./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.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_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/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 bc4bd2595a0b7e3cefae13519551d835632d9ce9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-11-20 04:26:50,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:26:50,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:26:50,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:26:50,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:26:50,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:26:50,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:26:50,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:26:50,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:26:50,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:26:50,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:26:50,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:26:50,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:26:50,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:26:50,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:26:50,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:26:50,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:26:50,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:26:50,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:26:50,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:26:50,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:26:50,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:26:50,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:26:50,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:26:50,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:26:50,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:26:50,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:26:50,132 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:26:50,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:26:50,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:26:50,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:26:50,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:26:50,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:26:50,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:26:50,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:26:50,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:26:50,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:26:50,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:26:50,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:26:50,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:26:50,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:26:50,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:26:50,168 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:26:50,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:26:50,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:26:50,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:26:50,180 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:26:50,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:26:50,181 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:26:50,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:26:50,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:26:50,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:26:50,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:26:50,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:26:50,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:26:50,182 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:26:50,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:26:50,183 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:26:50,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:26:50,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:26:50,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:26:50,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:26:50,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:26:50,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:26:50,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:26:50,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:26:50,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:26:50,185 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:26:50,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:26:50,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:26:50,186 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_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/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 -> bc4bd2595a0b7e3cefae13519551d835632d9ce9 [2019-11-20 04:26:50,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:26:50,365 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:26:50,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:26:50,370 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:26:50,371 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:26:50,372 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-11-20 04:26:50,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/data/785e84501/64622365c41f4a15b1f86629b1eb2c97/FLAG028f0d2dd [2019-11-20 04:26:50,981 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:26:50,985 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/sv-benchmarks/c/product-lines/minepump_spec3_product63.cil.c [2019-11-20 04:26:51,007 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/data/785e84501/64622365c41f4a15b1f86629b1eb2c97/FLAG028f0d2dd [2019-11-20 04:26:51,328 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/data/785e84501/64622365c41f4a15b1f86629b1eb2c97 [2019-11-20 04:26:51,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:26:51,332 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:26:51,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:26:51,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:26:51,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:26:51,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:51,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4719adbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51, skipping insertion in model container [2019-11-20 04:26:51,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:51,349 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:26:51,402 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:26:51,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:26:51,769 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:26:51,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:26:51,923 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:26:51,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51 WrapperNode [2019-11-20 04:26:51,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:26:51,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:26:51,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:26:51,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:26:51,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:51,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:26:52,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:26:52,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:26:52,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:26:52,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... [2019-11-20 04:26:52,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:26:52,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:26:52,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:26:52,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:26:52,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/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 [2019-11-20 04:26:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:26:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 04:26:52,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:26:52,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:26:53,624 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:26:53,624 INFO L285 CfgBuilder]: Removed 358 assume(true) statements. [2019-11-20 04:26:53,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:26:53 BoogieIcfgContainer [2019-11-20 04:26:53,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:26:53,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:26:53,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:26:53,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:26:53,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:26:51" (1/3) ... [2019-11-20 04:26:53,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b1bf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:26:53, skipping insertion in model container [2019-11-20 04:26:53,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:26:51" (2/3) ... [2019-11-20 04:26:53,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b1bf28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:26:53, skipping insertion in model container [2019-11-20 04:26:53,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:26:53" (3/3) ... [2019-11-20 04:26:53,633 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product63.cil.c [2019-11-20 04:26:53,643 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:26:53,650 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 04:26:53,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 