./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product14.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_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/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 f8bd2b9cdfe426b4b4e5d96ef145364b2303f1ae ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:28:25,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:28:25,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:28:25,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:28:25,801 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:28:25,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:28:25,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:28:25,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:28:25,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:28:25,806 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:28:25,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:28:25,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:28:25,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:28:25,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:28:25,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:28:25,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:28:25,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:28:25,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:28:25,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:28:25,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:28:25,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:28:25,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:28:25,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:28:25,817 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:28:25,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:28:25,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:28:25,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:28:25,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:28:25,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:28:25,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:28:25,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:28:25,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:28:25,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:28:25,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:28:25,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:28:25,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:28:25,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:28:25,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:28:25,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:28:25,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:28:25,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:28:25,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:28:25,834 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:28:25,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:28:25,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:28:25,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:28:25,835 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:28:25,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:28:25,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:28:25,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:28:25,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:28:25,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:28:25,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:28:25,838 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_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/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 -> f8bd2b9cdfe426b4b4e5d96ef145364b2303f1ae [2019-12-07 13:28:25,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:28:25,953 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:28:25,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:28:25,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:28:25,957 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:28:25,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2019-12-07 13:28:26,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/data/4c065177a/961ec19aa827455da3cde20d07ef7dae/FLAG47679f2ed [2019-12-07 13:28:26,504 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:28:26,504 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/sv-benchmarks/c/product-lines/minepump_spec3_product14.cil.c [2019-12-07 13:28:26,513 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/data/4c065177a/961ec19aa827455da3cde20d07ef7dae/FLAG47679f2ed [2019-12-07 13:28:26,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/data/4c065177a/961ec19aa827455da3cde20d07ef7dae [2019-12-07 13:28:26,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:28:26,983 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:28:26,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:28:26,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:28:26,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:28:26,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:28:26" (1/1) ... [2019-12-07 13:28:26,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7683e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:26, skipping insertion in model container [2019-12-07 13:28:26,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:28:26" (1/1) ... [2019-12-07 13:28:26,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:28:27,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:28:27,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:28:27,247 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:28:27,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:28:27,309 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:28:27,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27 WrapperNode [2019-12-07 13:28:27,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:28:27,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:28:27,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:28:27,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:28:27,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:28:27,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:28:27,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:28:27,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:28:27,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... [2019-12-07 13:28:27,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:28:27,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:28:27,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:28:27,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:28:27,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/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 13:28:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:28:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 13:28:27,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:28:27,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:28:27,773 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:28:27,774 INFO L287 CfgBuilder]: Removed 104 assume(true) statements. [2019-12-07 13:28:27,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:28:27 BoogieIcfgContainer [2019-12-07 13:28:27,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:28:27,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:28:27,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:28:27,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:28:27,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:28:26" (1/3) ... [2019-12-07 13:28:27,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd51be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:28:27, skipping insertion in model container [2019-12-07 13:28:27,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:28:27" (2/3) ... [2019-12-07 13:28:27,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd51be8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:28:27, skipping insertion in model container [2019-12-07 13:28:27,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:28:27" (3/3) ... [2019-12-07 13:28:27,779 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product14.cil.c [2019-12-07 13:28:27,786 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:28:27,790 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 13:28:27,798 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 13:28:27,813 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:28:27,813 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:28:27,813 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:28:27,814 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:28:27,814 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:28:27,814 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:28:27,814 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:28:27,814 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:28:27,825 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2019-12-07 13:28:27,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 13:28:27,830 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:28:27,830 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 13:28:27,830 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:28:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:27,834 INFO L82 PathProgramCache]: Analyzing trace with hash -688968604, now seen corresponding path program 1 times [2019-12-07 13:28:27,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:27,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857492566] [2019-12-07 13:28:27,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:27,987 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 13:28:27,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857492566] [2019-12-07 13:28:27,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:28:27,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:28:27,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172075066] [2019-12-07 13:28:27,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:28:27,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:28:28,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:28:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:28:28,002 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2019-12-07 13:28:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:28:28,019 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2019-12-07 13:28:28,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:28:28,020 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 13:28:28,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:28:28,027 INFO L225 Difference]: With dead ends: 144 [2019-12-07 13:28:28,027 INFO L226 Difference]: Without dead ends: 71 [2019-12-07 13:28:28,029 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 13:28:28,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-12-07 13:28:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-12-07 13:28:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-12-07 13:28:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2019-12-07 13:28:28,056 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 18 [2019-12-07 13:28:28,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:28:28,057 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2019-12-07 13:28:28,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:28:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2019-12-07 13:28:28,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 13:28:28,058 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:28:28,058 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 13:28:28,058 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:28:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:28,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1599999357, now seen corresponding path program 1 times [2019-12-07 