./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.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_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:04:57,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:04:57,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:04:57,664 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:04:57,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:04:57,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:04:57,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:04:57,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:04:57,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:04:57,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:04:57,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:04:57,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:04:57,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:04:57,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:04:57,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:04:57,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:04:57,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:04:57,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:04:57,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:04:57,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:04:57,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:04:57,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:04:57,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:04:57,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:04:57,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:04:57,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:04:57,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:04:57,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:04:57,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:04:57,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:04:57,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:04:57,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:04:57,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:04:57,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:04:57,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:04:57,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:04:57,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:04:57,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:04:57,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:04:57,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:04:57,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:04:57,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:04:57,696 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:04:57,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:04:57,697 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:04:57,697 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:04:57,697 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:04:57,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:04:57,697 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:04:57,697 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:04:57,697 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:04:57,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:04:57,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:04:57,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:04:57,699 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:04:57,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:04:57,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:04:57,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:04:57,700 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_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-12-07 18:04:57,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:04:57,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:04:57,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:04:57,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:04:57,810 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:04:57,810 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 18:04:57,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/data/f5c0306c5/ca178b557f5243dba56d440f1a9525ff/FLAG1111d858e [2019-12-07 18:04:58,293 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:04:58,294 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-12-07 18:04:58,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/data/f5c0306c5/ca178b557f5243dba56d440f1a9525ff/FLAG1111d858e [2019-12-07 18:04:58,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/data/f5c0306c5/ca178b557f5243dba56d440f1a9525ff [2019-12-07 18:04:58,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:04:58,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:04:58,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:04:58,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:04:58,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:04:58,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58, skipping insertion in model container [2019-12-07 18:04:58,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:04:58,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:04:58,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:04:58,574 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:04:58,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:04:58,648 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:04:58,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58 WrapperNode [2019-12-07 18:04:58,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:04:58,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:04:58,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:04:58,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:04:58,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:04:58,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:04:58,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:04:58,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:04:58,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... [2019-12-07 18:04:58,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:04:58,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:04:58,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:04:58,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:04:58,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/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 18:04:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:04:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 18:04:58,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:04:58,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:04:59,366 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:04:59,366 INFO L287 CfgBuilder]: Removed 360 assume(true) statements. [2019-12-07 18:04:59,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:59 BoogieIcfgContainer [2019-12-07 18:04:59,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:04:59,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:04:59,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:04:59,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:04:59,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:04:58" (1/3) ... [2019-12-07 18:04:59,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72310fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:04:59, skipping insertion in model container [2019-12-07 18:04:59,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:04:58" (2/3) ... [2019-12-07 18:04:59,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72310fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:04:59, skipping insertion in model container [2019-12-07 18:04:59,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:59" (3/3) ... [2019-12-07 18:04:59,371 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2019-12-07 18:04:59,378 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:04:59,383 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 18:04:59,390 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 18:04:59,406 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:04:59,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:04:59,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:04:59,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:04:59,407 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:04:59,407 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:04:59,407 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:04:59,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:04:59,421 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2019-12-07 18:04:59,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 18:04:59,425 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:04:59,426 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 18:04:59,426 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:04:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:59,430 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2019-12-07 18:04:59,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:59,436 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734722788] [2019-12-07 18:04:59,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:59,585 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 18:04:59,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734722788] [2019-12-07 18:04:59,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:59,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:04:59,587 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004568994] [2019-12-07 18:04:59,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:04:59,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:59,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:04:59,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:04:59,600 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2019-12-07 18:04:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:59,632 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2019-12-07 18:04:59,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:04:59,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 18:04:59,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:04:59,642 INFO L225 Difference]: With dead ends: 460 [2019-12-07 18:04:59,642 INFO L226 Difference]: Without dead ends: 229 [2019-12-07 18:04:59,645 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 18:04:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-12-07 18:04:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2019-12-07 18:04:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2019-12-07 18:04:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2019-12-07 18:04:59,683 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2019-12-07 18:04:59,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:04:59,683 INFO L462 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2019-12-07 18:04:59,683 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:04:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2019-12-07 18:04:59,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 18:04:59,684 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:04:59,684 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 18:04:59,685 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:04:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:59,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2019-12-07 18:04:59,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:59,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045837523] [2019-12-07 18:04:59,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:59,746 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 18:04:59,746 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045837523] [2019-12-07 18:04:59,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:59,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:04:59,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308082203] [2019-12-07 18:04:59,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:04:59,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:59,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:04:59,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:04:59,748 