./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/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 6b0dd49774129de8b6944c8beb9911dd98f5e936 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 23:57:44,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:57:44,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:57:44,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:57:44,363 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:57:44,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:57:44,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:57:44,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:57:44,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:57:44,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:57:44,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:57:44,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:57:44,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:57:44,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:57:44,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:57:44,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:57:44,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:57:44,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:57:44,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:57:44,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:57:44,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:57:44,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:57:44,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:57:44,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:57:44,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:57:44,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:57:44,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:57:44,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:57:44,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:57:44,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:57:44,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:57:44,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:57:44,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:57:44,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:57:44,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:57:44,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:57:44,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:57:44,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:57:44,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:57:44,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:57:44,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:57:44,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 23:57:44,452 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:57:44,452 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:57:44,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:57:44,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:57:44,453 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:57:44,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:57:44,454 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 23:57:44,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:57:44,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 23:57:44,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:57:44,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 23:57:44,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 23:57:44,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 23:57:44,455 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 23:57:44,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:57:44,456 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:57:44,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 23:57:44,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:57:44,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:57:44,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 23:57:44,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 23:57:44,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 23:57:44,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:57:44,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 23:57:44,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 23:57:44,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:57:44,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 23:57:44,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 23:57:44,458 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_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-11-19 23:57:44,645 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:57:44,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:57:44,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:57:44,674 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:57:44,674 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:57:44,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-19 23:57:44,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/data/e4c13a863/66797730fb574616b326914e92575e39/FLAGf3cf0eb2d [2019-11-19 23:57:45,159 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:57:45,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/sv-benchmarks/c/product-lines/minepump_spec3_product40.cil.c [2019-11-19 23:57:45,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/data/e4c13a863/66797730fb574616b326914e92575e39/FLAGf3cf0eb2d [2019-11-19 23:57:45,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/data/e4c13a863/66797730fb574616b326914e92575e39 [2019-11-19 23:57:45,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:57:45,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:57:45,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:57:45,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:57:45,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:57:45,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:57:45" (1/1) ... [2019-11-19 23:57:45,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0d266d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:45, skipping insertion in model container [2019-11-19 23:57:45,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:57:45" (1/1) ... [2019-11-19 23:57:45,562 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:57:45,629 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:57:46,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:57:46,126 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:57:46,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:57:46,260 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:57:46,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46 WrapperNode [2019-11-19 23:57:46,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:57:46,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:57:46,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:57:46,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:57:46,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,343 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:57:46,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:57:46,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:57:46,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:57:46,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... [2019-11-19 23:57:46,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:57:46,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:57:46,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:57:46,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:57:46,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/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 [2019-11-19 23:57:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 23:57:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 23:57:46,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:57:46,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:57:47,535 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:57:47,535 INFO L285 CfgBuilder]: Removed 168 assume(true) statements. [2019-11-19 23:57:47,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:57:47 BoogieIcfgContainer [2019-11-19 23:57:47,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:57:47,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 23:57:47,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 23:57:47,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 23:57:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:57:45" (1/3) ... [2019-11-19 23:57:47,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3a68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:57:47, skipping insertion in model container [2019-11-19 23:57:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:57:46" (2/3) ... [2019-11-19 23:57:47,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3a68ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:57:47, skipping insertion in model container [2019-11-19 23:57:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:57:47" (3/3) ... [2019-11-19 23:57:47,547 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2019-11-19 23:57:47,558 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 23:57:47,566 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-19 23:57:47,579 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-19 23:57:47,615 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 23:57:47,615 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 23:57:47,615 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 23:57:47,616 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:57:47,617 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:57:47,618 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 23:57:47,618 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:57:47,618 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 23:57:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-11-19 23:57:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-19 23:57:47,657 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:47,658 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:57:47,659 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:47,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:47,666 INFO L82 PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times [2019-11-19 23:57:47,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:47,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833154515] [2019-11-19 23:57:47,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:47,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833154515] [2019-11-19 23:57:47,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:57:47,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:57:47,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220852594] [2019-11-19 23:57:48,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 23:57:48,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:57:48,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 23:57:48,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 23:57:48,016 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-11-19 23:57:48,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:57:48,060 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-11-19 23:57:48,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 23:57:48,061 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-19 23:57:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:57:48,071 INFO L225 Difference]: With dead ends: 232 [2019-11-19 23:57:48,072 INFO L226 Difference]: Without dead ends: 115 [2019-11-19 23:57:48,075 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 [2019-11-19 23:57:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-19 23:57:48,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-11-19 23:57:48,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-11-19 23:57:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-11-19 23:57:48,125 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-11-19 23:57:48,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:57:48,126 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-11-19 23:57:48,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 23:57:48,126 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-11-19 23:57:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-19 23:57:48,127 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:48,128 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 23:57:48,128 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:48,128 INFO L82 PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times [2019-11-19 23:57:48,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:48,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340041769] [2019-11-19 