./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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_1.5.800.v20200727-1323.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_product59.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 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 23:06:48,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:06:48,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:06:48,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:06:48,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:06:48,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:06:48,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:06:48,428 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:06:48,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:06:48,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:06:48,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:06:48,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:06:48,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:06:48,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:06:48,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:06:48,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:06:48,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:06:48,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:06:48,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:06:48,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:06:48,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:06:48,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:06:48,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:06:48,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:06:48,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:06:48,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:06:48,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:06:48,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:06:48,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:06:48,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:06:48,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:06:48,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:06:48,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:06:48,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:06:48,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:06:48,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:06:48,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:06:48,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:06:48,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:06:48,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:06:48,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:06:48,509 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:06:48,566 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:06:48,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:06:48,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:06:48,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:06:48,569 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:06:48,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:06:48,570 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:06:48,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:06:48,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:06:48,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:06:48,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:06:48,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:06:48,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:06:48,572 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:06:48,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:06:48,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:06:48,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:06:48,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:06:48,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:06:48,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:06:48,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:06:48,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:06:48,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:06:48,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:06:48,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:06:48,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:06:48,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:06:48,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:06:48,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:06:48,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 [2020-10-25 23:06:48,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:06:48,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:06:48,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:06:48,982 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:06:48,983 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:06:48,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2020-10-25 23:06:49,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad1b1e45/9e7da2117ae743e183ddbd0266a5e054/FLAG9ba23e76a [2020-10-25 23:06:49,822 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:06:49,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2020-10-25 23:06:49,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad1b1e45/9e7da2117ae743e183ddbd0266a5e054/FLAG9ba23e76a [2020-10-25 23:06:50,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ad1b1e45/9e7da2117ae743e183ddbd0266a5e054 [2020-10-25 23:06:50,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:06:50,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:06:50,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:50,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:06:50,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:06:50,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:50,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284a03cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50, skipping insertion in model container [2020-10-25 23:06:50,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:50,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:06:50,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:06:50,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:50,619 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:06:50,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:06:50,883 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:06:50,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50 WrapperNode [2020-10-25 23:06:50,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:06:50,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:50,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:06:50,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:06:50,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:50,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:06:51,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:06:51,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:06:51,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:06:51,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (1/1) ... [2020-10-25 23:06:51,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:06:51,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:06:51,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:06:51,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:06:51,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (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 [2020-10-25 23:06:51,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:06:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:06:51,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:06:51,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:06:52,465 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:06:52,465 INFO L298 CfgBuilder]: Removed 208 assume(true) statements. [2020-10-25 23:06:52,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:52 BoogieIcfgContainer [2020-10-25 23:06:52,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:06:52,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:06:52,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:06:52,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:06:52,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:06:50" (1/3) ... [2020-10-25 23:06:52,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106f98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:52, skipping insertion in model container [2020-10-25 23:06:52,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:06:50" (2/3) ... [2020-10-25 23:06:52,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@106f98c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:06:52, skipping insertion in model container [2020-10-25 23:06:52,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:52" (3/3) ... [2020-10-25 23:06:52,476 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2020-10-25 23:06:52,489 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:06:52,495 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:06:52,509 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:06:52,539 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:06:52,539 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:06:52,539 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:06:52,539 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:06:52,539 