./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-a4ecdab [2020-11-28 03:14:27,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:14:27,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:14:27,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:14:27,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:14:27,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:14:27,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:14:27,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:14:27,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:14:27,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:14:27,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:14:27,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:14:27,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:14:27,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:14:27,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:14:27,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:14:27,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:14:27,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:14:27,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:14:27,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:14:27,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:14:27,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:14:27,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:14:27,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:14:27,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:14:27,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:14:27,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:14:27,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:14:27,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:14:27,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:14:27,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:14:27,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:14:27,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:14:27,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:14:27,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:14:27,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:14:27,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:14:27,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:14:27,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:14:27,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:14:27,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:14:27,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:14:27,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:14:27,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:14:27,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:14:27,510 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:14:27,510 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:14:27,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:14:27,511 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:14:27,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:14:27,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:14:27,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:14:27,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:14:27,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:14:27,512 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:14:27,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:14:27,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:14:27,513 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:14:27,513 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:14:27,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:14:27,513 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:14:27,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:14:27,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:14:27,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:14:27,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:14:27,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:14:27,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:14:27,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:14:27,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:14:27,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:14:27,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:14:27,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c69bef4f4f2450c32edaec1a26ef48007ef0e6d [2020-11-28 03:14:27,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:14:27,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:14:27,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:14:27,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:14:27,774 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:14:27,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-28 03:14:27,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/data/5e8bc2af4/c63a89d82796404b80faaa4ad7922078/FLAGf51d0110e [2020-11-28 03:14:28,353 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:14:28,366 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/sv-benchmarks/c/product-lines/minepump_spec1_product54.cil.c [2020-11-28 03:14:28,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/data/5e8bc2af4/c63a89d82796404b80faaa4ad7922078/FLAGf51d0110e [2020-11-28 03:14:28,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/data/5e8bc2af4/c63a89d82796404b80faaa4ad7922078 [2020-11-28 03:14:28,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:14:28,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:14:28,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:28,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:14:28,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:14:28,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:28" (1/1) ... [2020-11-28 03:14:28,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9d6f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:28, skipping insertion in model container [2020-11-28 03:14:28,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:28" (1/1) ... [2020-11-28 03:14:28,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:14:28,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:14:29,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:29,074 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:14:29,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:14:29,243 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:14:29,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29 WrapperNode [2020-11-28 03:14:29,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:14:29,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:29,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:14:29,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:14:29,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:14:29,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:14:29,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:14:29,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:14:29,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... [2020-11-28 03:14:29,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:14:29,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:14:29,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:14:29,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:14:29,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/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 [2020-11-28 03:14:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:14:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:14:29,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:14:29,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:14:30,753 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:14:30,754 INFO L298 CfgBuilder]: Removed 284 assume(true) statements. [2020-11-28 03:14:30,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:30 BoogieIcfgContainer [2020-11-28 03:14:30,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:14:30,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:14:30,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:14:30,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:14:30,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:14:28" (1/3) ... [2020-11-28 03:14:30,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d76c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:30, skipping insertion in model container [2020-11-28 03:14:30,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:29" (2/3) ... [2020-11-28 03:14:30,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d76c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:14:30, skipping insertion in model container [2020-11-28 03:14:30,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:30" (3/3) ... [2020-11-28 03:14:30,766 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-11-28 03:14:30,780 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:14:30,784 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-28 03:14:30,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-28 03:14:30,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:14:30,833 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:14:30,833 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:14:30,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:14:30,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:14:30,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:14:30,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:14:30,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:14:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-11-28 03:14:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 03:14:30,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:30,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:30,868 