,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-28 03:08:55,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2020-11-28 03:08:55,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306601904] [2020-11-28 03:08:55,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:08:55,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:08:55,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:08:55,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-11-28 03:08:55,473 INFO L87 Difference]: Start difference. First operand 224 states and 285 transitions. Second operand 6 states. [2020-11-28 03:08:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:55,860 INFO L93 Difference]: Finished difference Result 523 states and 657 transitions. [2020-11-28 03:08:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 03:08:55,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-11-28 03:08:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:55,861 INFO L225 Difference]: With dead ends: 523 [2020-11-28 03:08:55,862 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:08:55,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2020-11-28 03:08:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:08:55,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:08:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:08:55,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:08:55,864 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2020-11-28 03:08:55,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:55,865 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:08:55,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:08:55,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:08:55,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:08:56,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-11-28 03:08:56,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:08:56,453 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 104 [2020-11-28 03:08:56,865 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 129 [2020-11-28 03:08:57,147 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2020-11-28 03:08:57,469 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 144 [2020-11-28 03:08:57,815 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 110 [2020-11-28 03:08:58,049 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2020-11-28 03:08:58,324 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2020-11-28 03:08:58,752 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 23 [2020-11-28 03:08:59,575 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 24 [2020-11-28 03:09:00,252 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 14 [2020-11-28 03:09:01,147 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 26 [2020-11-28 03:09:01,283 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2020-11-28 03:09:01,587 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2020-11-28 03:09:01,967 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 24 [2020-11-28 03:09:02,363 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 24 [2020-11-28 03:09:02,641 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 13 [2020-11-28 03:09:03,005 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 30 [2020-11-28 03:09:03,510 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 14 [2020-11-28 03:09:03,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L929(lines 929 935) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L270 CegarLoopResult]: At program point L929-1(lines 929 935) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse7 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~3 0)) (.cse5 (= 1 ~systemActive~0)) (.cse8 (= ~methaneLevelCritical~0 0)) (.cse9 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4 .cse6) (and .cse7 .cse8 .cse2 .cse9 .cse3 .cse4) (and .cse5 .cse8 .cse3 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse9 .cse4 .cse6))) [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L764(lines 764 781) no Hoare annotation was computed. [2020-11-28 03:09:03,543 INFO L274 CegarLoopResult]: For program point L764-1(lines 764 781) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L764-2(lines 764 781) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L632(lines 632 636) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L897(lines 897 903) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L270 CegarLoopResult]: At program point L897-1(lines 897 903) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1))) [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800-2(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800-4(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800-6(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800-8(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,544 INFO L274 CegarLoopResult]: For program point L800-10(lines 800 806) no Hoare annotation was computed. [2020-11-28 03:09:03,545 INFO L270 CegarLoopResult]: At program point L834(lines 829 837) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (= |ULTIMATE.start_isPumpRunning_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 (= 1 ~systemActive~0) .cse2 .cse3 .cse4))) [2020-11-28 03:09:03,545 INFO L270 CegarLoopResult]: At program point L834-1(lines 829 837) the Hoare annotation is: false [2020-11-28 03:09:03,545 INFO L274 CegarLoopResult]: For program point L768(lines 768 776) no Hoare annotation was computed. [2020-11-28 03:09:03,545 INFO L270 CegarLoopResult]: At program point L834-2(lines 829 837) the Hoare annotation is: false [2020-11-28 03:09:03,545 INFO L274 CegarLoopResult]: For program point L768-1(lines 768 776) no Hoare annotation was computed. [2020-11-28 03:09:03,545 INFO L274 CegarLoopResult]: For program point L768-2(lines 768 776) no Hoare annotation was computed. [2020-11-28 03:09:03,545 INFO L270 CegarLoopResult]: At program point L967(lines 918 968) the Hoare annotation is: false [2020-11-28 03:09:03,545 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,545 INFO L270 CegarLoopResult]: At program point L76(lines 1 974) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738-1(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738-2(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738-3(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738-4(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L738-5(lines 738 755) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L474(lines 474 491) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L270 