./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.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_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/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 ad65d1d3307a121fce5b7d95113e2f3f66b04b5a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 14:56:03,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:56:03,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:56:03,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:56:03,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:56:03,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:56:03,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:56:03,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:56:03,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:56:03,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:56:03,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:56:03,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:56:03,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:56:03,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:56:03,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:56:03,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:56:03,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:56:03,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:56:03,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:56:03,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:56:03,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:56:03,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:56:03,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:56:03,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:56:03,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:56:03,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:56:03,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:56:03,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:56:03,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:56:03,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:56:03,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:56:03,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:56:03,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:56:03,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:56:03,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:56:03,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:56:03,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:56:03,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:56:03,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:56:03,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:56:03,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:56:03,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:56:03,280 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:56:03,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:56:03,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:56:03,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:56:03,281 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:56:03,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:56:03,281 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:56:03,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:56:03,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:56:03,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:56:03,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:56:03,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:56:03,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:56:03,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:56:03,284 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_7b81550d-f5b2-4309-8804-c54c25adeb86/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 -> ad65d1d3307a121fce5b7d95113e2f3f66b04b5a [2019-12-07 14:56:03,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:56:03,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:56:03,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:56:03,398 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:56:03,398 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:56:03,399 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 14:56:03,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/data/b265e02fb/2b4dd4a7bca14559984d328e77c2f60d/FLAGa5811f89e [2019-12-07 14:56:03,926 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:56:03,926 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2019-12-07 14:56:03,935 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/data/b265e02fb/2b4dd4a7bca14559984d328e77c2f60d/FLAGa5811f89e [2019-12-07 14:56:04,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/data/b265e02fb/2b4dd4a7bca14559984d328e77c2f60d [2019-12-07 14:56:04,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:56:04,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:56:04,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:56:04,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:56:04,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:56:04,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c18d95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04, skipping insertion in model container [2019-12-07 14:56:04,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:56:04,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:56:04,667 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:56:04,675 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:56:04,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:56:04,745 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:56:04,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04 WrapperNode [2019-12-07 14:56:04,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:56:04,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:56:04,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:56:04,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:56:04,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:56:04,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:56:04,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:56:04,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:56:04,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... [2019-12-07 14:56:04,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:56:04,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:56:04,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:56:04,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:56:04,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/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 14:56:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:56:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-07 14:56:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:56:04,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:56:05,306 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:56:05,307 INFO L287 CfgBuilder]: Removed 162 assume(true) statements. [2019-12-07 14:56:05,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:56:05 BoogieIcfgContainer [2019-12-07 14:56:05,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:56:05,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:56:05,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:56:05,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:56:05,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:56:04" (1/3) ... [2019-12-07 14:56:05,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3aec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:56:05, skipping insertion in model container [2019-12-07 14:56:05,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:56:04" (2/3) ... [2019-12-07 14:56:05,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a3aec02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:56:05, skipping insertion in model container [2019-12-07 14:56:05,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:56:05" (3/3) ... [2019-12-07 14:56:05,314 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2019-12-07 14:56:05,323 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:56:05,330 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:56:05,340 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:56:05,363 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:56:05,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:56:05,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:56:05,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:56:05,364 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:56:05,364 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:56:05,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:56:05,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:56:05,378 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-12-07 14:56:05,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 14:56:05,384 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:05,384 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:56:05,385 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:05,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:05,389 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2019-12-07 14:56:05,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:05,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495299664] [2019-12-07 