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:06:52,539 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:06:52,540 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:06:52,540 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:06:52,560 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-25 23:06:52,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-25 23:06:52,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:52,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:52,569 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:52,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1113563930, now seen corresponding path program 1 times [2020-10-25 23:06:52,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:52,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633363440] [2020-10-25 23:06:52,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:52,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:52,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633363440] [2020-10-25 23:06:52,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:52,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:52,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514079620] [2020-10-25 23:06:52,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:06:52,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:52,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:06:52,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:06:52,920 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2020-10-25 23:06:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:52,992 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2020-10-25 23:06:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:06:52,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-25 23:06:52,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:53,011 INFO L225 Difference]: With dead ends: 283 [2020-10-25 23:06:53,011 INFO L226 Difference]: Without dead ends: 139 [2020-10-25 23:06:53,016 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 [2020-10-25 23:06:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-10-25 23:06:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-10-25 23:06:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-25 23:06:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2020-10-25 23:06:53,071 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2020-10-25 23:06:53,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:53,072 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2020-10-25 23:06:53,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:06:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2020-10-25 23:06:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-25 23:06:53,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:53,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:06:53,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:06:53,075 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:53,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:53,076 INFO L82 PathProgramCache]: Analyzing trace with hash -616187229, now seen corresponding path program 1 times [2020-10-25 23:06:53,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:53,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133228871] [2020-10-25 23:06:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:53,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133228871] [2020-10-25 23:06:53,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:53,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:06:53,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471618029] [2020-10-25 23:06:53,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:53,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:53,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:53,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:53,241 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2020-10-25 23:06:53,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:53,283 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2020-10-25 23:06:53,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:53,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-25 23:06:53,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:53,287 INFO L225 Difference]: With dead ends: 139 [2020-10-25 23:06:53,287 INFO L226 Difference]: Without dead ends: 57 [2020-10-25 23:06:53,290 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 [2020-10-25 23:06:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-25 23:06:53,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-25 23:06:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-25 23:06:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2020-10-25 23:06:53,306 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2020-10-25 23:06:53,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:53,306 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2020-10-25 23:06:53,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2020-10-25 23:06:53,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:06:53,309 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:53,309 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] [2020-10-25 23:06:53,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:06:53,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:53,313 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2020-10-25 23:06:53,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:53,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131994799] [2020-10-25 23:06:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:53,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131994799] [2020-10-25 23:06:53,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:53,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:53,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201953548] [2020-10-25 23:06:53,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:53,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:53,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:53,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:53,478 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 3 states. [2020-10-25 23:06:53,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:53,527 INFO L93 Difference]: Finished difference Result 159 states and 234 transitions. [2020-10-25 23:06:53,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:53,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:06:53,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:53,530 INFO L225 Difference]: With dead ends: 159 [2020-10-25 23:06:53,532 INFO L226 Difference]: Without dead ends: 108 [2020-10-25 23:06:53,533 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 [2020-10-25 23:06:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-25 23:06:53,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2020-10-25 23:06:53,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-10-25 23:06:53,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 153 transitions. [2020-10-25 23:06:53,562 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 153 transitions. Word has length 24 [2020-10-25 23:06:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:53,563 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 153 transitions. [2020-10-25 23:06:53,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 153 transitions. [2020-10-25 23:06:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:06:53,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:53,564 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] [2020-10-25 23:06:53,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:06:53,565 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:53,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2020-10-25 23:06:53,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:53,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519814452] [2020-10-25 23:06:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:53,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519814452] [2020-10-25 23:06:53,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:53,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:06:53,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142525334] [2020-10-25 23:06:53,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:06:53,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:53,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:06:53,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:06:53,627 INFO L87 Difference]: Start difference. First operand 104 states and 153 transitions. Second operand 3 states. [2020-10-25 23:06:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:53,707 INFO L93 Difference]: Finished difference Result 247 states and 368 transitions. [2020-10-25 23:06:53,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:06:53,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-25 23:06:53,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:53,709 INFO L225 Difference]: With dead ends: 247 [2020-10-25 23:06:53,709 INFO L226 Difference]: Without dead ends: 149 [2020-10-25 23:06:53,710 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 [2020-10-25 23:06:53,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-25 23:06:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2020-10-25 23:06:53,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-25 