04:26:53,700 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:26:53,700 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:26:53,701 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:26:53,701 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:26:53,704 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:26:53,705 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:26:53,705 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:26:53,705 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:26:53,742 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-11-20 04:26:53,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 04:26:53,758 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:53,759 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:26:53,759 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:53,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:53,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1810150439, now seen corresponding path program 1 times [2019-11-20 04:26:53,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:53,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070108372] [2019-11-20 04:26:53,776 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:26:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:26:54,077 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070108372] [2019-11-20 04:26:54,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:26:54,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:26:54,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857596489] [2019-11-20 04:26:54,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 04:26:54,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:26:54,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 04:26:54,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 04:26:54,099 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-11-20 04:26:54,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:26:54,153 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-11-20 04:26:54,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 04:26:54,155 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-20 04:26:54,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:26:54,169 INFO L225 Difference]: With dead ends: 460 [2019-11-20 04:26:54,170 INFO L226 Difference]: Without dead ends: 229 [2019-11-20 04:26:54,174 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 [2019-11-20 04:26:54,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-11-20 04:26:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-11-20 04:26:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-11-20 04:26:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-11-20 04:26:54,236 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-11-20 04:26:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:26:54,237 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-11-20 04:26:54,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 04:26:54,237 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-11-20 04:26:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 04:26:54,239 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:54,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:26:54,239 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:54,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1201076285, now seen corresponding path program 1 times [2019-11-20 04:26:54,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:54,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403086999] [2019-11-20 04:26:54,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:26:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:26:54,339 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403086999] [2019-11-20 04:26:54,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:26:54,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:26:54,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431842285] [2019-11-20 04:26:54,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:26:54,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:26:54,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:26:54,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:26:54,342 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2019-11-20 04:26:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:26:54,364 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-11-20 04:26:54,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:26:54,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 04:26:54,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:26:54,367 INFO L225 Difference]: With dead ends: 229 [2019-11-20 04:26:54,367 INFO L226 Difference]: Without dead ends: 87 [2019-11-20 04:26:54,369 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 [2019-11-20 04:26:54,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-11-20 04:26:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-11-20 04:26:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-11-20 04:26:54,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-11-20 04:26:54,383 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-11-20 04:26:54,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:26:54,383 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-11-20 04:26:54,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:26:54,384 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-11-20 04:26:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 04:26:54,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:54,386 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] [2019-11-20 04:26:54,386 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:54,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:54,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1668670364, now seen corresponding path program 1 times [2019-11-20 04:26:54,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:54,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554512358] [2019-11-20 04:26:54,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:26:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:26:54,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554512358] [2019-11-20 04:26:54,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:26:54,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 04:26:54,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149934162] [2019-11-20 04:26:54,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 04:26:54,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:26:54,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 04:26:54,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-20 04:26:54,547 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 6 states. [2019-11-20 04:26:54,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:26:54,732 INFO L93 Difference]: Finished difference Result 274 states and 406 transitions. [2019-11-20 04:26:54,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:26:54,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-20 04:26:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:26:54,737 INFO L225 Difference]: With dead ends: 274 [2019-11-20 04:26:54,737 INFO L226 Difference]: Without dead ends: 193 [2019-11-20 04:26:54,738 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 04:26:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-20 04:26:54,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 108. [2019-11-20 04:26:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-20 04:26:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 159 transitions. [2019-11-20 04:26:54,766 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 159 transitions. Word has length 24 [2019-11-20 04:26:54,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:26:54,766 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 159 transitions. [2019-11-20 04:26:54,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 04:26:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 159 transitions. [2019-11-20 04:26:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 04:26:54,768 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:54,769 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] [2019-11-20 04:26:54,769 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:54,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1791027038, now seen corresponding path program 1 times [2019-11-20 04:26:54,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:54,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166300929] [2019-11-20 04:26:54,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:26:54,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:26:54,880 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166300929] [2019-11-20 04:26:54,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:26:54,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:26:54,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198552654] [2019-11-20 04:26:54,881 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:26:54,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:26:54,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:26:54,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:26:54,882 INFO L87 Difference]: Start difference. First operand 108 states and 159 transitions. Second operand 3 