CegarLoopResult]: At program point L474-1(lines 1 974) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse7 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~3 0)) (.cse5 (= 1 ~systemActive~0)) (.cse8 (= ~methaneLevelCritical~0 0)) (.cse9 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4 .cse6) (and .cse7 .cse8 .cse2 .cse9 .cse3 .cse4) (and .cse5 .cse8 .cse3 .cse4 .cse6) (and .cse7 .cse5 .cse8 .cse9 .cse4 .cse6))) [2020-11-28 03:09:03,546 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 491) no Hoare annotation was computed. [2020-11-28 03:09:03,546 INFO L270 CegarLoopResult]: At program point L474-3(lines 1 974) the Hoare annotation is: false [2020-11-28 03:09:03,547 INFO L274 CegarLoopResult]: For program point L474-4(lines 474 491) no Hoare annotation was computed. [2020-11-28 03:09:03,547 INFO L270 CegarLoopResult]: At program point L474-5(lines 1 974) the Hoare annotation is: false [2020-11-28 03:09:03,547 INFO L270 CegarLoopResult]: At program point L706(lines 705 724) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 1)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse3 (= ~methAndRunningLastTime~0 0)) (and .cse4 .cse5 .cse3) (and .cse0 .cse4 .cse2 .cse3) (and .cse5 .cse1 .cse2 .cse3))) [2020-11-28 03:09:03,547 INFO L274 CegarLoopResult]: For program point L706-1(lines 706 712) no Hoare annotation was computed. [2020-11-28 03:09:03,547 INFO L270 CegarLoopResult]: At program point L706-2(lines 705 724) the Hoare annotation is: false [2020-11-28 03:09:03,547 INFO L270 CegarLoopResult]: At program point L706-3(lines 705 724) the Hoare annotation is: false [2020-11-28 03:09:03,547 INFO L270 CegarLoopResult]: At program point L508-2(lines 508 522) the Hoare annotation is: false [2020-11-28 03:09:03,547 INFO L274 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-11-28 03:09:03,547 INFO L274 CegarLoopResult]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-11-28 03:09:03,547 INFO L274 CegarLoopResult]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L608(lines 608 612) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L608-3(lines 608 612) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L608-6(lines 608 612) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L939(lines 939 945) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L270 CegarLoopResult]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 1)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse3 (= ~methAndRunningLastTime~0 0)) (and .cse4 .cse5 .cse3) (and .cse5 .cse1 .cse2 .cse3))) [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L742(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L742-1(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L742-2(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L742-3(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,548 INFO L274 CegarLoopResult]: For program point L742-4(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L742-5(lines 742 750) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L478(lines 478 488) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L478-4(lines 478 488) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L512(lines 512 516) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L479(lines 479 485) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L512-1(lines 706 712) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L479-2(lines 479 485) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L274 CegarLoopResult]: For program point L479-4(lines 479 485) no Hoare annotation was computed. [2020-11-28 03:09:03,549 INFO L270 CegarLoopResult]: At program point L645(lines 640 648) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1) (= ~methaneLevelCritical~0 1) .cse0 .cse1 (= ~methAndRunningLastTime~0 0)) (and .cse0 (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1))) [2020-11-28 03:09:03,549 INFO L270 CegarLoopResult]: At program point L645-1(lines 640 648) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-2(lines 640 648) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1 .cse2) (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1) (= ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-3(lines 640 648) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1)) (.cse1 (= ~methaneLevelCritical~0 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse7 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse2 .cse6 .cse3 .cse4) (and .cse0 .cse1 .cse7 .cse3 .cse4) (and .cse7 .cse5 .cse6 .cse4))) [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-4(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-5(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-6(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-7(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-8(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,550 INFO L270 CegarLoopResult]: At program point L645-9(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L645-10(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L645-11(lines 640 648) the Hoare annotation is: false [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L84(lines 79 87) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L713(lines 713 719) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse5 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse3) (and .cse1 .cse5 .cse2 .cse3))) [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L713-1(lines 713 719) the Hoare annotation is: false [2020-11-28 03:09:03,551 INFO L270 CegarLoopResult]: At program point L713-2(lines 713 719) the Hoare annotation is: false [2020-11-28 03:09:03,551 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:09:03,551 INFO L274 CegarLoopResult]: For program point L584(lines 584 591) no Hoare annotation was computed. [2020-11-28 03:09:03,551 INFO L277 CegarLoopResult]: At program point L584-1(lines 584 591) the Hoare annotation is: true [2020-11-28 03:09:03,551 INFO L274 CegarLoopResult]: For program point L949(lines 949 962) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-2(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-3(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-5(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L685(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-6(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L685-1(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L685-2(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-8(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L685-3(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-9(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L685-4(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,552 