./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad65d1d3307a121fce5b7d95113e2f3f66b04b5a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-cad4683 [2019-11-16 00:33:03,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:33:03,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:33:03,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:33:03,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:33:03,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:33:03,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:33:03,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:33:03,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:33:03,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:33:03,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:33:03,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:33:03,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:33:03,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:33:03,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:33:03,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:33:03,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:33:03,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:33:03,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:33:03,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:33:03,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:33:03,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:33:03,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:33:03,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:33:03,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:33:03,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:33:03,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:33:03,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:33:03,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:33:03,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:33:03,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:33:03,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:33:03,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:33:03,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:33:03,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:33:03,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:33:03,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:33:03,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:33:03,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:33:03,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:33:03,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:33:03,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:33:03,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:33:03,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:33:03,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:33:03,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:33:03,283 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:33:03,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:33:03,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:33:03,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:33:03,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:33:03,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:33:03,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:33:03,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:33:03,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:33:03,285 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:33:03,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:33:03,285 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:33:03,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:33:03,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:33:03,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:33:03,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:33:03,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:33:03,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:33:03,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:33:03,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:33:03,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:33:03,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:33:03,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:33:03,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:33:03,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_03840a22-ec0a-42d4-a384-de6b3c941a42/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(__VERIFIER_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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2019-11-16 00:33:03,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:33:03,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:33:03,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:33:03,327 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:33:03,328 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:33:03,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-11-16 00:33:03,376 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/data/40dfb4d28/f61848c102bf4bd7bb837faca40433fe/FLAGd7cc2b9bf [2019-11-16 00:33:03,819 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:33:03,820 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-11-16 00:33:03,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/data/40dfb4d28/f61848c102bf4bd7bb837faca40433fe/FLAGd7cc2b9bf [2019-11-16 00:33:03,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/data/40dfb4d28/f61848c102bf4bd7bb837faca40433fe [2019-11-16 00:33:03,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:33:03,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:33:03,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:33:03,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:33:03,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:33:03,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:03" (1/1) ... [2019-11-16 00:33:03,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55007c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:03, skipping insertion in model container [2019-11-16 00:33:03,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:33:03" (1/1) ... [2019-11-16 00:33:03,872 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:33:03,935 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:33:04,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:33:04,362 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:33:04,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:33:04,449 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:33:04,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04 WrapperNode [2019-11-16 00:33:04,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:33:04,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:33:04,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:33:04,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:33:04,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:33:04,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:33:04,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:33:04,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:33:04,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... [2019-11-16 00:33:04,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:33:04,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:33:04,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:33:04,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:33:04,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/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 [2019-11-16 00:33:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-16 00:33:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-16 00:33:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:33:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:33:05,337 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:33:05,337 INFO L284 CfgBuilder]: Removed 162 assume(true) statements. [2019-11-16 00:33:05,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:05 BoogieIcfgContainer [2019-11-16 00:33:05,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:33:05,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:33:05,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:33:05,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:33:05,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:33:03" (1/3) ... [2019-11-16 00:33:05,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cc026a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:05, skipping insertion in model container [2019-11-16 00:33:05,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:33:04" (2/3) ... [2019-11-16 00:33:05,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9cc026a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:33:05, skipping insertion in model container [2019-11-16 00:33:05,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:05" (3/3) ... [2019-11-16 00:33:05,345 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2019-11-16 00:33:05,354 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:33:05,360 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-16 00:33:05,370 