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2019-12-07 18:04:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:59,761 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2019-12-07 18:04:59,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:04:59,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 18:04:59,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:04:59,762 INFO L225 Difference]: With dead ends: 229 [2019-12-07 18:04:59,762 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 18:04:59,764 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 18:04:59,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 18:04:59,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2019-12-07 18:04:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2019-12-07 18:04:59,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2019-12-07 18:04:59,769 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2019-12-07 18:04:59,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:04:59,770 INFO L462 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2019-12-07 18:04:59,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:04:59,770 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2019-12-07 18:04:59,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 18:04:59,771 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:04:59,771 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 18:04:59,771 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:04:59,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:59,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2019-12-07 18:04:59,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:59,771 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562579637] [2019-12-07 18:04:59,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:59,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:59,820 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 18:04:59,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562579637] [2019-12-07 18:04:59,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:59,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:04:59,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097866424] [2019-12-07 18:04:59,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:04:59,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:59,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:04:59,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:04:59,822 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2019-12-07 18:04:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:59,849 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2019-12-07 18:04:59,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:04:59,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 18:04:59,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:04:59,851 INFO L225 Difference]: With dead ends: 249 [2019-12-07 18:04:59,851 INFO L226 Difference]: Without dead ends: 168 [2019-12-07 18:04:59,852 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 18:04:59,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-12-07 18:04:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2019-12-07 18:04:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-12-07 18:04:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2019-12-07 18:04:59,865 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2019-12-07 18:04:59,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:04:59,865 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2019-12-07 18:04:59,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:04:59,866 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2019-12-07 18:04:59,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:04:59,867 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:04:59,867 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 18:04:59,867 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:04:59,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:59,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2019-12-07 18:04:59,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:59,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676280486] [2019-12-07 18:04:59,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:04:59,907 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 18:04:59,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676280486] [2019-12-07 18:04:59,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:04:59,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:04:59,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313764393] [2019-12-07 18:04:59,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 18:04:59,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:04:59,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:04:59,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:04:59,909 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2019-12-07 18:04:59,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:04:59,945 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2019-12-07 18:04:59,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:04:59,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-12-07 18:04:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:04:59,947 INFO L225 Difference]: With dead ends: 337 [2019-12-07 18:04:59,947 INFO L226 Difference]: Without dead ends: 179 [2019-12-07 18:04:59,948 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 18:04:59,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-12-07 18:04:59,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2019-12-07 18:04:59,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-12-07 18:04:59,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2019-12-07 18:04:59,960 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2019-12-07 18:04:59,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:04:59,960 INFO L462 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2019-12-07 18:04:59,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 18:04:59,960 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2019-12-07 18:04:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 18:04:59,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:04:59,961 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 18:04:59,961 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:04:59,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:04:59,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2019-12-07 18:04:59,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:04:59,962 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081395624] [2019-12-07 18:04:59,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:04:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:05:00,010 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 18:05:00,010 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081395624] [2019-12-07 18:05:00,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:05:00,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 18:05:00,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424303300] [2019-12-07 18:05:00,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 18:05:00,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:05:00,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 18:05:00,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 18:05:00,012 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2019-12-07 18:05:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:05:00,115 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2019-12-07 18:05:00,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:05:00,115 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 18:05:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:05:00,118 INFO L225 Difference]: With dead ends: 899 [2019-12-07 18:05:00,119 INFO L226 Difference]: Without dead ends: 728 [2019-12-07 18:05:00,119 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 18:05:00,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-12-07 18:05:00,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2019-12-07 18:05:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2019-12-07 18:05:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2019-12-07 18:05:00,139 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2019-12-07 18:05:00,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:05:00,139 INFO L462 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2019-12-07 18:05:00,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 18:05:00,139 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2019-12-07 18:05:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 18:05:00,140 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:05:00,140 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 18:05:00,141 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:05:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:05:00,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2019-12-07 18:05:00,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:05:00,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572119361] [2019-12-07 18:05:00,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:05:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:05:00,248 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:05:00,248 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:05:00,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:05:00 BoogieIcfgContainer [2019-12-07 18:05:00,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:05:00,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:05:00,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:05:00,320 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:05:00,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:04:59" (3/4) ... [2019-12-07 18:05:00,322 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:05:00,380 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4bc12982-d55f-48aa-9f14-e3ab9d8c2dc6/bin/uautomizer/witness.graphml [2019-12-07 18:05:00,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:05:00,381 INFO L168 Benchmark]: Toolchain (without parser) took 2066.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -118.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:05:00,382 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:05:00,382 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:05:00,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:05:00,382 INFO L168 Benchmark]: Boogie Preprocessor took 46.46 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 18:05:00,383 INFO L168 Benchmark]: RCFGBuilder took 611.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.7 MB in the end (delta: 94.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:05:00,383 INFO L168 Benchmark]: TraceAbstraction took 951.76 ms. Allocated memory is still 1.1 GB. Free memory was 959.4 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 145.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:05:00,383 INFO L168 Benchmark]: Witness Printer took 60.44 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:05:00,385 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 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -135.8 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.46 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 611.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 964.7 MB in the end (delta: 94.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 951.76 ms. Allocated memory is still 1.1 GB. Free memory was 959.4 MB in the beginning and 1.1 GB in the end (delta: -115.5 MB). Peak memory consumption was 145.9 MB. Max. memory is 11.5 GB. * Witness Printer took 60.44 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: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L367] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L98] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L996] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 233 locations, 3 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 869 SDtfs, 694 SDslu, 598 SDs, 0 SdLazy, 73 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 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...