./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-6b5699a [2019-11-25 08:46:16,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:16,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:16,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:16,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:16,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:16,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:16,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:16,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:16,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:16,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:16,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:16,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:16,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:16,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:16,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:16,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:16,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:16,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:16,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:16,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:16,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:16,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:16,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:16,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:16,322 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:16,322 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:16,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:16,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:16,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:16,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:16,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:16,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:16,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:16,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:16,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:16,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:16,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:16,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:16,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:16,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:16,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:46:16,361 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:16,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:16,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:16,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:16,363 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:16,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:16,364 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:16,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:16,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:16,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:16,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:46:16,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:46:16,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:46:16,367 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:16,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:16,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:16,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:46:16,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:16,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:16,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:46:16,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:46:16,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:46:16,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:16,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:46:16,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:46:16,370 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:16,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:46:16,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:46:16,371 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_8c147311-1bdd-417e-b322-8a80a91e7313/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2019-11-25 08:46:16,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:16,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:16,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:16,549 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:16,550 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:16,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-11-25 08:46:16,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/data/92f988cb5/9bd790370f5749729c5c491906794692/FLAG92baecb89 [2019-11-25 08:46:17,172 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:17,178 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2019-11-25 08:46:17,200 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/data/92f988cb5/9bd790370f5749729c5c491906794692/FLAG92baecb89 [2019-11-25 08:46:17,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/data/92f988cb5/9bd790370f5749729c5c491906794692 [2019-11-25 08:46:17,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:17,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:17,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:17,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:17,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:17,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:17" (1/1) ... [2019-11-25 08:46:17,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16042ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:17, skipping insertion in model container [2019-11-25 08:46:17,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:17" (1/1) ... [2019-11-25 08:46:17,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:17,526 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:17,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:17,981 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:18,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:18,129 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:18,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18 WrapperNode [2019-11-25 08:46:18,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:18,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:18,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:18,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:18,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:18,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:18,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:18,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:18,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... [2019-11-25 08:46:18,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:18,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:18,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:18,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:18,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/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 [2019-11-25 08:46:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:46:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:46:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:19,653 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:19,653 INFO L284 CfgBuilder]: Removed 282 assume(true) statements. [2019-11-25 08:46:19,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:19 BoogieIcfgContainer [2019-11-25 08:46:19,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:19,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:46:19,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:46:19,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:46:19,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:46:17" (1/3) ... [2019-11-25 08:46:19,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fe2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:19, skipping insertion in model container [2019-11-25 08:46:19,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:18" (2/3) ... [2019-11-25 08:46:19,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392fe2e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:46:19, skipping insertion in model container [2019-11-25 08:46:19,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:19" (3/3) ... [2019-11-25 08:46:19,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2019-11-25 08:46:19,674 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:46:19,682 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-25 08:46:19,694 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-25 08:46:19,725 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:46:19,725 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:46:19,725 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:46:19,725 