./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.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_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/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 6b50f176f9cc083683ce70010cc4357ff865e696 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:49:34,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:49:34,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:49:34,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:49:34,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:49:34,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:49:34,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:49:34,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:49:34,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:49:34,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:49:34,539 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:49:34,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:49:34,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:49:34,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:49:34,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:49:34,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:49:34,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:49:34,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:49:34,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:49:34,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:49:34,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:49:34,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:49:34,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:49:34,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:49:34,551 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:49:34,551 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:49:34,551 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:49:34,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:49:34,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:49:34,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:49:34,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:49:34,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:49:34,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:49:34,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:49:34,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:49:34,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:49:34,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:49:34,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:49:34,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:49:34,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:49:34,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:49:34,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:49:34,570 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:49:34,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:49:34,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:49:34,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:49:34,572 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:49:34,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:49:34,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:49:34,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:49:34,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:49:34,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:49:34,574 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:49:34,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:49:34,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:49:34,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:49:34,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:49:34,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:49:34,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:49:34,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:49:34,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:49:34,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:49:34,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:49:34,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:49:34,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:49:34,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:49:34,576 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_156fa05f-aa2a-41e4-b021-b4c3b50a139c/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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-12-07 18:49:34,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:49:34,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:49:34,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:49:34,688 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:49:34,688 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:49:34,688 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 18:49:34,725 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/data/f1e5b368c/d7918d1800234ca5bfbfefb8e50d3a53/FLAG50735adfe [2019-12-07 18:49:35,091 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:49:35,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/sv-benchmarks/c/product-lines/minepump_spec3_product43.cil.c [2019-12-07 18:49:35,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/data/f1e5b368c/d7918d1800234ca5bfbfefb8e50d3a53/FLAG50735adfe [2019-12-07 18:49:35,108 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/data/f1e5b368c/d7918d1800234ca5bfbfefb8e50d3a53 [2019-12-07 18:49:35,110 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:49:35,111 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:49:35,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:49:35,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:49:35,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:49:35,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2b2671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35, skipping insertion in model container [2019-12-07 18:49:35,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:49:35,148 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:49:35,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:49:35,360 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:49:35,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:49:35,427 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:49:35,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35 WrapperNode [2019-12-07 18:49:35,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:49:35,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:49:35,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:49:35,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:49:35,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:49:35,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:49:35,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:49:35,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:49:35,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... [2019-12-07 18:49:35,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:49:35,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:49:35,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:49:35,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:49:35,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/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 18:49:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:49:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:49:35,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:49:35,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:49:35,937 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:49:35,937 INFO L287 CfgBuilder]: Removed 124 assume(true) statements. [2019-12-07 18:49:35,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35 BoogieIcfgContainer [2019-12-07 18:49:35,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:49:35,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:49:35,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:49:35,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:49:35,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:49:35" (1/3) ... [2019-12-07 18:49:35,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bded085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:49:35, skipping insertion in model container [2019-12-07 18:49:35,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:49:35" (2/3) ... [2019-12-07 18:49:35,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bded085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:49:35, skipping insertion in model container [2019-12-07 18:49:35,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35" (3/3) ... [2019-12-07 18:49:35,943 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2019-12-07 18:49:35,950 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:49:35,954 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:49:35,962 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:49:35,979 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:49:35,979 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:49:35,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:49:35,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:49:35,979 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:49:35,979 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:49:35,979 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:49:35,979 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:49:35,992 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-12-07 18:49:35,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:49:35,996 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:35,996 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 18:49:35,997 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,000 INFO L82 PathProgramCache]: Analyzing trace with hash 725412282, now seen corresponding path program 1 times [2019-12-07 18:49:36,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484643674] [2019-12-07 18:49:36,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,157 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 18:49:36,157 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484643674] [2019-12-07 18:49:36,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:49:36,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59098717] [2019-12-07 18:49:36,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:49:36,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:49:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:49:36,171 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 2 states. [2019-12-07 18:49:36,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,190 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2019-12-07 18:49:36,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:49:36,191 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 18:49:36,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,199 INFO L225 Difference]: With dead ends: 184 [2019-12-07 18:49:36,199 INFO L226 Difference]: Without dead ends: 91 [2019-12-07 18:49:36,201 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 18:49:36,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-12-07 18:49:36,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-12-07 18:49:36,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-12-07 18:49:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-12-07 18:49:36,229 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2019-12-07 18:49:36,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,229 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-12-07 18:49:36,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:49:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-12-07 18:49:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:49:36,230 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,230 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 18:49:36,230 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,230 INFO L82 PathProgramCache]: Analyzing trace with hash -185618471, now seen corresponding path program 1 times [2019-12-07 18:49:36,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242432336] [2019-12-07 18:49:36,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,290 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 