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-16 00:33:05,399 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:33:05,399 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:33:05,399 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:33:05,399 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:33:05,400 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:33:05,400 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:33:05,400 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:33:05,400 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:33:05,422 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-16 00:33:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-16 00:33:05,429 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:05,430 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:05,432 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:05,437 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2019-11-16 00:33:05,447 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:05,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844625311] [2019-11-16 00:33:05,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:05,662 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844625311] [2019-11-16 00:33:05,663 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:05,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:33:05,663 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935192227] [2019-11-16 00:33:05,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-16 00:33:05,667 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:05,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-16 00:33:05,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-16 00:33:05,679 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-16 00:33:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:05,704 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2019-11-16 00:33:05,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-16 00:33:05,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-16 00:33:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:05,716 INFO L225 Difference]: With dead ends: 220 [2019-11-16 00:33:05,717 INFO L226 Difference]: Without dead ends: 109 [2019-11-16 00:33:05,720 INFO L600 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 [2019-11-16 00:33:05,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-16 00:33:05,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-11-16 00:33:05,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-16 00:33:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-11-16 00:33:05,760 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2019-11-16 00:33:05,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:05,761 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-11-16 00:33:05,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-16 00:33:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-11-16 00:33:05,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-16 00:33:05,762 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:05,762 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:33:05,763 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:05,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:05,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2019-11-16 00:33:05,763 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:05,764 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473166062] [2019-11-16 00:33:05,764 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,764 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:05,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473166062] [2019-11-16 00:33:05,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:05,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-16 00:33:05,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260625205] [2019-11-16 00:33:05,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:33:05,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:05,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:33:05,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:33:05,879 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 3 states. [2019-11-16 00:33:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:05,890 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2019-11-16 00:33:05,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:33:05,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-16 00:33:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:05,891 INFO L225 Difference]: With dead ends: 109 [2019-11-16 00:33:05,892 INFO L226 Difference]: Without dead ends: 47 [2019-11-16 00:33:05,893 INFO L600 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 [2019-11-16 00:33:05,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-16 00:33:05,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-11-16 00:33:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-11-16 00:33:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-11-16 00:33:05,899 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-11-16 00:33:05,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:05,899 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-11-16 00:33:05,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:33:05,899 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-11-16 00:33:05,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-16 00:33:05,900 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:05,900 INFO L380 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] [2019-11-16 00:33:05,901 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:05,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:05,901 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2019-11-16 00:33:05,901 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:05,901 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023860694] [2019-11-16 00:33:05,901 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,902 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:05,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:06,053 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023860694] [2019-11-16 00:33:06,053 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:06,055 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:33:06,056 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750252547] [2019-11-16 00:33:06,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:06,056 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:06,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:06,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:06,057 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 5 states. [2019-11-16 00:33:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:06,165 INFO L93 Difference]: Finished difference Result 111 states and 164 transitions. [2019-11-16 00:33:06,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:33:06,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-16 00:33:06,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:06,173 INFO L225 Difference]: With dead ends: 111 [2019-11-16 00:33:06,173 INFO L226 Difference]: Without dead ends: 70 [2019-11-16 00:33:06,174 INFO L600 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 [2019-11-16 00:33:06,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-11-16 00:33:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2019-11-16 00:33:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-16 00:33:06,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-11-16 00:33:06,182 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 22 [2019-11-16 00:33:06,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:06,183 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-11-16 00:33:06,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-11-16 00:33:06,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-16 00:33:06,189 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:06,189 INFO L380 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] [2019-11-16 00:33:06,190 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:06,190 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2019-11-16 00:33:06,190 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:06,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335387993] [2019-11-16 00:33:06,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:06,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335387993] [2019-11-16 00:33:06,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:06,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:33:06,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294358685] [2019-11-16 00:33:06,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:33:06,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:06,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:33:06,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:33:06,265 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-11-16 00:33:06,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:06,303 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2019-11-16 