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:19,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:19,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:46:19,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:19,728 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:46:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2019-11-25 08:46:19,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:46:19,759 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:19,760 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:19,761 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:19,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1937289636, now seen corresponding path program 1 times [2019-11-25 08:46:19,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:19,778 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476934928] [2019-11-25 08:46:19,778 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:20,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476934928] [2019-11-25 08:46:20,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:20,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:46:20,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645262490] [2019-11-25 08:46:20,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:46:20,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:46:20,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:46:20,047 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2019-11-25 08:46:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:20,093 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2019-11-25 08:46:20,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:46:20,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-11-25 08:46:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:20,109 INFO L225 Difference]: With dead ends: 376 [2019-11-25 08:46:20,109 INFO L226 Difference]: Without dead ends: 187 [2019-11-25 08:46:20,113 INFO L630 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 [2019-11-25 08:46:20,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-11-25 08:46:20,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2019-11-25 08:46:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-11-25 08:46:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2019-11-25 08:46:20,188 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2019-11-25 08:46:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:20,189 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2019-11-25 08:46:20,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:46:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2019-11-25 08:46:20,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:46:20,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:20,191 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:20,191 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:20,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:20,192 INFO L82 PathProgramCache]: Analyzing trace with hash 890532739, now seen corresponding path program 1 times [2019-11-25 08:46:20,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:20,192 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550591409] [2019-11-25 08:46:20,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:20,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:20,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550591409] [2019-11-25 08:46:20,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:20,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:46:20,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772772037] [2019-11-25 08:46:20,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:46:20,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:20,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:20,330 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2019-11-25 08:46:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:20,354 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2019-11-25 08:46:20,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:20,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-25 08:46:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:20,359 INFO L225 Difference]: With dead ends: 187 [2019-11-25 08:46:20,359 INFO L226 Difference]: Without dead ends: 73 [2019-11-25 08:46:20,360 INFO L630 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 [2019-11-25 08:46:20,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-25 08:46:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-11-25 08:46:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-25 08:46:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2019-11-25 08:46:20,369 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2019-11-25 08:46:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:20,370 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2019-11-25 08:46:20,370 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:46:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2019-11-25 08:46:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-25 08:46:20,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:20,371 INFO L410 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] [2019-11-25 08:46:20,372 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:20,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2019-11-25 08:46:20,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:20,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277353191] [2019-11-25 08:46:20,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:20,494 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277353191] [2019-11-25 08:46:20,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:20,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:46:20,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546577996] [2019-11-25 08:46:20,495 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:46:20,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:20,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:20,496 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 3 states. [2019-11-25 08:46:20,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:20,539 INFO L93 Difference]: Finished difference Result 207 states and 312 transitions. [2019-11-25 08:46:20,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:20,539 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-11-25 08:46:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:20,542 INFO L225 Difference]: With dead ends: 207 [2019-11-25 08:46:20,542 INFO L226 Difference]: Without dead ends: 140 [2019-11-25 08:46:20,543 INFO L630 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 [2019-11-25 08:46:20,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-25 08:46:20,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2019-11-25 08:46:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-11-25 08:46:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 205 transitions. [2019-11-25 08:46:20,559 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 205 transitions. Word has length 22 [2019-11-25 08:46:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:20,560 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 205 transitions. [2019-11-25 08:46:20,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:46:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 205 transitions. [2019-11-25 08:46:20,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:46:20,562 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:20,562 INFO L410 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] [2019-11-25 08:46:20,563 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:20,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:20,563 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2019-11-25 08:46:20,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:20,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70138967] [2019-11-25 08:46:20,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:20,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:20,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70138967] [2019-11-25 08:46:20,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:20,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:46:20,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525801226] [2019-11-25 08:46:20,670 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:46:20,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:20,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:20,671 INFO L87 Difference]: Start difference. First operand 136 states and 205 transitions. Second operand 3 states. [2019-11-25 08:46:20,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:20,739 INFO L93 Difference]: Finished difference Result 283 states and 430 transitions. [2019-11-25 08:46:20,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:20,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-11-25 