./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.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_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/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 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:35:40,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:35:40,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:35:40,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:35:40,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:35:40,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:35:40,131 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:35:40,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:35:40,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:35:40,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:35:40,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:35:40,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:35:40,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:35:40,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:35:40,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:35:40,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:35:40,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:35:40,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:35:40,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:35:40,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:35:40,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:35:40,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:35:40,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:35:40,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:35:40,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:35:40,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:35:40,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:35:40,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:35:40,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:35:40,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:35:40,194 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:35:40,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:35:40,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:35:40,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:35:40,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:35:40,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:35:40,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:35:40,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:35:40,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:35:40,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:35:40,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:35:40,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:35:40,240 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:35:40,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:35:40,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:35:40,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:35:40,244 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:35:40,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:35:40,244 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:35:40,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:35:40,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:35:40,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:35:40,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:35:40,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:35:40,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:35:40,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:35:40,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:35:40,247 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:35:40,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:35:40,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:35:40,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:35:40,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:35:40,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:35:40,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:35:40,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:35:40,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:35:40,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:35:40,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:35:40,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:35:40,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:35:40,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:35:40,250 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_67216b50-467f-451f-b1b9-fb4da5d7f660/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d [2020-11-29 19:35:40,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:35:40,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:35:40,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:35:40,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:35:40,644 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:35:40,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-29 19:35:40,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/data/6a00cadca/d22cc69d8fb1496f9dfd73ac65caf910/FLAG9433a95f0 [2020-11-29 19:35:41,491 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:35:41,492 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-29 19:35:41,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/data/6a00cadca/d22cc69d8fb1496f9dfd73ac65caf910/FLAG9433a95f0 [2020-11-29 19:35:41,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/data/6a00cadca/d22cc69d8fb1496f9dfd73ac65caf910 [2020-11-29 19:35:41,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:35:41,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:35:41,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:35:41,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:35:41,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:35:41,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:35:41" (1/1) ... [2020-11-29 19:35:41,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b022e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:41, skipping insertion in model container [2020-11-29 19:35:41,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:35:41" (1/1) ... [2020-11-29 19:35:41,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:35:41,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:35:42,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:35:42,348 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:35:42,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:35:42,523 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:35:42,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42 WrapperNode [2020-11-29 19:35:42,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:35:42,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:35:42,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:35:42,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:35:42,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:35:42,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:35:42,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:35:42,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:35:42,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... [2020-11-29 19:35:42,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:35:42,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:35:42,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:35:42,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:35:42,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/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 [2020-11-29 19:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:35:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:35:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:35:42,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:35:44,646 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:35:44,647 INFO L298 CfgBuilder]: Removed 284 assume(true) statements. [2020-11-29 19:35:44,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:44 BoogieIcfgContainer [2020-11-29 19:35:44,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:35:44,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:35:44,655 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:35:44,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:35:44,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:35:41" (1/3) ... [2020-11-29 19:35:44,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7e224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:35:44, skipping insertion in model container [2020-11-29 19:35:44,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:35:42" (2/3) ... [2020-11-29 19:35:44,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7e224e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:35:44, skipping insertion in model container [2020-11-29 19:35:44,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:44" (3/3) ... [2020-11-29 19:35:44,664 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-11-29 19:35:44,680 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:35:44,686 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 19:35:44,702 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 19:35:44,742 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:35:44,742 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:35:44,742 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:35:44,743 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:35:44,743 