states. [2019-11-20 04:26:54,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:26:54,970 INFO L93 Difference]: Finished difference Result 218 states and 323 transitions. [2019-11-20 04:26:54,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:26:54,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-20 04:26:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:26:54,972 INFO L225 Difference]: With dead ends: 218 [2019-11-20 04:26:54,972 INFO L226 Difference]: Without dead ends: 116 [2019-11-20 04:26:54,974 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 [2019-11-20 04:26:54,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-20 04:26:54,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2019-11-20 04:26:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-11-20 04:26:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2019-11-20 04:26:54,989 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 162 transitions. Word has length 27 [2019-11-20 04:26:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:26:54,990 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 162 transitions. [2019-11-20 04:26:54,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:26:54,990 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 162 transitions. [2019-11-20 04:26:54,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-20 04:26:54,992 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:54,992 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] [2019-11-20 04:26:54,992 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:54,993 INFO L82 PathProgramCache]: Analyzing trace with hash 234819321, now seen corresponding path program 1 times [2019-11-20 04:26:54,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:54,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506025504] [2019-11-20 04:26:54,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:26:55,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:26:55,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506025504] [2019-11-20 04:26:55,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:26:55,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 04:26:55,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924132696] [2019-11-20 04:26:55,088 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 04:26:55,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:26:55,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:26:55,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:26:55,089 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. Second operand 5 states. [2019-11-20 04:26:55,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:26:55,270 INFO L93 Difference]: Finished difference Result 578 states and 838 transitions. [2019-11-20 04:26:55,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:26:55,271 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-11-20 04:26:55,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:26:55,275 INFO L225 Difference]: With dead ends: 578 [2019-11-20 04:26:55,275 INFO L226 Difference]: Without dead ends: 470 [2019-11-20 04:26:55,277 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 [2019-11-20 04:26:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-11-20 04:26:55,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 183. [2019-11-20 04:26:55,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-20 04:26:55,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 255 transitions. [2019-11-20 04:26:55,323 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 255 transitions. Word has length 27 [2019-11-20 04:26:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:26:55,323 INFO L462 AbstractCegarLoop]: Abstraction has 183 states and 255 transitions. [2019-11-20 04:26:55,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 04:26:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 255 transitions. [2019-11-20 04:26:55,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 04:26:55,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:26:55,326 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] [2019-11-20 04:26:55,326 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:26:55,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:26:55,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1465444421, now seen corresponding path program 1 times [2019-11-20 04:26:55,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:26:55,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702218496] [2019-11-20 04:26:55,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:26:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:26:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:26:55,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:26:55,503 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 04:26:55,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:26:55 BoogieIcfgContainer [2019-11-20 04:26:55,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:26:55,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:26:55,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:26:55,593 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:26:55,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:26:53" (3/4) ... [2019-11-20 04:26:55,596 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 04:26:55,679 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_83e2d8ce-38e7-46c4-9be0-36d5e4428edc/bin/uautomizer/witness.graphml [2019-11-20 04:26:55,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:26:55,681 INFO L168 Benchmark]: Toolchain (without parser) took 4348.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 939.4 MB in the beginning and 858.0 MB in the end (delta: 81.4 MB). Peak memory consumption was 230.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,682 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:26:55,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.60 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,684 INFO L168 Benchmark]: Boogie Preprocessor took 78.00 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. [2019-11-20 04:26:55,684 INFO L168 Benchmark]: RCFGBuilder took 1497.09 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: 94.5 MB). Peak memory consumption was 94.5 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,685 INFO L168 Benchmark]: TraceAbstraction took 1966.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 871.4 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,685 INFO L168 Benchmark]: Witness Printer took 86.76 ms. Allocated memory is still 1.2 GB. Free memory was 871.4 MB in the beginning and 858.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:26:55,688 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 590.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 125.60 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.00 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 1497.09 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: 94.5 MB). Peak memory consumption was 94.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1966.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 871.4 MB in the end (delta: 146.8 MB). Peak memory consumption was 146.8 MB. Max. memory is 11.5 GB. * Witness Printer took 86.76 ms. Allocated memory is still 1.2 GB. Free memory was 871.4 MB in the beginning and 858.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 619]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L188] int pumpRunning = 0; [L189] int systemActive = 1; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L827] 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] [L445] int splverifierCounter ; [L446] int tmp ; [L447] int tmp___0 ; [L448] int tmp___1 ; [L449] int tmp___2 ; [L452] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L456] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] tmp = __VERIFIER_nondet_int() [L464] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] COND TRUE waterLevel < 2 [L531] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L472] tmp___0 = __VERIFIER_nondet_int() [L474] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L482] tmp___2 = __VERIFIER_nondet_int() [L484] COND FALSE !(\read(tmp___2)) [L488] tmp___1 = __VERIFIER_nondet_int() [L490] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L439] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L203] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L625] int tmp ; [L626] int tmp___0 ; [L627] int tmp___1 ; [L551] int retValue_acc ; [L554] retValue_acc = methaneLevelCritical [L555] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L631] tmp = isMethaneLevelCritical() [L633] COND FALSE !(\read(tmp)) [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] tmp___0 = getWaterLevel() [L639] COND TRUE tmp___0 == 2 [L346] int retValue_acc ; [L349] retValue_acc = pumpRunning [L350] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L641] tmp___1 = isPumpRunning() [L643] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L619] __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, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 867 SDtfs, 1048 SDslu, 972 SDs, 0 SdLazy, 89 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=0, 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, 374 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5641 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...