13:28:28,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:28,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726554013] [2019-12-07 13:28:28,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:28,118 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 13:28:28,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726554013] [2019-12-07 13:28:28,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:28:28,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:28:28,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358263227] [2019-12-07 13:28:28,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 13:28:28,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:28:28,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 13:28:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 13:28:28,120 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2019-12-07 13:28:28,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:28:28,128 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2019-12-07 13:28:28,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 13:28:28,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 13:28:28,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:28:28,129 INFO L225 Difference]: With dead ends: 71 [2019-12-07 13:28:28,129 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 13:28:28,130 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 13:28:28,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 13:28:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 13:28:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 13:28:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2019-12-07 13:28:28,133 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 19 [2019-12-07 13:28:28,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:28:28,133 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2019-12-07 13:28:28,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 13:28:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2019-12-07 13:28:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 13:28:28,134 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:28:28,134 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 13:28:28,134 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:28:28,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1180040056, now seen corresponding path program 1 times [2019-12-07 13:28:28,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:28,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686083760] [2019-12-07 13:28:28,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:28,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:28,189 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 13:28:28,190 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686083760] [2019-12-07 13:28:28,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:28:28,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 13:28:28,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975283864] [2019-12-07 13:28:28,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:28:28,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:28:28,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:28:28,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:28:28,191 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 5 states. [2019-12-07 13:28:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:28:28,224 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2019-12-07 13:28:28,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:28:28,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-12-07 13:28:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:28:28,225 INFO L225 Difference]: With dead ends: 60 [2019-12-07 13:28:28,225 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 13:28:28,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:28:28,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 13:28:28,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 13:28:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 13:28:28,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2019-12-07 13:28:28,230 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 24 [2019-12-07 13:28:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:28:28,230 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2019-12-07 13:28:28,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:28:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2019-12-07 13:28:28,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 13:28:28,231 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:28:28,231 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 13:28:28,231 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:28:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1819191868, now seen corresponding path program 1 times [2019-12-07 13:28:28,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:28,232 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980939897] [2019-12-07 13:28:28,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:28:28,289 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 13:28:28,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980939897] [2019-12-07 13:28:28,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:28:28,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:28:28,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059176093] [2019-12-07 13:28:28,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:28:28,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:28:28,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:28:28,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:28:28,291 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 5 states. [2019-12-07 13:28:28,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:28:28,359 INFO L93 Difference]: Finished difference Result 158 states and 234 transitions. [2019-12-07 13:28:28,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 13:28:28,359 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 13:28:28,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:28:28,360 INFO L225 Difference]: With dead ends: 158 [2019-12-07 13:28:28,360 INFO L226 Difference]: Without dead ends: 131 [2019-12-07 13:28:28,361 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 13:28:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-12-07 13:28:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 56. [2019-12-07 13:28:28,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-07 13:28:28,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2019-12-07 13:28:28,369 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 25 [2019-12-07 13:28:28,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:28:28,369 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2019-12-07 13:28:28,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:28:28,369 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2019-12-07 13:28:28,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 13:28:28,370 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:28:28,370 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 13:28:28,370 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:28:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:28:28,370 INFO L82 PathProgramCache]: Analyzing trace with hash 516466438, now seen corresponding path program 1 times [2019-12-07 13:28:28,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:28:28,370 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406512040] [2019-12-07 13:28:28,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:28:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:28,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 13:28:28,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 13:28:28,472 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 13:28:28,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:28:28 BoogieIcfgContainer [2019-12-07 13:28:28,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:28:28,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:28:28,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:28:28,536 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:28:28,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:28:27" (3/4) ... [2019-12-07 13:28:28,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 13:28:28,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1bffe725-db31-4ab5-b7e6-7ea4e2d3552f/bin/uautomizer/witness.graphml [2019-12-07 13:28:28,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:28:28,595 INFO L168 Benchmark]: Toolchain (without parser) took 1611.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 943.4 MB in the beginning and 893.4 MB in the end (delta: 50.0 MB). Peak memory consumption was 133.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:28,595 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:28:28,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:28,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.20 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 13:28:28,596 INFO L168 Benchmark]: Boogie Preprocessor took 25.56 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 13:28:28,597 INFO L168 Benchmark]: RCFGBuilder took 398.63 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:28,597 INFO L168 Benchmark]: TraceAbstraction took 759.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 904.1 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:28,597 INFO L168 Benchmark]: Witness Printer took 58.44 ms. Allocated memory is still 1.1 GB. Free memory was 904.1 MB in the beginning and 893.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:28:28,599 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 938.0 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.20 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 25.56 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 398.63 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: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 759.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 904.1 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 58.44 ms. Allocated memory is still 1.1 GB. Free memory was 904.1 MB in the beginning and 893.4 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: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L821] int waterLevel = 1; [L822] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L799] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] tmp = valid_product() [L807] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L659] int splverifierCounter ; [L660] int tmp ; [L661] int tmp___0 ; [L662] int tmp___1 ; [L663] int tmp___2 ; [L666] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] tmp = __VERIFIER_nondet_int() [L678] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] COND TRUE waterLevel < 2 [L840] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] tmp___0 = __VERIFIER_nondet_int() [L688] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L696] tmp___2 = __VERIFIER_nondet_int() [L698] COND TRUE \read(tmp___2) [L284] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L145] COND TRUE \read(systemActive) [L167] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L860] int retValue_acc ; [L863] retValue_acc = methaneLevelCritical [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L892] int retValue_acc ; [L895] retValue_acc = waterLevel [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L236] int retValue_acc ; [L239] retValue_acc = pumpRunning [L240] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L44] __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, 75 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 260 SDtfs, 334 SDslu, 177 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 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, 3028 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...