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:35:44,743 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:35:44,743 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:35:44,743 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:35:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-11-29 19:35:44,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 19:35:44,774 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:44,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:44,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:44,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:44,783 INFO L82 PathProgramCache]: Analyzing trace with hash 265155869, now seen corresponding path program 1 times [2020-11-29 19:35:44,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:44,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631181816] [2020-11-29 19:35:44,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:45,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:45,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631181816] [2020-11-29 19:35:45,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:45,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:35:45,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305962073] [2020-11-29 19:35:45,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 19:35:45,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:45,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 19:35:45,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 19:35:45,248 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2020-11-29 19:35:45,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:45,299 INFO L93 Difference]: Finished difference Result 375 states and 572 transitions. [2020-11-29 19:35:45,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 19:35:45,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 19:35:45,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:45,315 INFO L225 Difference]: With dead ends: 375 [2020-11-29 19:35:45,315 INFO L226 Difference]: Without dead ends: 185 [2020-11-29 19:35:45,320 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 [2020-11-29 19:35:45,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-29 19:35:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-11-29 19:35:45,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-29 19:35:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2020-11-29 19:35:45,382 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2020-11-29 19:35:45,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:45,383 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2020-11-29 19:35:45,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 19:35:45,383 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2020-11-29 19:35:45,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 19:35:45,385 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:45,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:45,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:35:45,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:45,387 INFO L82 PathProgramCache]: Analyzing trace with hash -781601028, now seen corresponding path program 1 times [2020-11-29 19:35:45,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:45,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176929720] [2020-11-29 19:35:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:45,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176929720] [2020-11-29 19:35:45,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:45,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:35:45,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997780946] [2020-11-29 19:35:45,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:35:45,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:45,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:35:45,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:35:45,530 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 3 states. [2020-11-29 19:35:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:45,561 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2020-11-29 19:35:45,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:35:45,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 19:35:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:45,571 INFO L225 Difference]: With dead ends: 185 [2020-11-29 19:35:45,571 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 19:35:45,573 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 [2020-11-29 19:35:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 19:35:45,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 19:35:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 19:35:45,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-11-29 19:35:45,582 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2020-11-29 19:35:45,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:45,583 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-11-29 19:35:45,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:35:45,583 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-11-29 19:35:45,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 19:35:45,584 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:45,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:45,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 19:35:45,596 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:45,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:45,597 INFO L82 PathProgramCache]: Analyzing trace with hash -886510538, now seen corresponding path program 1 times [2020-11-29 19:35:45,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:45,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744594022] [2020-11-29 19:35:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:45,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:45,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744594022] [2020-11-29 19:35:45,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:45,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 19:35:45,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790926642] [2020-11-29 19:35:45,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:35:45,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:45,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:35:45,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:35:45,767 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-11-29 19:35:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:45,817 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2020-11-29 19:35:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:35:45,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 19:35:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:45,821 INFO L225 Difference]: With dead ends: 136 [2020-11-29 19:35:45,823 INFO L226 Difference]: Without dead ends: 71 [2020-11-29 19:35:45,825 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 [2020-11-29 19:35:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-29 19:35:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-29 19:35:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-29 19:35:45,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-11-29 19:35:45,846 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2020-11-29 19:35:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:45,847 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-11-29 19:35:45,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:35:45,848 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-11-29 19:35:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 19:35:45,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:45,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:45,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 19:35:45,852 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:45,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1823541737, now seen corresponding path program 1 times [2020-11-29 19:35:45,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:45,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579177369] [2020-11-29 19:35:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:45,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579177369] [2020-11-29 19:35:45,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:45,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:35:45,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075522346] [2020-11-29 19:35:45,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:35:45,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:45,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:35:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:35:45,972 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-11-29 19:35:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:46,056 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2020-11-29 19:35:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:35:46,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-29 19:35:46,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:46,058 INFO L225 Difference]: With dead ends: 145 [2020-11-29 19:35:46,058 INFO L226 Difference]: Without dead ends: 80 [2020-11-29 19:35:46,059 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 [2020-11-29 19:35:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-29 19:35:46,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2020-11-29 