INFO L274 CegarLoopResult]: For program point L883-11(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L685-5(lines 685 691) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L883-12(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L883-14(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L883-15(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L883-17(lines 883 887) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L620(lines 620 624) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L920(lines 919 966) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L274 CegarLoopResult]: For program point L921(lines 921 925) no Hoare annotation was computed. [2020-11-28 03:09:03,553 INFO L270 CegarLoopResult]: At program point L690(lines 681 694) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L690-1(lines 681 694) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L690-2(lines 681 694) the Hoare annotation is: false [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L690-3(lines 681 694) the Hoare annotation is: false [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L690-4(lines 681 694) the Hoare annotation is: false [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L690-5(lines 681 694) the Hoare annotation is: false [2020-11-28 03:09:03,554 INFO L274 CegarLoopResult]: For program point L955(lines 955 961) no Hoare annotation was computed. [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L955-1(lines 706 712) the Hoare annotation is: (let ((.cse0 (= ~methaneLevelCritical~0 1)) (.cse4 (= 1 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse3 (= ~methAndRunningLastTime~0 0)) (and .cse4 .cse5 .cse3) (and .cse5 .cse1 .cse2 .cse3))) [2020-11-28 03:09:03,554 INFO L270 CegarLoopResult]: At program point L889(lines 874 892) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L889-1(lines 874 892) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (and (= ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L889-2(lines 874 892) the Hoare annotation is: false [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L889-3(lines 874 892) the Hoare annotation is: false [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L889-4(lines 874 892) the Hoare annotation is: false [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L889-5(lines 874 892) the Hoare annotation is: false [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L559(lines 555 561) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-11-28 03:09:03,555 INFO L277 CegarLoopResult]: At program point L593(lines 574 596) the Hoare annotation is: true [2020-11-28 03:09:03,555 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:09:03,555 INFO L270 CegarLoopResult]: At program point L825(lines 818 828) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1) (= ~methaneLevelCritical~0 1) .cse0 (= |ULTIMATE.start_isMethaneAlarm_#res| 1) .cse1 (= ~methAndRunningLastTime~0 0)) (and .cse0 (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1))) [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-1(lines 818 828) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-11-28 03:09:03,556 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-2(lines 818 828) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isMethaneLevelCritical_#res| 1) (= ~methaneLevelCritical~0 1) .cse0 (= |ULTIMATE.start_isMethaneAlarm_#res| 1) .cse1 .cse2) (and .cse0 (= ~methaneLevelCritical~0 0) (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) .cse1 .cse2))) [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-3(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-4(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-5(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-6(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-7(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,556 INFO L270 CegarLoopResult]: At program point L825-8(lines 818 828) the Hoare annotation is: false [2020-11-28 03:09:03,557 INFO L270 CegarLoopResult]: At program point L463(lines 458 465) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0)) [2020-11-28 03:09:03,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:03 BoogieIcfgContainer [2020-11-28 03:09:03,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:03,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:03,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:03,610 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:03,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:50" (3/4) ... [2020-11-28 03:09:03,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:09:03,632 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-11-28 03:09:03,633 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-11-28 03:09:03,635 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-28 03:09:03,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:09:03,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:09:03,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:09:03,640 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:09:03,665 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && methaneLevelCritical == 0) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) [2020-11-28 03:09:03,666 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && methaneLevelCritical == 0) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) [2020-11-28 03:09:03,667 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,668 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((methaneLevelCritical == 0 && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,669 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,670 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,670 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,672 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-28 03:09:03,673 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,673 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-28 03:09:03,673 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) [2020-11-28 03:09:03,674 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-28 03:09:03,674 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 [2020-11-28 03:09:03,770 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c8bf48bf-a7eb-41d8-8510-9b9e412c7b0b/bin/uautomizer/witness.graphml [2020-11-28 03:09:03,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:03,771 INFO L168 Benchmark]: Toolchain (without parser) took 16008.35 ms. Allocated memory was 92.3 MB in the beginning and 251.7 MB in the end (delta: 159.4 MB). Free memory was 59.6 MB in the beginning and 202.7 MB in the end (delta: -143.