./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/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 1610387a50b580a3de8e20f991e711af2b541458 ................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-12-07 16:48:09,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:48:09,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:48:09,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:48:09,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:48:09,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:48:09,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:48:09,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:48:09,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:48:09,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:48:09,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:48:09,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:48:09,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:48:09,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:48:09,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:48:09,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:48:09,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:48:09,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:48:09,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:48:09,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:48:09,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:48:09,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:48:09,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:48:09,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:48:09,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:48:09,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:48:09,932 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:48:09,933 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:48:09,933 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:48:09,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:48:09,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:48:09,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:48:09,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:48:09,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:48:09,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:48:09,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:48:09,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:48:09,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:48:09,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:48:09,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:48:09,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:48:09,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:48:09,947 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:48:09,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:48:09,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:48:09,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:48:09,948 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:48:09,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:48:09,948 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:48:09,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:48:09,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:48:09,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:48:09,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:48:09,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:48:09,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:48:09,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:48:09,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:48:09,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:48:09,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:48:09,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:48:09,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:48:09,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:48:09,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:48:09,951 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_b4a47672-2c07-4a67-8b25-ca4d413741b7/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 -> 1610387a50b580a3de8e20f991e711af2b541458 [2019-12-07 16:48:10,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:48:10,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:48:10,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:48:10,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:48:10,065 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:48:10,066 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 16:48:10,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/data/430df0d04/4006f964516040dfadbc9f380b4b86ea/FLAG05da111fc [2019-12-07 16:48:10,578 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:48:10,578 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/sv-benchmarks/c/product-lines/minepump_spec3_product27.cil.c [2019-12-07 16:48:10,587 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/data/430df0d04/4006f964516040dfadbc9f380b4b86ea/FLAG05da111fc [2019-12-07 16:48:10,597 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/data/430df0d04/4006f964516040dfadbc9f380b4b86ea [2019-12-07 16:48:10,599 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:48:10,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:48:10,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:48:10,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:48:10,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:48:10,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10, skipping insertion in model container [2019-12-07 16:48:10,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:48:10,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:48:10,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:48:10,863 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:48:10,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:48:10,930 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:48:10,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10 WrapperNode [2019-12-07 16:48:10,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:48:10,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:48:10,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:48:10,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:48:10,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,949 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:48:10,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:48:10,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:48:10,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:48:10,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:10,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... [2019-12-07 16:48:11,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:48:11,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:48:11,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:48:11,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:48:11,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/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 [2019-12-07 16:48:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:48:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 16:48:11,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:48:11,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:48:11,408 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:48:11,409 INFO L287 CfgBuilder]: Removed 106 assume(true) statements. [2019-12-07 16:48:11,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:11 BoogieIcfgContainer [2019-12-07 16:48:11,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:48:11,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:48:11,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:48:11,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:48:11,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:48:10" (1/3) ... [2019-12-07 16:48:11,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719fe031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:48:11, skipping insertion in model container [2019-12-07 16:48:11,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:10" (2/3) ... [2019-12-07 16:48:11,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719fe031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:48:11, skipping insertion in model container [2019-12-07 16:48:11,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:11" (3/3) ... [2019-12-07 16:48:11,416 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product27.cil.c [2019-12-07 16:48:11,423 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:48:11,428 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 16:48:11,436 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 16:48:11,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:48:11,453 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:48:11,453 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:48:11,453 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:48:11,454 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:48:11,454 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:48:11,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:48:11,454 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:48:11,467 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2019-12-07 16:48:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:48:11,472 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:11,473 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:11,473 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:48:11,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:11,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1047706522, now seen corresponding path program 1 times [2019-12-07 16:48:11,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:48:11,483 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539360384] [2019-12-07 16:48:11,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:11,660 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539360384] [2019-12-07 16:48:11,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:11,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:11,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202317201] [2019-12-07 16:48:11,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:48:11,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:48:11,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:48:11,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:48:11,674 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2019-12-07 16:48:11,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:11,692 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2019-12-07 16:48:11,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:48:11,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 16:48:11,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:11,700 INFO L225 Difference]: With dead ends: 160 [2019-12-07 16:48:11,700 INFO L226 Difference]: Without dead ends: 79 [2019-12-07 16:48:11,703 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 [2019-12-07 16:48:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-12-07 16:48:11,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-12-07 16:48:11,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-12-07 16:48:11,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2019-12-07 16:48:11,730 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2019-12-07 16:48:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:11,730 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2019-12-07 16:48:11,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:48:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-12-07 16:48:11,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 16:48:11,731 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:11,731 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:11,732 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:48:11,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:11,732 