./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cf24413c974632111c219883460f59cc521163aa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-20 01:43:33,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:33,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:33,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:33,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:33,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:33,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:33,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:33,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:33,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:33,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:33,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:33,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:33,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:33,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:33,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:33,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:33,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:33,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:33,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:33,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:33,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:33,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:33,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:33,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:33,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:33,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:33,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:33,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:33,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:33,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:33,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:33,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:33,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:33,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:33,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:33,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:33,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:33,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:33,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:33,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:33,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:33,304 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:33,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:33,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:33,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:33,309 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:33,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:33,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:33,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:33,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:33,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:33,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:33,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:33,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:33,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:33,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:33,313 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:33,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:33,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:33,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:33,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:33,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:33,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:33,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:33,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:33,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:33,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:33,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:33,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:33,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:33,317 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> cf24413c974632111c219883460f59cc521163aa [2020-10-20 01:43:33,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:33,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:33,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:33,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:33,557 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:33,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-10-20 01:43:33,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0075df753/de6d7350009f40b1bd11a6347a3c5844/FLAGbfabb429e [2020-10-20 01:43:34,266 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:34,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2020-10-20 01:43:34,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0075df753/de6d7350009f40b1bd11a6347a3c5844/FLAGbfabb429e [2020-10-20 01:43:34,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0075df753/de6d7350009f40b1bd11a6347a3c5844 [2020-10-20 01:43:34,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:34,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:34,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:34,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:34,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:34,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:34" (1/1) ... [2020-10-20 01:43:34,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2195f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:34, skipping insertion in model container [2020-10-20 01:43:34,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:34" (1/1) ... [2020-10-20 01:43:34,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:34,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:34,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:34,949 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:35,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:35,091 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:35,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35 WrapperNode [2020-10-20 01:43:35,092 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:35,093 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:35,093 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:35,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:35,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:35,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:35,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:35,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:35,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,186 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... [2020-10-20 01:43:35,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:35,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:35,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:35,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:35,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-20 01:43:35,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:35,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:35,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:36,337 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:36,338 INFO L298 CfgBuilder]: Removed 210 assume(true) statements. [2020-10-20 01:43:36,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:36 BoogieIcfgContainer [2020-10-20 01:43:36,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:36,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:36,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:36,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:36,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:34" (1/3) ... [2020-10-20 01:43:36,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65579e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:36, skipping insertion in model container [2020-10-20 01:43:36,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:35" (2/3) ... [2020-10-20 01:43:36,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65579e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:36, skipping insertion in model container [2020-10-20 01:43:36,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:36" (3/3) ... [2020-10-20 01:43:36,350 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2020-10-20 01:43:36,362 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:36,370 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:36,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:36,411 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:36,412 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:36,412 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:36,412 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:36,413 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:36,413 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:36,413 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:36,413 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:36,439 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-20 01:43:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:36,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:36,449 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:36,450 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:36,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:36,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2125503066, now seen corresponding path program 1 times [2020-10-20 01:43:36,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:36,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411469726] [2020-10-20 01:43:36,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:36,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411469726] [2020-10-20 01:43:36,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:36,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:36,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300045619] [2020-10-20 01:43:36,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:36,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:36,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:36,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:36,763 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2020-10-20 01:43:36,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:36,856 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2020-10-20 01:43:36,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:36,858 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:36,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:36,870 INFO L225 Difference]: With dead ends: 283 [2020-10-20 01:43:36,871 INFO L226 Difference]: Without dead ends: 139 [2020-10-20 01:43:36,875 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 [2020-10-20 01:43:36,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-20 01:43:36,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-10-20 01:43:36,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-20 01:43:36,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2020-10-20 01:43:36,917 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2020-10-20 01:43:36,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:36,918 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2020-10-20 01:43:36,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:36,918 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2020-10-20 01:43:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:36,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:36,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:36,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:36,920 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:36,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:36,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1757209084, now seen corresponding path program 1 times [2020-10-20 01:43:36,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:36,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407691879] [2020-10-20 01:43:36,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:37,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407691879] [2020-10-20 01:43:37,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:37,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:37,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44927272] [2020-10-20 01:43:37,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:37,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:37,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:37,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:37,090 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2020-10-20 01:43:37,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:37,103 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2020-10-20 01:43:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:37,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:37,108 INFO L225 Difference]: With dead ends: 139 [2020-10-20 01:43:37,108 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 01:43:37,110 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 [2020-10-20 01:43:37,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 01:43:37,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 