23:06:53,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 213 transitions. [2020-10-25 23:06:53,725 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 213 transitions. Word has length 26 [2020-10-25 23:06:53,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:53,726 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 213 transitions. [2020-10-25 23:06:53,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:06:53,726 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 213 transitions. [2020-10-25 23:06:53,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-25 23:06:53,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:53,728 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] [2020-10-25 23:06:53,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:06:53,728 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:53,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2020-10-25 23:06:53,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:53,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138843426] [2020-10-25 23:06:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:06:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:06:53,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138843426] [2020-10-25 23:06:53,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:06:53,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:06:53,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242795717] [2020-10-25 23:06:53,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:06:53,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:06:53,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:06:53,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:06:53,818 INFO L87 Difference]: Start difference. First operand 147 states and 213 transitions. Second operand 5 states. [2020-10-25 23:06:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:06:54,018 INFO L93 Difference]: Finished difference Result 773 states and 1137 transitions. [2020-10-25 23:06:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-25 23:06:54,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-25 23:06:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:06:54,026 INFO L225 Difference]: With dead ends: 773 [2020-10-25 23:06:54,026 INFO L226 Difference]: Without dead ends: 632 [2020-10-25 23:06:54,029 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 [2020-10-25 23:06:54,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-10-25 23:06:54,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 244. [2020-10-25 23:06:54,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-10-25 23:06:54,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 344 transitions. [2020-10-25 23:06:54,082 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 344 transitions. Word has length 27 [2020-10-25 23:06:54,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:06:54,082 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 344 transitions. [2020-10-25 23:06:54,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:06:54,083 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 344 transitions. [2020-10-25 23:06:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-25 23:06:54,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:06:54,084 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] [2020-10-25 23:06:54,085 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:06:54,085 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:06:54,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:06:54,085 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2020-10-25 23:06:54,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:06:54,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500535653] [2020-10-25 23:06:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:06:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:54,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:06:54,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:06:54,354 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:06:54,355 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:06:54,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:06:54,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:06:54 BoogieIcfgContainer [2020-10-25 23:06:54,492 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:06:54,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:06:54,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:06:54,493 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:06:54,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:06:52" (3/4) ... [2020-10-25 23:06:54,496 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:06:54,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:06:54,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:06:54,591 INFO L168 Benchmark]: Toolchain (without parser) took 4457.47 ms. Allocated memory was 50.3 MB in the beginning and 88.1 MB in the end (delta: 37.7 MB). Free memory was 26.5 MB in the beginning and 46.3 MB in the end (delta: -19.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,592 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.8 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:06:54,593 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.08 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 29.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.72 ms. Allocated memory is still 50.3 MB. Free memory was 29.4 MB in the beginning and 25.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,594 INFO L168 Benchmark]: Boogie Preprocessor took 85.64 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 22.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,595 INFO L168 Benchmark]: RCFGBuilder took 1341.81 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 34.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,596 INFO L168 Benchmark]: TraceAbstraction took 2022.88 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 33.7 MB in the beginning and 58.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,596 INFO L168 Benchmark]: Witness Printer took 96.39 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 46.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:06:54,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.8 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 746.08 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 29.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 150.72 ms. Allocated memory is still 50.3 MB. Free memory was 29.4 MB in the beginning and 25.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.64 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 22.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1341.81 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 34.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2022.88 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 33.7 MB in the beginning and 58.5 MB in the end (delta: -24.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 96.39 ms. Allocated memory is still 88.1 MB. Free memory was 58.5 MB in the beginning and 46.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int waterLevel = 1; [L417] int methaneLevelCritical = 0; [L519] int cleanupTimeShifts = 4; [L771] int pumpRunning = 0; [L772] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L599] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] int retValue_acc ; [L650] retValue_acc = 1 [L651] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] tmp = valid_product() [L607] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L703] int splverifierCounter ; [L704] int tmp ; [L705] int tmp___0 ; [L706] int tmp___1 ; [L707] int tmp___2 ; [L710] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L714] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] tmp = __VERIFIER_nondet_int() [L722] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L434] COND TRUE waterLevel < 2 [L435] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] tmp___0 = __VERIFIER_nondet_int() [L732] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] tmp___2 = __VERIFIER_nondet_int() [L742] COND FALSE !(\read(tmp___2)) [L746] tmp___1 = __VERIFIER_nondet_int() [L748] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L989] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L996] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L778] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L785] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L659] int tmp ; [L660] int tmp___0 ; [L661] int tmp___1 ; [L455] int retValue_acc ; [L458] retValue_acc = methaneLevelCritical [L459] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L665] tmp = isMethaneLevelCritical() [L667] COND FALSE !(\read(tmp)) [L487] int retValue_acc ; [L490] retValue_acc = waterLevel [L491] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L671] tmp___0 = getWaterLevel() [L673] COND TRUE tmp___0 == 2 [L903] int retValue_acc ; [L906] retValue_acc = pumpRunning [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] tmp___1 = isPumpRunning() [L677] 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_product59.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: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 583 SDtfs, 512 SDslu, 450 SDs, 0 SdLazy, 65 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 394 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 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...