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:30,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:30,878 INFO L82 PathProgramCache]: Analyzing trace with hash 265155869, now seen corresponding path program 1 times [2020-11-28 03:14:30,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:30,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238643853] [2020-11-28 03:14:30,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:31,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238643853] [2020-11-28 03:14:31,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:31,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:31,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852762545] [2020-11-28 03:14:31,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:14:31,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:31,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:14:31,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:14:31,218 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 2 states. [2020-11-28 03:14:31,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:31,256 INFO L93 Difference]: Finished difference Result 375 states and 572 transitions. [2020-11-28 03:14:31,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:14:31,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-28 03:14:31,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:31,269 INFO L225 Difference]: With dead ends: 375 [2020-11-28 03:14:31,269 INFO L226 Difference]: Without dead ends: 185 [2020-11-28 03:14:31,273 INFO L677 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 [2020-11-28 03:14:31,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-28 03:14:31,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-11-28 03:14:31,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-28 03:14:31,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 276 transitions. [2020-11-28 03:14:31,323 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 276 transitions. Word has length 16 [2020-11-28 03:14:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:31,324 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 276 transitions. [2020-11-28 03:14:31,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:14:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 276 transitions. [2020-11-28 03:14:31,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 03:14:31,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:31,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:14:31,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:14:31,329 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:31,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:31,330 INFO L82 PathProgramCache]: Analyzing trace with hash -781601028, now seen corresponding path program 1 times [2020-11-28 03:14:31,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:31,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418114979] [2020-11-28 03:14:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:31,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418114979] [2020-11-28 03:14:31,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:31,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:31,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290263322] [2020-11-28 03:14:31,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:31,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:31,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:31,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:31,488 INFO L87 Difference]: Start difference. First operand 185 states and 276 transitions. Second operand 3 states. [2020-11-28 03:14:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:31,513 INFO L93 Difference]: Finished difference Result 185 states and 276 transitions. [2020-11-28 03:14:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:31,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 03:14:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:31,515 INFO L225 Difference]: With dead ends: 185 [2020-11-28 03:14:31,516 INFO L226 Difference]: Without dead ends: 71 [2020-11-28 03:14:31,517 INFO L677 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 [2020-11-28 03:14:31,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-28 03:14:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-28 03:14:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:14:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2020-11-28 03:14:31,532 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 17 [2020-11-28 03:14:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:31,532 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2020-11-28 03:14:31,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:31,532 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2020-11-28 03:14:31,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:14:31,533 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:31,533 INFO L422 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] [2020-11-28 03:14:31,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:14:31,533 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:31,534 INFO L82 PathProgramCache]: Analyzing trace with hash -886510538, now seen corresponding path program 1 times [2020-11-28 03:14:31,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:31,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773782276] [2020-11-28 03:14:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:31,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773782276] [2020-11-28 03:14:31,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:31,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:14:31,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934278286] [2020-11-28 03:14:31,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:31,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:31,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:31,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:31,629 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand 3 states. [2020-11-28 03:14:31,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:31,656 INFO L93 Difference]: Finished difference Result 136 states and 204 transitions. [2020-11-28 03:14:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:31,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-28 03:14:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:31,657 INFO L225 Difference]: With dead ends: 136 [2020-11-28 03:14:31,658 INFO L226 Difference]: Without dead ends: 71 [2020-11-28 03:14:31,658 INFO L677 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 [2020-11-28 03:14:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-28 03:14:31,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-28 03:14:31,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:14:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2020-11-28 03:14:31,667 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 104 transitions. Word has length 22 [2020-11-28 03:14:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:31,667 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 104 transitions. [2020-11-28 03:14:31,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2020-11-28 03:14:31,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 03:14:31,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:31,668 INFO L422 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] [2020-11-28 03:14:31,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:14:31,669 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:31,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:31,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1823541737, now seen corresponding path program 1 times [2020-11-28 03:14:31,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:31,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674979285] [2020-11-28 03:14:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:31,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674979285] [2020-11-28 03:14:31,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:31,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:31,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996338761] [2020-11-28 03:14:31,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:31,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:31,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:31,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:31,791 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand 3 states. [2020-11-28 03:14:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:31,839 INFO L93 Difference]: Finished difference Result 145 states and 214 transitions. [2020-11-28 03:14:31,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:31,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-28 03:14:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:31,841 INFO L225 Difference]: With dead ends: 145 [2020-11-28 03:14:31,841 INFO L226 Difference]: Without dead ends: 80 [2020-11-28 03:14:31,842 INFO L677 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 [2020-11-28 03:14:31,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-11-28 03:14:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2020-11-28 03:14:31,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-11-28 03:14:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 110 transitions. [2020-11-28 03:14:31,850 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 110 transitions. Word has length 25 [2020-11-28 03:14:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:31,851 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 110 transitions. [2020-11-28 03:14:31,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 110 transitions. [2020-11-28 