./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/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 fa84680efe228141f2f1a8a0259e3b287bc28d50 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:28:24,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:28:24,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:28:24,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:28:24,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:28:24,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:28:24,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:28:24,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:28:24,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:28:24,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:28:24,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:28:24,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:28:24,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:28:24,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:28:24,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:28:24,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:28:24,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:28:24,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:28:24,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:28:24,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:28:24,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:28:24,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:28:24,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:28:24,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:28:24,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:28:24,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:28:24,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:28:24,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:28:24,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:28:24,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:28:24,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:28:24,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:28:24,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:28:24,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:28:24,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:28:24,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:28:24,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:28:24,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:28:24,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:28:24,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:28:24,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:28:24,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:28:24,670 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:28:24,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:28:24,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:28:24,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:28:24,681 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:28:24,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:28:24,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:28:24,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:28:24,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:28:24,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:28:24,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:28:24,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:28:24,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:28:24,683 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:28:24,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:28:24,683 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:28:24,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:28:24,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:28:24,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:28:24,685 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:28:24,685 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:28:24,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:28:24,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:28:24,686 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:28:24,686 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:28:24,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:28:24,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:28:24,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:28:24,687 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_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/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 -> fa84680efe228141f2f1a8a0259e3b287bc28d50 [2019-11-20 09:28:24,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:28:24,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:28:24,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:28:24,881 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:28:24,882 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:28:24,882 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2019-11-20 09:28:24,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/data/859c7a374/6729111a7a4643f1bc18c50e2369b6d5/FLAGf4e63919a [2019-11-20 09:28:25,346 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:28:25,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/sv-benchmarks/c/product-lines/minepump_spec3_product07.cil.c [2019-11-20 09:28:25,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/data/859c7a374/6729111a7a4643f1bc18c50e2369b6d5/FLAGf4e63919a [2019-11-20 09:28:25,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/data/859c7a374/6729111a7a4643f1bc18c50e2369b6d5 [2019-11-20 09:28:25,657 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:28:25,658 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:28:25,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:28:25,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:28:25,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:28:25,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:25" (1/1) ... [2019-11-20 09:28:25,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7e20c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:25, skipping insertion in model container [2019-11-20 09:28:25,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:25" (1/1) ... [2019-11-20 09:28:25,676 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:28:25,732 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:28:26,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:28:26,158 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:28:26,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:28:26,280 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:28:26,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26 WrapperNode [2019-11-20 09:28:26,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:28:26,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:28:26,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:28:26,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:28:26,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:28:26,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:28:26,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:28:26,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:28:26,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... [2019-11-20 09:28:26,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:28:26,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:28:26,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:28:26,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:28:26,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:28:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:28:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 09:28:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:28:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:28:27,048 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:28:27,049 INFO L285 CfgBuilder]: Removed 106 assume(true) statements. [2019-11-20 09:28:27,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:27 BoogieIcfgContainer [2019-11-20 09:28:27,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:28:27,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:28:27,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:28:27,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:28:27,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:28:25" (1/3) ... [2019-11-20 09:28:27,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d492fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:27, skipping insertion in model container [2019-11-20 09:28:27,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:26" (2/3) ... [2019-11-20 09:28:27,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d492fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:28:27, skipping insertion in model container [2019-11-20 09:28:27,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:27" (3/3) ... [2019-11-20 09:28:27,065 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2019-11-20 09:28:27,075 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:28:27,081 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-20 09:28:27,091 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-20 09:28:27,119 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:28:27,119 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:28:27,120 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:28:27,120 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:28:27,120 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:28:27,120 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:28:27,120 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:28:27,121 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:28:27,134 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2019-11-20 09:28:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 09:28:27,147 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:28:27,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:28:27,148 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:28:27,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:28:27,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1227208852, now seen corresponding path program 1 times [2019-11-20 09:28:27,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:28:27,162 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254977845] [2019-11-20 09:28:27,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:28:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:28:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:28:27,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254977845] [2019-11-20 09:28:27,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:28:27,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:28:27,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057027187] [2019-11-20 09:28:27,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:28:27,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:28:27,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:28:27,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:28:27,493 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2019-11-20 09:28:27,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:28:27,533 INFO L93 Difference]: Finished difference Result 148 states and 221 transitions. [2019-11-20 09:28:27,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:28:27,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-11-20 09:28:27,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:28:27,543 INFO L225 Difference]: With dead ends: 148 [2019-11-20 09:28:27,543 INFO L226 Difference]: Without dead ends: 73 [2019-11-20 09:28:27,546 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:28:27,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-20 09:28:27,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-11-20 09:28:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-11-20 09:28:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2019-11-20 