01:43:37,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 01:43:37,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2020-10-20 01:43:37,118 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2020-10-20 01:43:37,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:37,121 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-10-20 01:43:37,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:37,121 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2020-10-20 01:43:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:37,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:37,123 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] [2020-10-20 01:43:37,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:37,124 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2020-10-20 01:43:37,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:37,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606793701] [2020-10-20 01:43:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:37,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606793701] [2020-10-20 01:43:37,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:37,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 01:43:37,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920849792] [2020-10-20 01:43:37,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:37,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:37,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:37,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:37,270 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 5 states. [2020-10-20 01:43:37,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:37,339 INFO L93 Difference]: Finished difference Result 133 states and 195 transitions. [2020-10-20 01:43:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:43:37,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-20 01:43:37,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:37,341 INFO L225 Difference]: With dead ends: 133 [2020-10-20 01:43:37,341 INFO L226 Difference]: Without dead ends: 82 [2020-10-20 01:43:37,342 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 [2020-10-20 01:43:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-20 01:43:37,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-10-20 01:43:37,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-20 01:43:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2020-10-20 01:43:37,352 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2020-10-20 01:43:37,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:37,352 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2020-10-20 01:43:37,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:37,352 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2020-10-20 01:43:37,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:37,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:37,354 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] [2020-10-20 01:43:37,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:37,354 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:37,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:37,354 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2020-10-20 01:43:37,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:37,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834169203] [2020-10-20 01:43:37,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:37,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:37,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834169203] [2020-10-20 01:43:37,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:37,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:37,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664405385] [2020-10-20 01:43:37,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:37,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:37,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:37,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:37,492 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2020-10-20 01:43:37,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:37,573 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2020-10-20 01:43:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:37,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 01:43:37,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:37,575 INFO L225 Difference]: With dead ends: 173 [2020-10-20 01:43:37,575 INFO L226 Difference]: Without dead ends: 101 [2020-10-20 01:43:37,576 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 [2020-10-20 01:43:37,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-20 01:43:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2020-10-20 01:43:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-10-20 01:43:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2020-10-20 01:43:37,602 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2020-10-20 01:43:37,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:37,603 INFO L481 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2020-10-20 01:43:37,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:37,604 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2020-10-20 01:43:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-20 01:43:37,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:37,606 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] [2020-10-20 01:43:37,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:37,607 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:37,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:37,607 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2020-10-20 01:43:37,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:37,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932431737] [2020-10-20 01:43:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:43:37,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932431737] [2020-10-20 01:43:37,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:37,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:37,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872904301] [2020-10-20 01:43:37,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:37,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:37,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:37,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:37,732 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2020-10-20 01:43:37,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:37,887 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2020-10-20 01:43:37,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:37,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-20 01:43:37,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:37,891 INFO L225 Difference]: With dead ends: 515 [2020-10-20 01:43:37,891 INFO L226 Difference]: Without dead ends: 422 [2020-10-20 01:43:37,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 01:43:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-20 01:43:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2020-10-20 01:43:37,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-20 01:43:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2020-10-20 01:43:37,915 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2020-10-20 01:43:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:37,915 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2020-10-20 01:43:37,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:37,915 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2020-10-20 01:43:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-20 01:43:37,917 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:37,917 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] [2020-10-20 01:43:37,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:37,917 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:37,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2020-10-20 01:43:37,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:37,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273308956] [2020-10-20 01:43:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:37,988 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:38,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:38,130 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:38,130 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:38,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 01:43:38,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:38 BoogieIcfgContainer [2020-10-20 01:43:38,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:38,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:38,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:38,249 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:38,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:36" (3/4) ... [2020-10-20 01:43:38,254 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:38,414 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:38,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:38,416 INFO L168 Benchmark]: Toolchain (without parser) took 3947.09 ms. Allocated memory was 43.5 MB in the beginning and 65.5 MB in the end (delta: 22.0 MB). Free memory was 22.7 MB in the beginning and 41.5 MB in the end (delta: -18.8 MB). Peak memory consumption was 31.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,417 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.50 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.8 MB in the beginning and 27.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.81 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 23.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,418 INFO L168 Benchmark]: Boogie Preprocessor took 61.88 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 19.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,418 INFO L168 Benchmark]: RCFGBuilder took 1110.32 ms. Allocated memory was 46.1 MB in the beginning and 51.9 MB in the end (delta: 5.8 MB). Free memory was 19.7 MB in the beginning and 30.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,419 INFO L168 Benchmark]: TraceAbstraction took 1904.98 ms. Allocated memory was 51.9 MB in the beginning and 60.8 MB in the end (delta: 8.9 MB). Free memory was 30.1 MB in the beginning and 19.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,419 INFO L168 Benchmark]: Witness Printer took 167.79 ms. Allocated memory was 60.8 MB in the beginning and 65.5 MB in the end (delta: 4.7 MB). Free memory was 19.0 MB in the beginning and 41.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:38,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 32.5 MB. Free memory was 11.6 MB in the beginning and 11.5 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 617.50 ms. Allocated memory was 43.5 MB in the beginning and 46.1 MB in the end (delta: 2.6 MB). Free memory was 21.8 MB in the beginning and 27.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 74.81 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 23.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 61.88 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 19.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1110.32 ms. Allocated memory was 46.1 MB in the beginning and 51.9 MB in the end (delta: 5.8 MB). Free memory was 19.7 MB in the beginning and 30.5 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1904.98 ms. Allocated memory was 51.9 MB in the beginning and 60.8 MB in the end (delta: 8.9 MB). Free memory was 30.1 MB in the beginning and 19.0 MB in the end (delta: 11.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 14.3 GB. * Witness Printer took 167.79 ms. Allocated memory was 60.8 MB in the beginning and 65.5 MB in the end (delta: 4.7 MB). Free memory was 19.0 MB in the beginning and 41.5 MB in the end (delta: -22.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 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: [L126] int pumpRunning = 0; [L127] int systemActive = 1; [L570] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; [L917] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L990] int retValue_acc ; [L991] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L805] int retValue_acc ; [L808] retValue_acc = 1 [L809] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L997] tmp = valid_product() [L999] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND FALSE !(\read(tmp___2)) [L94] tmp___1 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L134] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L141] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L368] int tmp ; [L369] int tmp___0 ; [L370] int tmp___1 ; [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L374] tmp = isMethaneLevelCritical() [L376] COND FALSE !(\read(tmp)) [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L380] tmp___0 = getWaterLevel() [L382] COND TRUE tmp___0 == 2 [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L384] tmp___1 = isPumpRunning() [L386] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product60.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 146 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 753 SDslu, 413 SDs, 0 SdLazy, 67 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 261 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...