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,772 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 52.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:03,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.87 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 57.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.16 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 53.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,773 INFO L168 Benchmark]: Boogie Preprocessor took 98.54 ms. Allocated memory is still 92.3 MB. Free memory was 53.8 MB in the beginning and 50.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,773 INFO L168 Benchmark]: RCFGBuilder took 1498.81 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 50.8 MB in the beginning and 81.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,774 INFO L168 Benchmark]: TraceAbstraction took 13408.93 ms. Allocated memory was 119.5 MB in the beginning and 251.7 MB in the end (delta: 132.1 MB). Free memory was 81.2 MB in the beginning and 215.3 MB in the end (delta: -134.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,774 INFO L168 Benchmark]: Witness Printer took 160.43 ms. Allocated memory is still 251.7 MB. Free memory was 215.3 MB in the beginning and 202.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:03,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 52.0 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 709.87 ms. Allocated memory is still 92.3 MB. Free memory was 59.4 MB in the beginning and 57.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.16 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 53.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.54 ms. Allocated memory is still 92.3 MB. Free memory was 53.8 MB in the beginning and 50.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1498.81 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 50.8 MB in the beginning and 81.9 MB in the end (delta: -31.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13408.93 ms. Allocated memory was 119.5 MB in the beginning and 251.7 MB in the end (delta: 132.1 MB). Free memory was 81.2 MB in the beginning and 215.3 MB in the end (delta: -134.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 16.1 GB. * Witness Printer took 160.43 ms. Allocated memory is still 251.7 MB. Free memory was 215.3 MB in the beginning and 202.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 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: 939]: Loop Invariant Derived loop invariant: (((((methaneLevelCritical == 1 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 1 == systemActive) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || ((1 == systemActive && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 713]: Loop Invariant Derived loop invariant: ((((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 713]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 713]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 1 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 1 == systemActive) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || ((1 == systemActive && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: (((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 929]: Loop Invariant Derived loop invariant: (((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && methaneLevelCritical == 0) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 874]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 574]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: (((((methaneLevelCritical == 1 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 1 == systemActive) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || ((1 == systemActive && methaneLevelCritical == 0) && splverifierCounter == 0)) || (((methaneLevelCritical == 0 && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: ((((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: ((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((methaneLevelCritical == 0 && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0 && pumpRunning == 0) && splverifierCounter == 0) || ((methaneLevelCritical == 1 && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: ((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 1) && splverifierCounter == 0) && methAndRunningLastTime == 0) || (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((\result == 1 && methaneLevelCritical == 1) && 0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && methaneLevelCritical == 0) && 0 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) || ((((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0)) || (((((tmp == 0 && 1 == systemActive) && methaneLevelCritical == 0) && \result == 0) && splverifierCounter == 0) && methAndRunningLastTime == 0) - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: (((((\result == 1 && methaneLevelCritical == 1) && 1 == systemActive) && \result == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 818]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0 - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: (((1 == systemActive && methaneLevelCritical == 0) && pumpRunning == 0) && splverifierCounter == 0) || (((methaneLevelCritical == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 458]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0) && methAndRunningLastTime == 0 - InvariantResult [Line: 681]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1486 SDtfs, 1680 SDslu, 2443 SDs, 0 SdLazy, 362 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=401occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 1773 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 57 LocationsWithAnnotation, 57 PreInvPairs, 241 NumberOfFragments, 879 HoareAnnotationTreeSize, 57 FomulaSimplifications, 650611 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 57 FomulaSimplificationsInter, 86266 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 609 NumberOfCodeBlocks, 609 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 594 ConstructedInterpolants, 0 QuantifiedInterpolants, 48072 SizeOfPredicates, 6 NumberOfNonLiveVariables, 948 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 121/141 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...