14:56:05,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:05,573 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 14:56:05,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495299664] [2019-12-07 14:56:05,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:05,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:56:05,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656513380] [2019-12-07 14:56:05,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:56:05,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:05,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:56:05,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:56:05,589 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-12-07 14:56:05,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:05,613 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2019-12-07 14:56:05,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:56:05,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 14:56:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:05,623 INFO L225 Difference]: With dead ends: 220 [2019-12-07 14:56:05,623 INFO L226 Difference]: Without dead ends: 109 [2019-12-07 14:56:05,625 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 14:56:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-12-07 14:56:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-12-07 14:56:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-12-07 14:56:05,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2019-12-07 14:56:05,655 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2019-12-07 14:56:05,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:05,655 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2019-12-07 14:56:05,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:56:05,655 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2019-12-07 14:56:05,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:56:05,656 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:05,656 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:56:05,656 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:05,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2019-12-07 14:56:05,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:05,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148629416] [2019-12-07 14:56:05,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:05,715 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 14:56:05,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148629416] [2019-12-07 14:56:05,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:05,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:56:05,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726355803] [2019-12-07 14:56:05,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:56:05,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:05,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:56:05,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:56:05,718 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 3 states. [2019-12-07 14:56:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:05,730 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2019-12-07 14:56:05,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:56:05,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-07 14:56:05,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:05,731 INFO L225 Difference]: With dead ends: 109 [2019-12-07 14:56:05,732 INFO L226 Difference]: Without dead ends: 47 [2019-12-07 14:56:05,733 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 14:56:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-12-07 14:56:05,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2019-12-07 14:56:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2019-12-07 14:56:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2019-12-07 14:56:05,738 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2019-12-07 14:56:05,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:05,738 INFO L462 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2019-12-07 14:56:05,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:56:05,739 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2019-12-07 14:56:05,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 14:56:05,739 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:05,739 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] [2019-12-07 14:56:05,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:05,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:05,740 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2019-12-07 14:56:05,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:05,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687704586] [2019-12-07 14:56:05,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:05,803 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 14:56:05,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687704586] [2019-12-07 14:56:05,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:05,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 14:56:05,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950816716] [2019-12-07 14:56:05,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:56:05,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:05,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:56:05,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:56:05,804 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 5 states. [2019-12-07 14:56:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:05,854 INFO L93 Difference]: Finished difference Result 111 states and 164 transitions. [2019-12-07 14:56:05,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:56:05,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-12-07 14:56:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:05,856 INFO L225 Difference]: With dead ends: 111 [2019-12-07 14:56:05,856 INFO L226 Difference]: Without dead ends: 70 [2019-12-07 14:56:05,856 INFO L630 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 [2019-12-07 14:56:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-07 14:56:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2019-12-07 14:56:05,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-07 14:56:05,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 97 transitions. [2019-12-07 14:56:05,862 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 97 transitions. Word has length 22 [2019-12-07 14:56:05,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:05,863 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 97 transitions. [2019-12-07 14:56:05,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:56:05,863 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 97 transitions. [2019-12-07 14:56:05,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:56:05,864 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:05,864 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 14:56:05,864 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:05,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:05,864 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2019-12-07 14:56:05,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:05,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182058124] [2019-12-07 14:56:05,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:05,895 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 14:56:05,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182058124] [2019-12-07 14:56:05,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:05,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:56:05,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963548336] [2019-12-07 14:56:05,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:56:05,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:05,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:56:05,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:56:05,897 INFO L87 Difference]: Start difference. First operand 66 states and 97 transitions. Second operand 3 states. [2019-12-07 14:56:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:05,923 INFO L93 Difference]: Finished difference Result 147 states and 218 transitions. [2019-12-07 14:56:05,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:56:05,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-12-07 14:56:05,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:05,924 INFO L225 Difference]: With dead ends: 147 [2019-12-07 14:56:05,924 INFO L226 Difference]: Without dead ends: 87 [2019-12-07 14:56:05,925 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 14:56:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2019-12-07 14:56:05,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2019-12-07 14:56:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-12-07 14:56:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 121 transitions. [2019-12-07 14:56:05,931 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 121 transitions. Word has length 24 [2019-12-07 14:56:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:05,931 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 121 transitions. [2019-12-07 14:56:05,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:56:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 