03:14:31,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:14:31,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:31,852 INFO L422 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, 1, 1, 1] [2020-11-28 03:14:31,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:14:31,853 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:31,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:31,853 INFO L82 PathProgramCache]: Analyzing trace with hash -920121944, now seen corresponding path program 1 times [2020-11-28 03:14:31,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:31,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284026489] [2020-11-28 03:14:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:31,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284026489] [2020-11-28 03:14:31,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:31,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:31,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970012275] [2020-11-28 03:14:31,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:31,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:31,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:31,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:31,970 INFO L87 Difference]: Start difference. First operand 78 states and 110 transitions. Second operand 5 states. [2020-11-28 03:14:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:32,091 INFO L93 Difference]: Finished difference Result 204 states and 285 transitions. [2020-11-28 03:14:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:32,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:14:32,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:32,093 INFO L225 Difference]: With dead ends: 204 [2020-11-28 03:14:32,093 INFO L226 Difference]: Without dead ends: 132 [2020-11-28 03:14:32,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:14:32,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-28 03:14:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 87. [2020-11-28 03:14:32,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-28 03:14:32,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2020-11-28 03:14:32,111 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 31 [2020-11-28 03:14:32,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:32,112 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2020-11-28 03:14:32,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:32,112 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2020-11-28 03:14:32,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-28 03:14:32,114 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:32,114 INFO L422 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, 1, 1, 1] [2020-11-28 03:14:32,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:14:32,114 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:32,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:32,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1742389099, now seen corresponding path program 1 times [2020-11-28 03:14:32,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:32,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168657479] [2020-11-28 03:14:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:32,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168657479] [2020-11-28 03:14:32,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:32,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:32,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671754356] [2020-11-28 03:14:32,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:32,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:32,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:32,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:32,242 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 5 states. [2020-11-28 03:14:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:32,367 INFO L93 Difference]: Finished difference Result 431 states and 600 transitions. [2020-11-28 03:14:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:14:32,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-28 03:14:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:32,370 INFO L225 Difference]: With dead ends: 431 [2020-11-28 03:14:32,370 INFO L226 Difference]: Without dead ends: 350 [2020-11-28 03:14:32,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-11-28 03:14:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 162. [2020-11-28 03:14:32,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-28 03:14:32,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 221 transitions. [2020-11-28 03:14:32,418 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 221 transitions. Word has length 31 [2020-11-28 03:14:32,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:32,422 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 221 transitions. [2020-11-28 03:14:32,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:32,422 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 221 transitions. [2020-11-28 03:14:32,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:14:32,428 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:32,428 INFO L422 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, 1, 1, 1, 1] [2020-11-28 03:14:32,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:14:32,429 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:32,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:32,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1092376181, now seen corresponding path program 1 times [2020-11-28 03:14:32,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:32,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268319169] [2020-11-28 03:14:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:32,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:32,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268319169] [2020-11-28 03:14:32,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:32,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:14:32,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422312705] [2020-11-28 03:14:32,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:32,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:32,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:32,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:32,514 INFO L87 Difference]: Start difference. First operand 162 states and 221 transitions. Second operand 5 states. [2020-11-28 03:14:32,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:32,674 INFO L93 Difference]: Finished difference Result 470 states and 642 transitions. [2020-11-28 03:14:32,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 03:14:32,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:14:32,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:32,678 INFO L225 Difference]: With dead ends: 470 [2020-11-28 03:14:32,678 INFO L226 Difference]: Without dead ends: 468 [2020-11-28 03:14:32,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-28 03:14:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2020-11-28 03:14:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 162. [2020-11-28 03:14:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-28 03:14:32,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 220 transitions. [2020-11-28 03:14:32,703 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 220 transitions. Word has length 32 [2020-11-28 03:14:32,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:32,703 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 220 transitions. [2020-11-28 03:14:32,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:32,704 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 220 transitions. [2020-11-28 03:14:32,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:14:32,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:32,707 INFO L422 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, 1, 1, 1, 1] [2020-11-28 03:14:32,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:14:32,708 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:32,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1963161872, now seen corresponding path program 1 times [2020-11-28 03:14:32,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:32,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419353051] [2020-11-28 03:14:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:32,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419353051] [2020-11-28 03:14:32,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:32,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:14:32,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17123331] [2020-11-28 03:14:32,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:14:32,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:32,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:14:32,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:14:32,782 INFO L87 Difference]: Start difference. First operand 162 states and 220 transitions. Second operand 5 states. [2020-11-28 03:14:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:32,894 INFO L93 Difference]: Finished difference Result 428 states and 574 transitions. [2020-11-28 03:14:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 03:14:32,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-28 03:14:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:32,897 INFO L225 Difference]: With dead ends: 428 [2020-11-28 03:14:32,897 INFO L226 Difference]: Without dead ends: 272 [2020-11-28 03:14:32,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:14:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-28 03:14:32,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 174. [2020-11-28 03:14:32,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-28 