19:35:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-29 19:35:46,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2020-11-29 19:35:46,082 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2020-11-29 19:35:46,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:46,083 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2020-11-29 19:35:46,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:35:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2020-11-29 19:35:46,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 19:35:46,086 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:46,087 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:46,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 19:35:46,087 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:46,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:46,089 INFO L82 PathProgramCache]: Analyzing trace with hash -920121944, now seen corresponding path program 1 times [2020-11-29 19:35:46,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:46,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065529379] [2020-11-29 19:35:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:46,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065529379] [2020-11-29 19:35:46,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:46,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:35:46,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247168742] [2020-11-29 19:35:46,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:35:46,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:46,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:35:46,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:35:46,231 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2020-11-29 19:35:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:46,399 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2020-11-29 19:35:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:35:46,400 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-29 19:35:46,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:46,401 INFO L225 Difference]: With dead ends: 204 [2020-11-29 19:35:46,402 INFO L226 Difference]: Without dead ends: 132 [2020-11-29 19:35:46,402 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 [2020-11-29 19:35:46,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-29 19:35:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2020-11-29 19:35:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-29 19:35:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2020-11-29 19:35:46,424 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2020-11-29 19:35:46,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:46,424 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2020-11-29 19:35:46,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:35:46,425 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2020-11-29 19:35:46,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 19:35:46,426 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:46,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:46,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 19:35:46,427 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:46,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:46,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1742389099, now seen corresponding path program 1 times [2020-11-29 19:35:46,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:46,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435185518] [2020-11-29 19:35:46,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:46,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:46,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435185518] [2020-11-29 19:35:46,536 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:46,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:35:46,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508061118] [2020-11-29 19:35:46,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:35:46,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:46,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:35:46,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:35:46,538 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2020-11-29 19:35:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:46,703 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2020-11-29 19:35:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 19:35:46,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-29 19:35:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:46,707 INFO L225 Difference]: With dead ends: 431 [2020-11-29 19:35:46,707 INFO L226 Difference]: Without dead ends: 350 [2020-11-29 19:35:46,710 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 [2020-11-29 19:35:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-29 19:35:46,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2020-11-29 19:35:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-29 19:35:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2020-11-29 19:35:46,747 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2020-11-29 19:35:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:46,752 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2020-11-29 19:35:46,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:35:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2020-11-29 19:35:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 19:35:46,759 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:46,759 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:46,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 19:35:46,760 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1092376181, now seen corresponding path program 1 times [2020-11-29 19:35:46,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:46,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370696621] [2020-11-29 19:35:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:46,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370696621] [2020-11-29 19:35:46,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:46,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 19:35:46,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374854627] [2020-11-29 19:35:46,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:35:46,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:46,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:35:46,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:35:46,867 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 5 states. [2020-11-29 19:35:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:47,089 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2020-11-29 19:35:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 19:35:47,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 19:35:47,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:47,094 INFO L225 Difference]: With dead ends: 470 [2020-11-29 19:35:47,094 INFO L226 Difference]: Without dead ends: 468 [2020-11-29 19:35:47,095 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 [2020-11-29 19:35:47,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-11-29 19:35:47,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2020-11-29 19:35:47,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-29 19:35:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2020-11-29 19:35:47,146 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2020-11-29 19:35:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:47,147 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2020-11-29 19:35:47,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:35:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2020-11-29 19:35:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 19:35:47,153 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:47,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:47,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 19:35:47,154 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:47,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1963161872, now seen corresponding path program 1 times [2020-11-29 19:35:47,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:47,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329869614] [2020-11-29 19:35:47,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:47,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329869614] [2020-11-29 19:35:47,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:47,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 19:35:47,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899288428] [2020-11-29 19:35:47,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 19:35:47,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:47,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 19:35:47,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 19:35:47,245 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand 5 states. [2020-11-29 19:35:47,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:47,416 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2020-11-29 19:35:47,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 19:35:47,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-29 19:35:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:47,424 INFO L225 Difference]: With dead ends: 428 [2020-11-29 19:35:47,424 INFO L226 Difference]: Without dead ends: 272 [2020-11-29 19:35:47,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 