00:33:06,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:33:06,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-16 00:33:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:06,305 INFO L225 Difference]: With dead ends: 147 [2019-11-16 00:33:06,305 INFO L226 Difference]: Without dead ends: 87 [2019-11-16 00:33:06,306 INFO L600 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 [2019-11-16 00:33:06,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-16 00:33:06,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2019-11-16 00:33:06,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-16 00:33:06,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2019-11-16 00:33:06,322 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 24 [2019-11-16 00:33:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:06,322 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2019-11-16 00:33:06,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:33:06,323 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2019-11-16 00:33:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-16 00:33:06,324 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:06,324 INFO L380 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] [2019-11-16 00:33:06,324 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:06,324 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2019-11-16 00:33:06,325 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:06,325 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592958702] [2019-11-16 00:33:06,325 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,325 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:06,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:06,406 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592958702] [2019-11-16 00:33:06,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:06,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:33:06,407 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555288473] [2019-11-16 00:33:06,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:06,407 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:06,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:06,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:06,408 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand 5 states. [2019-11-16 00:33:06,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:06,511 INFO L93 Difference]: Finished difference Result 413 states and 601 transitions. [2019-11-16 00:33:06,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-16 00:33:06,512 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-16 00:33:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:06,515 INFO L225 Difference]: With dead ends: 413 [2019-11-16 00:33:06,515 INFO L226 Difference]: Without dead ends: 334 [2019-11-16 00:33:06,516 INFO L600 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 [2019-11-16 00:33:06,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-11-16 00:33:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 156. [2019-11-16 00:33:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-16 00:33:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 220 transitions. [2019-11-16 00:33:06,555 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 220 transitions. Word has length 25 [2019-11-16 00:33:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:06,556 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 220 transitions. [2019-11-16 00:33:06,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 220 transitions. [2019-11-16 00:33:06,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-16 00:33:06,560 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:06,560 INFO L380 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] [2019-11-16 00:33:06,561 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:06,561 INFO L82 PathProgramCache]: Analyzing trace with hash -649570909, now seen corresponding path program 1 times [2019-11-16 00:33:06,562 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:06,562 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339518823] [2019-11-16 00:33:06,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,562 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:06,654 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339518823] [2019-11-16 00:33:06,654 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:06,654 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-16 00:33:06,654 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187817206] [2019-11-16 00:33:06,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:06,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:06,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:06,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:06,656 INFO L87 Difference]: Start difference. First operand 156 states and 220 transitions. Second operand 5 states. [2019-11-16 00:33:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:06,818 INFO L93 Difference]: Finished difference Result 436 states and 619 transitions. [2019-11-16 00:33:06,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-16 00:33:06,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-16 00:33:06,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:06,821 INFO L225 Difference]: With dead ends: 436 [2019-11-16 00:33:06,822 INFO L226 Difference]: Without dead ends: 434 [2019-11-16 00:33:06,823 INFO L600 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 [2019-11-16 00:33:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-11-16 00:33:06,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 156. [2019-11-16 00:33:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-16 00:33:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-11-16 00:33:06,854 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 26 [2019-11-16 00:33:06,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:06,855 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-11-16 00:33:06,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:06,855 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-11-16 00:33:06,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-16 00:33:06,858 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:06,858 INFO L380 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] [2019-11-16 00:33:06,865 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:06,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:06,866 INFO L82 PathProgramCache]: Analyzing trace with hash 108971892, now seen corresponding path program 1 times [2019-11-16 00:33:06,866 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:06,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271606843] [2019-11-16 00:33:06,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,867 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:06,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:06,931 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271606843] [2019-11-16 00:33:06,931 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:06,931 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:33:06,931 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876313359] [2019-11-16 00:33:06,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:33:06,932 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:06,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:33:06,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:33:06,932 INFO L87 Difference]: Start difference. First operand 156 states and 218 transitions. Second operand 5 states. [2019-11-16 00:33:07,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:07,016 INFO L93 Difference]: Finished difference Result 468 states and 648 transitions. [2019-11-16 00:33:07,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-16 00:33:07,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-16 00:33:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:07,019 INFO L225 Difference]: With dead ends: 468 [2019-11-16 00:33:07,019 INFO L226 Difference]: Without dead ends: 318 [2019-11-16 00:33:07,020 INFO L600 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 [2019-11-16 00:33:07,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-11-16 00:33:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 168. [2019-11-16 00:33:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-16 00:33:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 230 transitions. [2019-11-16 00:33:07,047 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 230 transitions. Word has length 31 [2019-11-16 00:33:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:07,049 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 230 transitions. [2019-11-16 00:33:07,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:33:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 230 transitions. [2019-11-16 00:33:07,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-16 00:33:07,052 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:07,052 INFO L380 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] [2019-11-16 00:33:07,053 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:07,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:07,053 