08:46:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:20,742 INFO L225 Difference]: With dead ends: 283 [2019-11-25 08:46:20,742 INFO L226 Difference]: Without dead ends: 153 [2019-11-25 08:46:20,744 INFO L630 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 [2019-11-25 08:46:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-25 08:46:20,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2019-11-25 08:46:20,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-25 08:46:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 219 transitions. [2019-11-25 08:46:20,769 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 219 transitions. Word has length 25 [2019-11-25 08:46:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:20,770 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 219 transitions. [2019-11-25 08:46:20,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:46:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 219 transitions. [2019-11-25 08:46:20,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-25 08:46:20,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:20,777 INFO L410 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] [2019-11-25 08:46:20,777 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:20,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:20,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2019-11-25 08:46:20,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:20,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704870100] [2019-11-25 08:46:20,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:20,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704870100] [2019-11-25 08:46:20,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:20,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:46:20,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905594028] [2019-11-25 08:46:20,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:20,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:20,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:20,937 INFO L87 Difference]: Start difference. First operand 151 states and 219 transitions. Second operand 5 states. [2019-11-25 08:46:21,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:21,127 INFO L93 Difference]: Finished difference Result 763 states and 1120 transitions. [2019-11-25 08:46:21,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:46:21,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-25 08:46:21,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:21,133 INFO L225 Difference]: With dead ends: 763 [2019-11-25 08:46:21,135 INFO L226 Difference]: Without dead ends: 618 [2019-11-25 08:46:21,139 INFO L630 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 [2019-11-25 08:46:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-11-25 08:46:21,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 286. [2019-11-25 08:46:21,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2019-11-25 08:46:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2019-11-25 08:46:21,188 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 25 [2019-11-25 08:46:21,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:21,189 INFO L462 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2019-11-25 08:46:21,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:21,189 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2019-11-25 08:46:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:46:21,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:21,193 INFO L410 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] [2019-11-25 08:46:21,193 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:21,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:21,194 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2019-11-25 08:46:21,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:21,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482598013] [2019-11-25 08:46:21,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:21,327 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482598013] [2019-11-25 08:46:21,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:21,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:46:21,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972496239] [2019-11-25 08:46:21,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:21,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:21,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:21,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:21,330 INFO L87 Difference]: Start difference. First operand 286 states and 411 transitions. Second operand 5 states. [2019-11-25 08:46:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:21,571 INFO L93 Difference]: Finished difference Result 832 states and 1198 transitions. [2019-11-25 08:46:21,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:46:21,572 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-11-25 08:46:21,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:21,579 INFO L225 Difference]: With dead ends: 832 [2019-11-25 08:46:21,579 INFO L226 Difference]: Without dead ends: 830 [2019-11-25 08:46:21,581 INFO L630 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 [2019-11-25 08:46:21,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2019-11-25 08:46:21,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 286. [2019-11-25 08:46:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2019-11-25 08:46:21,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 409 transitions. [2019-11-25 08:46:21,637 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 409 transitions. Word has length 26 [2019-11-25 08:46:21,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:21,637 INFO L462 AbstractCegarLoop]: Abstraction has 286 states and 409 transitions. [2019-11-25 08:46:21,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 409 transitions. [2019-11-25 08:46:21,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:46:21,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:21,639 INFO L410 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] [2019-11-25 08:46:21,640 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:21,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2019-11-25 08:46:21,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:21,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370181287] [2019-11-25 08:46:21,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:21,726 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370181287] [2019-11-25 08:46:21,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:21,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:46:21,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355278577] [2019-11-25 08:46:21,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:21,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:21,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:21,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:21,728 INFO L87 Difference]: Start difference. First operand 286 states and 409 transitions. Second operand 5 states. [2019-11-25 08:46:21,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:21,858 INFO L93 Difference]: Finished difference Result 766 states and 1076 transitions. [2019-11-25 08:46:21,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:46:21,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-25 08:46:21,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:21,862 INFO L225 Difference]: With dead ends: 766 [2019-11-25 08:46:21,863 INFO L226 Difference]: Without dead ends: 486 [2019-11-25 08:46:21,864 INFO L630 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 [2019-11-25 08:46:21,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2019-11-25 08:46:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 322. [2019-11-25 08:46:21,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2019-11-25 08:46:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 445 transitions. [2019-11-25 08:46:21,891 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 445 transitions. Word has length 32 [2019-11-25 08:46:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:21,891 INFO L462 AbstractCegarLoop]: Abstraction has 322 states and 445 transitions. [2019-11-25 08:46:21,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 445 transitions. [2019-11-25 08:46:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:46:21,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:21,894 INFO L410 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] [2019-11-25 08:46:21,894 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:21,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:21,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2019-11-25 08:46:21,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:21,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86506315] [2019-11-25 