23:57:48,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:48,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:48,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340041769] [2019-11-19 23:57:48,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:57:48,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 23:57:48,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964359575] [2019-11-19 23:57:48,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:57:48,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:57:48,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:57:48,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:57:48,216 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-11-19 23:57:48,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:57:48,241 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-11-19 23:57:48,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:57:48,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-19 23:57:48,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:57:48,245 INFO L225 Difference]: With dead ends: 115 [2019-11-19 23:57:48,246 INFO L226 Difference]: Without dead ends: 49 [2019-11-19 23:57:48,247 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 [2019-11-19 23:57:48,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-19 23:57:48,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-11-19 23:57:48,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-11-19 23:57:48,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-11-19 23:57:48,254 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-11-19 23:57:48,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:57:48,254 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-11-19 23:57:48,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:57:48,255 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-11-19 23:57:48,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-19 23:57:48,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:48,256 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] [2019-11-19 23:57:48,260 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:48,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:48,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times [2019-11-19 23:57:48,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:48,261 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838004818] [2019-11-19 23:57:48,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:48,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838004818] [2019-11-19 23:57:48,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:57:48,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 23:57:48,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742706948] [2019-11-19 23:57:48,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:57:48,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:57:48,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:57:48,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:57:48,421 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 5 states. [2019-11-19 23:57:48,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:57:48,521 INFO L93 Difference]: Finished difference Result 117 states and 173 transitions. [2019-11-19 23:57:48,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 23:57:48,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-19 23:57:48,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:57:48,530 INFO L225 Difference]: With dead ends: 117 [2019-11-19 23:57:48,530 INFO L226 Difference]: Without dead ends: 74 [2019-11-19 23:57:48,531 INFO L630 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 [2019-11-19 23:57:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-11-19 23:57:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2019-11-19 23:57:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-11-19 23:57:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2019-11-19 23:57:48,542 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2019-11-19 23:57:48,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:57:48,542 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2019-11-19 23:57:48,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:57:48,543 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-11-19 23:57:48,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-19 23:57:48,544 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:48,544 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] [2019-11-19 23:57:48,544 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:48,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:48,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times [2019-11-19 23:57:48,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:48,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999763823] [2019-11-19 23:57:48,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:48,593 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999763823] [2019-11-19 23:57:48,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:57:48,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 23:57:48,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335311527] [2019-11-19 23:57:48,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-19 23:57:48,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:57:48,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:57:48,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:57:48,595 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2019-11-19 23:57:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:57:48,633 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2019-11-19 23:57:48,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:57:48,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-19 23:57:48,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:57:48,635 INFO L225 Difference]: With dead ends: 157 [2019-11-19 23:57:48,636 INFO L226 Difference]: Without dead ends: 93 [2019-11-19 23:57:48,636 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 [2019-11-19 23:57:48,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-19 23:57:48,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-11-19 23:57:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-19 23:57:48,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2019-11-19 23:57:48,655 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2019-11-19 23:57:48,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:57:48,655 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2019-11-19 23:57:48,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-19 23:57:48,655 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2019-11-19 23:57:48,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-19 23:57:48,656 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:48,656 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] [2019-11-19 23:57:48,657 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:48,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:48,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times [2019-11-19 23:57:48,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:48,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268070019] [2019-11-19 23:57:48,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:57:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:57:48,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268070019] [2019-11-19 23:57:48,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:57:48,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 23:57:48,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369984498] [2019-11-19 23:57:48,737 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 23:57:48,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:57:48,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 23:57:48,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 23:57:48,737 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 5 states. [2019-11-19 23:57:48,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:57:48,892 INFO L93 Difference]: Finished difference Result 474 states and 695 transitions. [2019-11-19 23:57:48,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 23:57:48,893 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-19 23:57:48,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 23:57:48,897 INFO L225 Difference]: With dead ends: 474 [2019-11-19 23:57:48,897 INFO L226 Difference]: Without dead ends: 389 [2019-11-19 23:57:48,898 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-19 23:57:48,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-11-19 23:57:48,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156. [2019-11-19 23:57:48,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-19 23:57:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-11-19 23:57:48,954 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27 [2019-11-19 23:57:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 23:57:48,955 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-11-19 23:57:48,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 23:57:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-11-19 23:57:48,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-19 23:57:48,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 23:57:48,957 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] [2019-11-19 23:57:48,957 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 23:57:48,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:57:48,958 INFO L82 PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times [2019-11-19 23:57:48,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:57:48,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866602931] [2019-11-19 23:57:48,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:57:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:57:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:57:49,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:57:49,187 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 23:57:49,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 11:57:49 BoogieIcfgContainer [2019-11-19 23:57:49,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 23:57:49,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:57:49,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:57:49,267 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:57:49,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:57:47" (3/4) ... [2019-11-19 23:57:49,270 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-19 23:57:49,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c168f6b4-5262-4c35-9f4e-ffec8c57ced4/bin/uautomizer/witness.graphml [2019-11-19 23:57:49,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:57:49,352 INFO L168 Benchmark]: Toolchain (without parser) took 3809.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 902.8 MB in the end (delta: 40.6 MB). Peak memory consumption was 176.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,352 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:57:49,353 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.91 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,353 INFO L168 Benchmark]: Boogie Preprocessor took 80.29 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. [2019-11-19 23:57:49,354 INFO L168 Benchmark]: RCFGBuilder took 1113.12 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,354 INFO L168 Benchmark]: TraceAbstraction took 1728.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 913.5 MB in the end (delta: 134.3 MB). Peak memory consumption was 134.3 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,355 INFO L168 Benchmark]: Witness Printer took 82.66 ms. Allocated memory is still 1.2 GB. Free memory was 913.5 MB in the beginning and 902.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-19 23:57:49,357 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 719.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.91 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.29 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 1113.12 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: 65.4 MB). Peak memory consumption was 65.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1728.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 913.5 MB in the end (delta: 134.3 MB). Peak memory consumption was 134.3 MB. Max. memory is 11.5 GB. * Witness Printer took 82.66 ms. Allocated memory is still 1.2 GB. Free memory was 913.5 MB in the beginning and 902.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 493 SDtfs, 652 SDslu, 357 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 239 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...