18:49:36,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242432336] [2019-12-07 18:49:36,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:49:36,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060609711] [2019-12-07 18:49:36,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:49:36,293 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:49:36,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:49:36,293 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 3 states. [2019-12-07 18:49:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,302 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2019-12-07 18:49:36,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:49:36,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 18:49:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,303 INFO L225 Difference]: With dead ends: 91 [2019-12-07 18:49:36,303 INFO L226 Difference]: Without dead ends: 41 [2019-12-07 18:49:36,304 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 18:49:36,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-12-07 18:49:36,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-12-07 18:49:36,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-12-07 18:49:36,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-12-07 18:49:36,308 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-12-07 18:49:36,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,308 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-12-07 18:49:36,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:49:36,309 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-12-07 18:49:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:49:36,309 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,309 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 18:49:36,309 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2096218593, now seen corresponding path program 1 times [2019-12-07 18:49:36,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21491460] [2019-12-07 18:49:36,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,383 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 18:49:36,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21491460] [2019-12-07 18:49:36,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 18:49:36,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844413777] [2019-12-07 18:49:36,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:49:36,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:49:36,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:49:36,384 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 6 states. [2019-12-07 18:49:36,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,469 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2019-12-07 18:49:36,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:49:36,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-12-07 18:49:36,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,470 INFO L225 Difference]: With dead ends: 136 [2019-12-07 18:49:36,470 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 18:49:36,471 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:49:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 18:49:36,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2019-12-07 18:49:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-12-07 18:49:36,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2019-12-07 18:49:36,478 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2019-12-07 18:49:36,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,478 INFO L462 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2019-12-07 18:49:36,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:49:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2019-12-07 18:49:36,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 18:49:36,479 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,479 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 18:49:36,479 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,479 INFO L82 PathProgramCache]: Analyzing trace with hash 68887907, now seen corresponding path program 1 times [2019-12-07 18:49:36,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321519421] [2019-12-07 18:49:36,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,513 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 18:49:36,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321519421] [2019-12-07 18:49:36,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:49:36,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066379637] [2019-12-07 18:49:36,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:49:36,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:49:36,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:49:36,514 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2019-12-07 18:49:36,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,535 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2019-12-07 18:49:36,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:49:36,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 18:49:36,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,536 INFO L225 Difference]: With dead ends: 141 [2019-12-07 18:49:36,537 INFO L226 Difference]: Without dead ends: 85 [2019-12-07 18:49:36,537 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 [2019-12-07 18:49:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-12-07 18:49:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2019-12-07 18:49:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-12-07 18:49:36,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2019-12-07 18:49:36,545 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2019-12-07 18:49:36,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,546 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2019-12-07 18:49:36,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:49:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2019-12-07 18:49:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:49:36,547 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,547 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:36,547 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,547 INFO L82 PathProgramCache]: Analyzing trace with hash -192728908, now seen corresponding path program 1 times [2019-12-07 18:49:36,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430670804] [2019-12-07 18:49:36,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:49:36,591 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 18:49:36,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430670804] [2019-12-07 18:49:36,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:49:36,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:49:36,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363265511] [2019-12-07 18:49:36,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:49:36,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:49:36,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:49:36,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:49:36,592 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 5 states. [2019-12-07 18:49:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:49:36,687 INFO L93 Difference]: Finished difference Result 448 states and 656 transitions. [2019-12-07 18:49:36,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:49:36,688 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 18:49:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:49:36,691 INFO L225 Difference]: With dead ends: 448 [2019-12-07 18:49:36,691 INFO L226 Difference]: Without dead ends: 371 [2019-12-07 18:49:36,692 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 18:49:36,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-12-07 18:49:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 150. [2019-12-07 18:49:36,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-12-07 18:49:36,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 209 transitions. [2019-12-07 18:49:36,714 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 209 transitions. Word has length 27 [2019-12-07 18:49:36,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:49:36,714 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 209 transitions. [2019-12-07 18:49:36,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:49:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 209 transitions. [2019-12-07 18:49:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 18:49:36,716 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:49:36,716 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:49:36,717 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:49:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:49:36,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1892992650, now seen corresponding path program 1 times [2019-12-07 18:49:36,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:49:36,717 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591549082] [2019-12-07 18:49:36,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:49:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:49:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:49:36,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:49:36,846 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:49:36,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:49:36 BoogieIcfgContainer [2019-12-07 18:49:36,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:49:36,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:49:36,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:49:36,909 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:49:36,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:49:35" (3/4) ... [2019-12-07 18:49:36,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:49:36,967 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_156fa05f-aa2a-41e4-b021-b4c3b50a139c/bin/uautomizer/witness.graphml [2019-12-07 18:49:36,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:49:36,969 INFO L168 Benchmark]: Toolchain (without parser) took 1857.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 940.9 MB in the beginning and 882.2 MB in the end (delta: 58.7 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:36,969 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:49:36,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:36,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.99 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 18:49:36,970 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 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 18:49:36,970 INFO L168 Benchmark]: RCFGBuilder took 438.77 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: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:36,970 INFO L168 Benchmark]: TraceAbstraction took 969.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 893.0 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:36,971 INFO L168 Benchmark]: Witness Printer took 58.48 ms. Allocated memory is still 1.1 GB. Free memory was 893.0 MB in the beginning and 882.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:49:36,972 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 935.5 MB in the beginning and 1.1 GB in the end (delta: -153.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.99 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 28.12 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 438.77 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: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 969.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 893.0 MB in the end (delta: 130.0 MB). Peak memory consumption was 130.0 MB. Max. memory is 11.5 GB. * Witness Printer took 58.48 ms. Allocated memory is still 1.1 GB. Free memory was 893.0 MB in the beginning and 882.2 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: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L611] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L148] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 393 SDtfs, 579 SDslu, 515 SDs, 0 SdLazy, 70 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 262 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...