INFO L82 PathProgramCache]: Analyzing trace with hash 136675769, now seen corresponding path program 1 times [2019-12-07 16:48:11,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:48:11,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746001026] [2019-12-07 16:48:11,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:11,790 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746001026] [2019-12-07 16:48:11,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:11,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:48:11,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724986101] [2019-12-07 16:48:11,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:48:11,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:48:11,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:48:11,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:48:11,792 INFO L87 Difference]: Start difference. First operand 79 states and 111 transitions. Second operand 3 states. [2019-12-07 16:48:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:11,801 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2019-12-07 16:48:11,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:48:11,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 16:48:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:11,803 INFO L225 Difference]: With dead ends: 79 [2019-12-07 16:48:11,803 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 16:48:11,804 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 [2019-12-07 16:48:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 16:48:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 16:48:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 16:48:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2019-12-07 16:48:11,809 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2019-12-07 16:48:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:11,809 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2019-12-07 16:48:11,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:48:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2019-12-07 16:48:11,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 16:48:11,810 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:11,810 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] [2019-12-07 16:48:11,811 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:48:11,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:11,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1444562447, now seen corresponding path program 1 times [2019-12-07 16:48:11,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:48:11,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161710351] [2019-12-07 16:48:11,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:11,877 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161710351] [2019-12-07 16:48:11,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:11,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:48:11,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949892842] [2019-12-07 16:48:11,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:48:11,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:48:11,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:48:11,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:48:11,878 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 6 states. [2019-12-07 16:48:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:11,958 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2019-12-07 16:48:11,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:48:11,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-12-07 16:48:11,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:11,959 INFO L225 Difference]: With dead ends: 124 [2019-12-07 16:48:11,959 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 16:48:11,960 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 [2019-12-07 16:48:11,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 16:48:11,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-12-07 16:48:11,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 16:48:11,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2019-12-07 16:48:11,967 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2019-12-07 16:48:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:11,967 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2019-12-07 16:48:11,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:48:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2019-12-07 16:48:11,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 16:48:11,968 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:11,968 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:11,969 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:48:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:11,969 INFO L82 PathProgramCache]: Analyzing trace with hash -685298349, now seen corresponding path program 1 times [2019-12-07 16:48:11,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:48:11,969 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730933644] [2019-12-07 16:48:11,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:12,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:12,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730933644] [2019-12-07 16:48:12,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:12,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:48:12,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346700849] [2019-12-07 16:48:12,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:48:12,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:48:12,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:48:12,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:48:12,015 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand 5 states. [2019-12-07 16:48:12,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:12,092 INFO L93 Difference]: Finished difference Result 306 states and 467 transitions. [2019-12-07 16:48:12,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:48:12,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 16:48:12,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:12,095 INFO L225 Difference]: With dead ends: 306 [2019-12-07 16:48:12,095 INFO L226 Difference]: Without dead ends: 254 [2019-12-07 16:48:12,096 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 [2019-12-07 16:48:12,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-07 16:48:12,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 104. [2019-12-07 16:48:12,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-12-07 16:48:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 149 transitions. [2019-12-07 16:48:12,113 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 149 transitions. Word has length 25 [2019-12-07 16:48:12,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:12,113 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 149 transitions. [2019-12-07 16:48:12,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:48:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 149 transitions. [2019-12-07 16:48:12,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 16:48:12,115 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:12,115 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] [2019-12-07 16:48:12,115 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:48:12,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:12,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1650359957, now seen corresponding path program 1 times [2019-12-07 16:48:12,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:48:12,116 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789206010] [2019-12-07 16:48:12,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:48:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:48:12,251 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:48:12,251 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:48:12,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:48:12 BoogieIcfgContainer [2019-12-07 16:48:12,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:48:12,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:48:12,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:48:12,330 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:48:12,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:11" (3/4) ... [2019-12-07 16:48:12,332 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:48:12,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4a47672-2c07-4a67-8b25-ca4d413741b7/bin/uautomizer/witness.graphml [2019-12-07 16:48:12,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:48:12,402 INFO L168 Benchmark]: Toolchain (without parser) took 1801.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 940.8 MB in the beginning and 895.3 MB in the end (delta: 45.4 MB). Peak memory consumption was 143.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:12,402 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:48:12,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:12,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 1.1 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. [2019-12-07 16:48:12,403 INFO L168 Benchmark]: Boogie Preprocessor took 27.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:48:12,404 INFO L168 Benchmark]: RCFGBuilder took 409.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:12,404 INFO L168 Benchmark]: TraceAbstraction took 918.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.1 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:12,405 INFO L168 Benchmark]: Witness Printer took 70.35 ms. Allocated memory is still 1.1 GB. Free memory was 906.1 MB in the beginning and 895.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:12,407 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -146.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.10 ms. Allocated memory is still 1.1 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 27.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 409.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.7 MB). Peak memory consumption was 62.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 918.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 906.1 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Witness Printer took 70.35 ms. Allocated memory is still 1.1 GB. Free memory was 906.1 MB in the beginning and 895.3 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: 346]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L558] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L755] int waterLevel = 1; [L756] int methaneLevelCritical = 0; [L844] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L917] int retValue_acc ; [L918] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; [L383] retValue_acc = 1 [L384] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L924] tmp = valid_product() [L926] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] COND TRUE waterLevel < 2 [L774] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) [L157] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] int tmp ; [L310] int tmp___0 ; [L311] int tmp___1 ; [L794] int retValue_acc ; [L797] retValue_acc = methaneLevelCritical [L798] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] tmp = isMethaneLevelCritical() [L317] COND FALSE !(\read(tmp)) [L826] int retValue_acc ; [L829] retValue_acc = waterLevel [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp___0 = getWaterLevel() [L323] COND TRUE tmp___0 == 2 [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L325] tmp___1 = isPumpRunning() [L327] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 83 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 440 SDslu, 470 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 185 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3741 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...