19:35:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-29 19:35:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2020-11-29 19:35:47,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-29 19:35:47,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2020-11-29 19:35:47,455 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2020-11-29 19:35:47,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:47,455 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2020-11-29 19:35:47,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 19:35:47,456 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2020-11-29 19:35:47,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-29 19:35:47,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:47,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:47,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 19:35:47,461 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:47,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:47,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1704996434, now seen corresponding path program 1 times [2020-11-29 19:35:47,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:47,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063524913] [2020-11-29 19:35:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:47,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:35:47,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:35:47,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063524913] [2020-11-29 19:35:47,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:35:47,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 19:35:47,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180581211] [2020-11-29 19:35:47,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 19:35:47,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 19:35:47,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 19:35:47,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 19:35:47,542 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 3 states. [2020-11-29 19:35:47,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:35:47,617 INFO L93 Difference]: Finished difference Result 394 states and 524 transitions. [2020-11-29 19:35:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:35:47,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-29 19:35:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:35:47,619 INFO L225 Difference]: With dead ends: 394 [2020-11-29 19:35:47,620 INFO L226 Difference]: Without dead ends: 226 [2020-11-29 19:35:47,622 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 [2020-11-29 19:35:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-29 19:35:47,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-29 19:35:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-29 19:35:47,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2020-11-29 19:35:47,663 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 32 [2020-11-29 19:35:47,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:35:47,664 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2020-11-29 19:35:47,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 19:35:47,664 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2020-11-29 19:35:47,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 19:35:47,666 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:35:47,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 19:35:47,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 19:35:47,667 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:35:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:35:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1518924332, now seen corresponding path program 1 times [2020-11-29 19:35:47,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:35:47,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45441085] [2020-11-29 19:35:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:35:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:35:47,796 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:35:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:35:47,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:35:47,955 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:35:47,956 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:35:47,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 19:35:48,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:35:48 BoogieIcfgContainer [2020-11-29 19:35:48,127 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:35:48,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:35:48,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:35:48,128 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:35:48,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:35:44" (3/4) ... [2020-11-29 19:35:48,134 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 19:35:48,244 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_67216b50-467f-451f-b1b9-fb4da5d7f660/bin/uautomizer/witness.graphml [2020-11-29 19:35:48,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:35:48,246 INFO L168 Benchmark]: Toolchain (without parser) took 6507.47 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 71.6 MB in the beginning and 60.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,246 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 75.5 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:35:48,247 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.91 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 68.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.06 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 63.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,248 INFO L168 Benchmark]: Boogie Preprocessor took 139.68 ms. Allocated memory is still 102.8 MB. Free memory was 63.6 MB in the beginning and 60.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,248 INFO L168 Benchmark]: RCFGBuilder took 1846.19 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 60.0 MB in the beginning and 87.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,255 INFO L168 Benchmark]: TraceAbstraction took 3473.19 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 74.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,256 INFO L168 Benchmark]: Witness Printer took 116.30 ms. Allocated memory is still 125.8 MB. Free memory was 74.5 MB in the beginning and 60.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 19:35:48,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 75.5 MB. Free memory was 38.5 MB in the beginning and 38.5 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 780.91 ms. Allocated memory is still 102.8 MB. Free memory was 71.3 MB in the beginning and 68.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.06 ms. Allocated memory is still 102.8 MB. Free memory was 68.4 MB in the beginning and 63.6 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.68 ms. Allocated memory is still 102.8 MB. Free memory was 63.6 MB in the beginning and 60.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1846.19 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 60.0 MB in the beginning and 87.1 MB in the end (delta: -27.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3473.19 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 74.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Witness Printer took 116.30 ms. Allocated memory is still 125.8 MB. Free memory was 74.5 MB in the beginning and 60.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L693] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L891] int waterLevel = 1; [L892] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; [L492] retValue_acc = 1 [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] COND TRUE waterLevel < 2 [L910] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] COND FALSE !(\read(methaneLevelCritical)) [L924] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L458] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L239] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L246] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L323] COND FALSE !(\read(pumpRunning)) [L294] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L297] COND FALSE !(\read(pumpRunning)) [L268] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L271] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L971] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L974] COND FALSE !(waterLevel < 2) [L978] retValue_acc = 0 [L979] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L423] tmp = isHighWaterSensorDry() [L425] COND FALSE !(\read(tmp)) [L428] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isHighWaterLevel() [L275] COND TRUE \read(tmp) [L348] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int tmp ; [L500] int tmp___0 ; [L930] int retValue_acc ; [L933] retValue_acc = methaneLevelCritical [L934] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] tmp = isMethaneLevelCritical() [L506] COND TRUE \read(tmp) [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] tmp___0 = isPumpRunning() [L510] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product54.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 192 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1137 SDtfs, 1257 SDslu, 1252 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 639 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 12403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...