09:28:27,581 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2019-11-20 09:28:27,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:28:27,581 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2019-11-20 09:28:27,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:28:27,582 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2019-11-20 09:28:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 09:28:27,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:28:27,583 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:28:27,583 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:28:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:28:27,584 INFO L82 PathProgramCache]: Analyzing trace with hash -2138239605, now seen corresponding path program 1 times [2019-11-20 09:28:27,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:28:27,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857262450] [2019-11-20 09:28:27,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:28:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:28:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:28:27,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857262450] [2019-11-20 09:28:27,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:28:27,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:28:27,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183030380] [2019-11-20 09:28:27,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:28:27,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:28:27,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:28:27,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:28:27,675 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2019-11-20 09:28:27,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:28:27,687 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2019-11-20 09:28:27,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:28:27,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-11-20 09:28:27,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:28:27,689 INFO L225 Difference]: With dead ends: 73 [2019-11-20 09:28:27,689 INFO L226 Difference]: Without dead ends: 35 [2019-11-20 09:28:27,690 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:28:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-20 09:28:27,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-20 09:28:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-20 09:28:27,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2019-11-20 09:28:27,695 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2019-11-20 09:28:27,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:28:27,696 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2019-11-20 09:28:27,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:28:27,696 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2019-11-20 09:28:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 09:28:27,697 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:28:27,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:28:27,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:28:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:28:27,698 INFO L82 PathProgramCache]: Analyzing trace with hash -227571320, now seen corresponding path program 1 times [2019-11-20 09:28:27,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:28:27,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419414291] [2019-11-20 09:28:27,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:28:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:28:27,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:28:27,799 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419414291] [2019-11-20 09:28:27,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:28:27,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:28:27,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37245404] [2019-11-20 09:28:27,800 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:28:27,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:28:27,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:28:27,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:28:27,801 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2019-11-20 09:28:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:28:27,827 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2019-11-20 09:28:27,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:28:27,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-11-20 09:28:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:28:27,831 INFO L225 Difference]: With dead ends: 93 [2019-11-20 09:28:27,831 INFO L226 Difference]: Without dead ends: 64 [2019-11-20 09:28:27,832 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:28:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-11-20 09:28:27,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2019-11-20 09:28:27,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2019-11-20 09:28:27,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2019-11-20 09:28:27,849 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2019-11-20 09:28:27,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:28:27,850 INFO L462 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2019-11-20 09:28:27,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:28:27,856 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2019-11-20 09:28:27,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-20 09:28:27,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:28:27,857 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:28:27,857 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:28:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:28:27,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1937535180, now seen corresponding path program 1 times [2019-11-20 09:28:27,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:28:27,858 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737163878] [2019-11-20 09:28:27,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:28:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:28:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:28:27,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737163878] [2019-11-20 09:28:27,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:28:27,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 09:28:27,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51639712] [2019-11-20 09:28:27,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:28:27,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:28:27,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:28:27,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:28:27,953 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand 5 states. [2019-11-20 09:28:28,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:28:28,101 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2019-11-20 09:28:28,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:28:28,104 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-20 09:28:28,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:28:28,107 INFO L225 Difference]: With dead ends: 320 [2019-11-20 09:28:28,108 INFO L226 Difference]: Without dead ends: 266 [2019-11-20 09:28:28,108 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:28:28,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-20 09:28:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2019-11-20 09:28:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-20 09:28:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2019-11-20 09:28:28,150 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 25 [2019-11-20 09:28:28,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:28:28,151 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2019-11-20 09:28:28,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:28:28,151 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2019-11-20 09:28:28,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 09:28:28,156 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:28:28,156 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:28:28,156 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:28:28,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:28:28,157 INFO L82 PathProgramCache]: Analyzing trace with hash -21773810, now seen corresponding path program 1 times [2019-11-20 09:28:28,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:28:28,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644088580] [2019-11-20 09:28:28,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:28:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:28:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:28:28,396 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:28:28,397 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:28:28,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:28 BoogieIcfgContainer [2019-11-20 09:28:28,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:28:28,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:28:28,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:28:28,539 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:28:28,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:27" (3/4) ... [2019-11-20 09:28:28,541 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 09:28:28,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c8b9a662-c4ea-4b3c-83da-557de0fae4a6/bin/uautomizer/witness.graphml [2019-11-20 09:28:28,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:28:28,675 INFO L168 Benchmark]: Toolchain (without parser) took 3016.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.4 MB in the beginning and 921.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 125.6 MB. Max. memory is 11.5 GB. [2019-11-20 09:28:28,676 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:28:28,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:28:28,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.84 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. [2019-11-20 09:28:28,680 INFO L168 Benchmark]: Boogie Preprocessor took 36.66 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. [2019-11-20 09:28:28,681 INFO L168 Benchmark]: RCFGBuilder took 678.14 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-20 09:28:28,681 INFO L168 Benchmark]: TraceAbstraction took 1487.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 932.0 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:28:28,682 INFO L168 Benchmark]: Witness Printer took 134.94 ms. Allocated memory is still 1.1 GB. Free memory was 932.0 MB in the beginning and 921.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:28:28,685 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 621.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.84 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. * Boogie Preprocessor took 36.66 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. * RCFGBuilder took 678.14 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1487.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 932.0 MB in the end (delta: 96.7 MB). Peak memory consumption was 96.7 MB. Max. memory is 11.5 GB. * Witness Printer took 134.94 ms. Allocated memory is still 1.1 GB. Free memory was 932.0 MB in the beginning and 921.3 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: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] 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] [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] COND TRUE \read(systemActive) [L632] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L574] tmp___1 = isPumpRunning() [L576] 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, 77 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 272 SDslu, 233 SDs, 0 SdLazy, 39 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 3488 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...