INFO L82 PathProgramCache]: Analyzing trace with hash -284055118, now seen corresponding path program 1 times [2019-11-16 00:33:07,053 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:07,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828745462] [2019-11-16 00:33:07,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,054 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:07,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828745462] [2019-11-16 00:33:07,140 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:07,140 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-16 00:33:07,140 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502551347] [2019-11-16 00:33:07,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-16 00:33:07,141 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:07,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-16 00:33:07,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-16 00:33:07,141 INFO L87 Difference]: Start difference. First operand 168 states and 230 transitions. Second operand 6 states. [2019-11-16 00:33:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:07,255 INFO L93 Difference]: Finished difference Result 502 states and 682 transitions. [2019-11-16 00:33:07,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:33:07,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-16 00:33:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:07,258 INFO L225 Difference]: With dead ends: 502 [2019-11-16 00:33:07,258 INFO L226 Difference]: Without dead ends: 340 [2019-11-16 00:33:07,261 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-16 00:33:07,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-11-16 00:33:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 176. [2019-11-16 00:33:07,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-11-16 00:33:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2019-11-16 00:33:07,295 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 31 [2019-11-16 00:33:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:07,295 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2019-11-16 00:33:07,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-16 00:33:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2019-11-16 00:33:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-16 00:33:07,296 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:07,296 INFO L380 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] [2019-11-16 00:33:07,297 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:07,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:07,297 INFO L82 PathProgramCache]: Analyzing trace with hash -25889680, now seen corresponding path program 1 times [2019-11-16 00:33:07,297 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:07,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997929630] [2019-11-16 00:33:07,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,298 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:33:07,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:33:07,339 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997929630] [2019-11-16 00:33:07,339 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:33:07,339 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-16 00:33:07,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853456311] [2019-11-16 00:33:07,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-16 00:33:07,340 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:33:07,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-16 00:33:07,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-16 00:33:07,340 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand 3 states. [2019-11-16 00:33:07,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:33:07,380 INFO L93 Difference]: Finished difference Result 434 states and 586 transitions. [2019-11-16 00:33:07,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-16 00:33:07,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-16 00:33:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:33:07,383 INFO L225 Difference]: With dead ends: 434 [2019-11-16 00:33:07,384 INFO L226 Difference]: Without dead ends: 264 [2019-11-16 00:33:07,384 INFO L600 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 [2019-11-16 00:33:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-11-16 00:33:07,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-11-16 00:33:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-11-16 00:33:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 348 transitions. [2019-11-16 00:33:07,414 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 348 transitions. Word has length 31 [2019-11-16 00:33:07,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:33:07,415 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 348 transitions. [2019-11-16 00:33:07,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-16 00:33:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 348 transitions. [2019-11-16 00:33:07,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-16 00:33:07,416 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:33:07,418 INFO L380 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] [2019-11-16 00:33:07,418 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:33:07,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:33:07,419 INFO L82 PathProgramCache]: Analyzing trace with hash -2138649550, now seen corresponding path program 1 times [2019-11-16 00:33:07,419 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:33:07,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895497125] [2019-11-16 00:33:07,420 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,420 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:33:07,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:33:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:33:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-16 00:33:08,044 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-16 00:33:08,045 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-16 00:33:08,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:33:08 BoogieIcfgContainer [2019-11-16 00:33:08,158 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:33:08,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:33:08,159 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:33:08,159 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:33:08,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:33:05" (3/4) ... [2019-11-16 00:33:08,161 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-16 00:33:08,288 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_03840a22-ec0a-42d4-a384-de6b3c941a42/bin/uautomizer/witness.graphml [2019-11-16 00:33:08,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:33:08,294 INFO L168 Benchmark]: Toolchain (without parser) took 4440.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.8 MB in the beginning and 932.0 MB in the end (delta: 12.8 MB). Peak memory consumption was 153.8 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,295 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:33:08,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,296 INFO L168 Benchmark]: Boogie Preprocessor took 44.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:33:08,298 INFO L168 Benchmark]: RCFGBuilder took 783.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,298 INFO L168 Benchmark]: TraceAbstraction took 2818.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.2 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,299 INFO L168 Benchmark]: Witness Printer took 133.59 ms. Allocated memory is still 1.2 GB. Free memory was 944.2 MB in the beginning and 932.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-16 00:33:08,300 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 596.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 783.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2818.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 944.2 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. * Witness Printer took 133.59 ms. Allocated memory is still 1.2 GB. Free memory was 944.2 MB in the beginning and 932.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; [L428] int retValue_acc ; [L429] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L248] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) [L114] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND TRUE ! pumpRunning [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L942] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) [L142] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L327] int tmp ; [L328] int tmp___0 ; [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L490] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.7s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 829 SDtfs, 1296 SDslu, 1083 SDs, 0 SdLazy, 160 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred 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, 776 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 10236 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...