03:14:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 232 transitions. [2020-11-28 03:14:32,917 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 232 transitions. Word has length 32 [2020-11-28 03:14:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:32,917 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 232 transitions. [2020-11-28 03:14:32,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:14:32,917 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 232 transitions. [2020-11-28 03:14:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-28 03:14:32,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:32,920 INFO L422 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, 1, 1, 1, 1] [2020-11-28 03:14:32,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:14:32,921 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:32,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1704996434, now seen corresponding path program 1 times [2020-11-28 03:14:32,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:32,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470827339] [2020-11-28 03:14:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:14:32,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:14:32,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470827339] [2020-11-28 03:14:32,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:14:32,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:14:32,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930766071] [2020-11-28 03:14:32,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:14:32,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:14:32,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:14:32,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:14:32,980 INFO L87 Difference]: Start difference. First operand 174 states and 232 transitions. Second operand 3 states. [2020-11-28 03:14:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:14:33,018 INFO L93 Difference]: Finished difference Result 394 states and 524 transitions. [2020-11-28 03:14:33,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:14:33,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-28 03:14:33,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:14:33,020 INFO L225 Difference]: With dead ends: 394 [2020-11-28 03:14:33,020 INFO L226 Difference]: Without dead ends: 226 [2020-11-28 03:14:33,021 INFO L677 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 [2020-11-28 03:14:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-28 03:14:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-28 03:14:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-28 03:14:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 294 transitions. [2020-11-28 03:14:33,041 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 294 transitions. Word has length 32 [2020-11-28 03:14:33,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:14:33,042 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 294 transitions. [2020-11-28 03:14:33,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:14:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 294 transitions. [2020-11-28 03:14:33,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 03:14:33,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:14:33,043 INFO L422 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, 1, 1, 1, 1, 1] [2020-11-28 03:14:33,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 03:14:33,043 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:14:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:14:33,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1518924332, now seen corresponding path program 1 times [2020-11-28 03:14:33,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:14:33,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216651807] [2020-11-28 03:14:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:14:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:33,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:14:33,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:14:33,260 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:14:33,260 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:14:33,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:14:33,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:14:33 BoogieIcfgContainer [2020-11-28 03:14:33,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:14:33,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:14:33,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:14:33,388 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:14:33,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:30" (3/4) ... [2020-11-28 03:14:33,392 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:14:33,512 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_49fc4c40-f751-4d8c-804e-e329a5eca2a7/bin/uautomizer/witness.graphml [2020-11-28 03:14:33,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:14:33,517 INFO L168 Benchmark]: Toolchain (without parser) took 4856.73 ms. Allocated memory was 92.3 MB in the beginning and 148.9 MB in the end (delta: 56.6 MB). Free memory was 62.8 MB in the beginning and 84.4 MB in the end (delta: -21.6 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,517 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 51.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:14:33,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 586.64 ms. Allocated memory is still 92.3 MB. Free memory was 62.6 MB in the beginning and 57.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.83 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 52.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,519 INFO L168 Benchmark]: Boogie Preprocessor took 59.83 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 49.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,519 INFO L168 Benchmark]: RCFGBuilder took 1321.02 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 49.3 MB in the beginning and 53.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,520 INFO L168 Benchmark]: TraceAbstraction took 2630.16 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 52.4 MB in the beginning and 98.1 MB in the end (delta: -45.7 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,520 INFO L168 Benchmark]: Witness Printer took 125.24 ms. Allocated memory is still 148.9 MB. Free memory was 98.1 MB in the beginning and 84.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:14:33,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 51.6 MB in the beginning and 51.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 586.64 ms. Allocated memory is still 92.3 MB. Free memory was 62.6 MB in the beginning and 57.9 MB in the end (delta: 4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.83 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 52.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.83 ms. Allocated memory is still 92.3 MB. Free memory was 52.9 MB in the beginning and 49.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1321.02 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 49.3 MB in the beginning and 53.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2630.16 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 52.4 MB in the beginning and 98.1 MB in the end (delta: -45.7 MB). Peak memory consumption was 48.5 MB. Max. memory is 16.1 GB. * Witness Printer took 125.24 ms. Allocated memory is still 148.9 MB. Free memory was 98.1 MB in the beginning and 84.4 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L693] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L891] int waterLevel = 1; [L892] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; [L492] retValue_acc = 1 [L493] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] COND TRUE waterLevel < 2 [L910] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L921] COND FALSE !(\read(methaneLevelCritical)) [L924] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) [L458] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L239] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L246] COND TRUE \read(systemActive) [L320] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L323] COND FALSE !(\read(pumpRunning)) [L294] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L297] COND FALSE !(\read(pumpRunning)) [L268] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L271] COND TRUE ! pumpRunning [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L971] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L974] COND FALSE !(waterLevel < 2) [L978] retValue_acc = 0 [L979] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L423] tmp = isHighWaterSensorDry() [L425] COND FALSE !(\read(tmp)) [L428] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L273] tmp = isHighWaterLevel() [L275] COND TRUE \read(tmp) [L348] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L499] int tmp ; [L500] int tmp___0 ; [L930] int retValue_acc ; [L933] retValue_acc = methaneLevelCritical [L934] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L504] tmp = isMethaneLevelCritical() [L506] COND TRUE \read(tmp) [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] tmp___0 = isPumpRunning() [L510] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product54.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 192 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1137 SDtfs, 1257 SDslu, 1252 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 639 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 271 NumberOfCodeBlocks, 271 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 229 ConstructedInterpolants, 0 QuantifiedInterpolants, 12403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...