08:46:21,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:21,968 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86506315] [2019-11-25 08:46:21,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:21,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:46:21,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023045390] [2019-11-25 08:46:21,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:46:21,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:21,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:46:21,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:46:21,970 INFO L87 Difference]: Start difference. First operand 322 states and 445 transitions. Second operand 5 states. [2019-11-25 08:46:22,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:22,176 INFO L93 Difference]: Finished difference Result 882 states and 1193 transitions. [2019-11-25 08:46:22,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:46:22,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-25 08:46:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:22,181 INFO L225 Difference]: With dead ends: 882 [2019-11-25 08:46:22,181 INFO L226 Difference]: Without dead ends: 566 [2019-11-25 08:46:22,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:46:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-11-25 08:46:22,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 346. [2019-11-25 08:46:22,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2019-11-25 08:46:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 469 transitions. [2019-11-25 08:46:22,211 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 469 transitions. Word has length 32 [2019-11-25 08:46:22,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:22,211 INFO L462 AbstractCegarLoop]: Abstraction has 346 states and 469 transitions. [2019-11-25 08:46:22,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:46:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 469 transitions. [2019-11-25 08:46:22,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-25 08:46:22,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:22,212 INFO L410 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] [2019-11-25 08:46:22,213 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:22,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:22,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2019-11-25 08:46:22,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:22,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906431934] [2019-11-25 08:46:22,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:22,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:22,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906431934] [2019-11-25 08:46:22,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:22,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:46:22,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747392446] [2019-11-25 08:46:22,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:46:22,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:22,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:22,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:22,257 INFO L87 Difference]: Start difference. First operand 346 states and 469 transitions. Second operand 3 states. [2019-11-25 08:46:22,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:22,318 INFO L93 Difference]: Finished difference Result 794 states and 1070 transitions. [2019-11-25 08:46:22,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:22,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-25 08:46:22,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:46:22,322 INFO L225 Difference]: With dead ends: 794 [2019-11-25 08:46:22,322 INFO L226 Difference]: Without dead ends: 454 [2019-11-25 08:46:22,323 INFO L630 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 [2019-11-25 08:46:22,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-25 08:46:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-11-25 08:46:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-25 08:46:22,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 599 transitions. [2019-11-25 08:46:22,363 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 599 transitions. Word has length 32 [2019-11-25 08:46:22,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:46:22,363 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 599 transitions. [2019-11-25 08:46:22,364 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:46:22,364 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 599 transitions. [2019-11-25 08:46:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-25 08:46:22,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:46:22,365 INFO L410 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] [2019-11-25 08:46:22,365 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:46:22,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:22,366 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2019-11-25 08:46:22,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:22,366 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62138514] [2019-11-25 08:46:22,366 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:22,576 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:22,576 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:46:22,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:46:22 BoogieIcfgContainer [2019-11-25 08:46:22,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:46:22,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:22,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:22,706 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:22,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:19" (3/4) ... [2019-11-25 08:46:22,708 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:46:22,842 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8c147311-1bdd-417e-b322-8a80a91e7313/bin/uautomizer/witness.graphml [2019-11-25 08:46:22,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:22,847 INFO L168 Benchmark]: Toolchain (without parser) took 5408.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 942.0 MB in the beginning and 962.1 MB in the end (delta: -20.1 MB). Peak memory consumption was 129.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,849 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:22,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.24 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,851 INFO L168 Benchmark]: Boogie Preprocessor took 65.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,851 INFO L168 Benchmark]: RCFGBuilder took 1332.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.1 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,852 INFO L168 Benchmark]: TraceAbstraction took 3049.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 979.5 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,852 INFO L168 Benchmark]: Witness Printer took 137.68 ms. Allocated memory is still 1.2 GB. Free memory was 979.5 MB in the beginning and 962.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:22,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 693.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 124.24 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.91 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: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1332.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 83.1 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3049.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 979.5 MB in the end (delta: 55.3 MB). Peak memory consumption was 55.3 MB. Max. memory is 11.5 GB. * Witness Printer took 137.68 ms. Allocated memory is still 1.2 GB. Free memory was 979.5 MB in the beginning and 962.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] int retValue_acc ; [L885] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L732] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) [L579] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) [L553] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) [L527] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L988] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) [L607] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; [L778] int tmp___0 ; [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __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, 191 locations, 3 error locations. Result: UNSAFE, OverallTime: 2.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1184 SDtfs, 1469 SDslu, 1535 SDs, 0 SdLazy, 215 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=454occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1266 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 10538 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...