121 transitions. [2019-12-07 14:56:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:56:05,932 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:05,932 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:56:05,932 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:05,933 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2019-12-07 14:56:05,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:05,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296466889] [2019-12-07 14:56:05,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:05,970 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 14:56:05,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296466889] [2019-12-07 14:56:05,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:05,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:56:05,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576116557] [2019-12-07 14:56:05,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:56:05,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:05,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:56:05,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:56:05,972 INFO L87 Difference]: Start difference. First operand 85 states and 121 transitions. Second operand 5 states. [2019-12-07 14:56:06,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:06,046 INFO L93 Difference]: Finished difference Result 413 states and 601 transitions. [2019-12-07 14:56:06,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:56:06,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 14:56:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:06,048 INFO L225 Difference]: With dead ends: 413 [2019-12-07 14:56:06,048 INFO L226 Difference]: Without dead ends: 334 [2019-12-07 14:56:06,049 INFO L630 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 [2019-12-07 14:56:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-07 14:56:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 156. [2019-12-07 14:56:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 14:56:06,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 220 transitions. [2019-12-07 14:56:06,064 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 220 transitions. Word has length 25 [2019-12-07 14:56:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:06,065 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 220 transitions. [2019-12-07 14:56:06,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:56:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 220 transitions. [2019-12-07 14:56:06,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 14:56:06,066 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:06,066 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:56:06,066 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:06,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:06,066 INFO L82 PathProgramCache]: Analyzing trace with hash -649570909, now seen corresponding path program 1 times [2019-12-07 14:56:06,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:06,067 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454322040] [2019-12-07 14:56:06,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:06,109 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 14:56:06,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454322040] [2019-12-07 14:56:06,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:06,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:56:06,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41846596] [2019-12-07 14:56:06,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:56:06,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:06,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:56:06,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:56:06,111 INFO L87 Difference]: Start difference. First operand 156 states and 220 transitions. Second operand 5 states. [2019-12-07 14:56:06,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:06,214 INFO L93 Difference]: Finished difference Result 436 states and 619 transitions. [2019-12-07 14:56:06,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:56:06,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 14:56:06,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:06,216 INFO L225 Difference]: With dead ends: 436 [2019-12-07 14:56:06,216 INFO L226 Difference]: Without dead ends: 434 [2019-12-07 14:56:06,217 INFO L630 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 [2019-12-07 14:56:06,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2019-12-07 14:56:06,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 156. [2019-12-07 14:56:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 14:56:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-12-07 14:56:06,230 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 26 [2019-12-07 14:56:06,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:06,231 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-12-07 14:56:06,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:56:06,231 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-12-07 14:56:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:56:06,232 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:06,232 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, 1, 1, 1] [2019-12-07 14:56:06,232 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:06,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:06,232 INFO L82 PathProgramCache]: Analyzing trace with hash 108971892, now seen corresponding path program 1 times [2019-12-07 14:56:06,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:06,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036337907] [2019-12-07 14:56:06,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:06,269 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 14:56:06,269 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036337907] [2019-12-07 14:56:06,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:06,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 14:56:06,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154603200] [2019-12-07 14:56:06,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:56:06,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:06,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:56:06,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:56:06,271 INFO L87 Difference]: Start difference. First operand 156 states and 218 transitions. Second operand 5 states. [2019-12-07 14:56:06,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:06,328 INFO L93 Difference]: Finished difference Result 468 states and 648 transitions. [2019-12-07 14:56:06,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:56:06,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-07 14:56:06,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:06,330 INFO L225 Difference]: With dead ends: 468 [2019-12-07 14:56:06,330 INFO L226 Difference]: Without dead ends: 318 [2019-12-07 14:56:06,331 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:56:06,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-12-07 14:56:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 168. [2019-12-07 14:56:06,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-12-07 14:56:06,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 230 transitions. [2019-12-07 14:56:06,343 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 230 transitions. Word has length 31 [2019-12-07 14:56:06,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:06,343 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 230 transitions. [2019-12-07 14:56:06,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:56:06,344 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 230 transitions. [2019-12-07 14:56:06,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:56:06,344 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:06,345 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, 1, 1, 1] [2019-12-07 14:56:06,345 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:06,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:06,345 INFO L82 PathProgramCache]: Analyzing trace with hash -284055118, now seen corresponding path program 1 times [2019-12-07 14:56:06,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:06,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952041133] [2019-12-07 14:56:06,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:06,392 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 14:56:06,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952041133] [2019-12-07 14:56:06,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:06,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 14:56:06,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409219880] [2019-12-07 14:56:06,393 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:56:06,394 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:06,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:56:06,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:56:06,394 INFO L87 Difference]: Start difference. First operand 168 states and 230 transitions. Second operand 6 states. [2019-12-07 14:56:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:06,462 INFO L93 Difference]: Finished difference Result 502 states and 682 transitions. [2019-12-07 14:56:06,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:56:06,462 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-07 14:56:06,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:06,464 INFO L225 Difference]: With dead ends: 502 [2019-12-07 14:56:06,464 INFO L226 Difference]: Without dead ends: 340 [2019-12-07 14:56:06,464 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 14:56:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2019-12-07 14:56:06,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 176. [2019-12-07 14:56:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-12-07 14:56:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 238 transitions. [2019-12-07 14:56:06,476 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 238 transitions. Word has length 31 [2019-12-07 14:56:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:06,476 INFO L462 AbstractCegarLoop]: Abstraction has 176 states and 238 transitions. [2019-12-07 14:56:06,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:56:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 238 transitions. [2019-12-07 14:56:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-07 14:56:06,477 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:06,477 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, 1, 1, 1] [2019-12-07 14:56:06,477 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:06,477 INFO L82 PathProgramCache]: Analyzing trace with hash -25889680, now seen corresponding path program 1 times [2019-12-07 14:56:06,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:06,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462365935] [2019-12-07 14:56:06,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:56:06,500 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 14:56:06,500 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462365935] [2019-12-07 14:56:06,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:56:06,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:56:06,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800096332] [2019-12-07 14:56:06,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:56:06,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:56:06,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:56:06,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:56:06,501 INFO L87 Difference]: Start difference. First operand 176 states and 238 transitions. Second operand 3 states. [2019-12-07 14:56:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:56:06,535 INFO L93 Difference]: Finished difference Result 434 states and 586 transitions. [2019-12-07 14:56:06,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:56:06,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-12-07 14:56:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:56:06,537 INFO L225 Difference]: With dead ends: 434 [2019-12-07 14:56:06,538 INFO L226 Difference]: Without dead ends: 264 [2019-12-07 14:56:06,538 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 14:56:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-07 14:56:06,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-07 14:56:06,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-07 14:56:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 348 transitions. [2019-12-07 14:56:06,561 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 348 transitions. Word has length 31 [2019-12-07 14:56:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:56:06,562 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 348 transitions. [2019-12-07 14:56:06,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:56:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 348 transitions. [2019-12-07 14:56:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 14:56:06,563 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:56:06,563 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, 1, 1, 1, 1] [2019-12-07 14:56:06,563 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:56:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:56:06,564 INFO L82 PathProgramCache]: Analyzing trace with hash -2138649550, now seen corresponding path program 1 times [2019-12-07 14:56:06,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:56:06,564 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904632596] [2019-12-07 14:56:06,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:56:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:56:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:56:06,670 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:56:06,670 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:56:06,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:56:06 BoogieIcfgContainer [2019-12-07 14:56:06,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:56:06,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:56:06,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:56:06,731 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:56:06,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:56:05" (3/4) ... [2019-12-07 14:56:06,733 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:56:06,790 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b81550d-f5b2-4309-8804-c54c25adeb86/bin/uautomizer/witness.graphml [2019-12-07 14:56:06,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:56:06,792 INFO L168 Benchmark]: Toolchain (without parser) took 2369.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 944.7 MB in the beginning and 997.6 MB in the end (delta: -52.9 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,792 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:56:06,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,793 INFO L168 Benchmark]: Boogie Preprocessor took 31.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:56:06,793 INFO L168 Benchmark]: RCFGBuilder took 484.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,793 INFO L168 Benchmark]: TraceAbstraction took 1422.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,794 INFO L168 Benchmark]: Witness Printer took 59.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:56:06,795 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -166.1 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 484.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1422.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 490]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L352] int cleanupTimeShifts = 4; [L664] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L862] int waterLevel = 1; [L863] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L428] int retValue_acc ; [L429] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L477] int retValue_acc ; [L480] retValue_acc = 1 [L481] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] tmp = valid_product() [L437] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] int splverifierCounter ; [L258] int tmp ; [L259] int tmp___0 ; [L260] int tmp___1 ; [L261] int tmp___2 ; [L264] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L274] tmp = __VERIFIER_nondet_int() [L276] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L880] COND TRUE waterLevel < 2 [L881] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L284] tmp___0 = __VERIFIER_nondet_int() [L286] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] COND FALSE !(\read(methaneLevelCritical)) [L895] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L294] tmp___2 = __VERIFIER_nondet_int() [L296] COND TRUE \read(tmp___2) [L248] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L59] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L66] COND TRUE \read(systemActive) [L114] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(pumpRunning)) [L88] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L91] COND TRUE ! pumpRunning [L211] int retValue_acc ; [L212] int tmp ; [L213] int tmp___0 ; [L942] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L945] COND FALSE !(waterLevel < 2) [L949] retValue_acc = 0 [L950] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isHighWaterSensorDry() [L219] COND FALSE !(\read(tmp)) [L222] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L224] retValue_acc = tmp___0 [L225] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp = isHighWaterLevel() [L95] COND TRUE \read(tmp) [L142] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L327] int tmp ; [L328] int tmp___0 ; [L901] int retValue_acc ; [L904] retValue_acc = methaneLevelCritical [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L332] tmp = isMethaneLevelCritical() [L334] COND TRUE \read(tmp) [L166] int retValue_acc ; [L169] retValue_acc = pumpRunning [L170] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L336] tmp___0 = isPumpRunning() [L338] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L490] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Result: UNSAFE, OverallTime: 1.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 829 SDtfs, 1296 SDslu, 1083 SDs, 0 SdLazy, 160 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred 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, 776 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 10236 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...