./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product16.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_product16.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 09f621cb1974882ea9a195d7c88f0bd8b41755c2 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:43:04,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:43:04,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:43:04,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:43:04,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:43:04,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:43:04,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:43:04,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:43:04,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:43:04,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:43:04,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:43:04,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:43:04,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:43:04,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:43:04,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:43:04,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:43:04,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:43:04,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:43:04,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:43:04,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:43:04,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:43:04,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:43:04,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:43:04,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:43:04,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:43:04,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:43:04,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:43:04,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:43:04,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:43:04,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:43:04,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:43:04,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:43:04,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:43:04,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:43:04,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:43:04,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:43:04,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:43:04,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:43:04,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:43:04,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:43:04,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:43:04,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:43:04,828 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:43:04,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:43:04,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:43:04,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:43:04,830 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:43:04,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:43:04,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:43:04,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:43:04,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:43:04,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:43:04,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:43:04,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:43:04,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:43:04,831 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:43:04,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:43:04,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:43:04,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:43:04,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:43:04,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:43:04,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:43:04,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:43:04,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:43:04,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:43:04,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:43:04,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:43:04,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:43:04,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:43:04,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:43:04,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:43:04,834 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 -> 09f621cb1974882ea9a195d7c88f0bd8b41755c2 [2020-10-20 01:43:05,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:43:05,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:43:05,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:43:05,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:43:05,052 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:43:05,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-10-20 01:43:05,130 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d194b6a/80ade67e74b24e548351158369f001b1/FLAG0bb14d324 [2020-10-20 01:43:05,629 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:43:05,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product16.cil.c [2020-10-20 01:43:05,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d194b6a/80ade67e74b24e548351158369f001b1/FLAG0bb14d324 [2020-10-20 01:43:05,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92d194b6a/80ade67e74b24e548351158369f001b1 [2020-10-20 01:43:05,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:43:05,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:43:05,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:05,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:43:05,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:43:05,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3208ed8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:05, skipping insertion in model container [2020-10-20 01:43:05,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:43:05" (1/1) ... [2020-10-20 01:43:05,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:43:06,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:43:06,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:06,502 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:43:06,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:43:06,609 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:43:06,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06 WrapperNode [2020-10-20 01:43:06,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:43:06,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:06,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:43:06,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:43:06,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:43:06,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:43:06,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:43:06,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:43:06,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (1/1) ... [2020-10-20 01:43:06,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:43:06,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:43:06,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:43:06,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:43:06,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (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 01:43:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:43:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:43:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:43:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:43:07,616 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:43:07,617 INFO L298 CfgBuilder]: Removed 114 assume(true) statements. [2020-10-20 01:43:07,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:07 BoogieIcfgContainer [2020-10-20 01:43:07,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:43:07,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:43:07,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:43:07,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:43:07,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:43:05" (1/3) ... [2020-10-20 01:43:07,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417f612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:07, skipping insertion in model container [2020-10-20 01:43:07,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:43:06" (2/3) ... [2020-10-20 01:43:07,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4417f612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:43:07, skipping insertion in model container [2020-10-20 01:43:07,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:07" (3/3) ... [2020-10-20 01:43:07,626 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-10-20 01:43:07,638 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:43:07,645 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-20 01:43:07,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-20 01:43:07,683 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:43:07,683 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:43:07,683 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:43:07,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:43:07,684 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:43:07,684 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:43:07,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:43:07,684 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:43:07,699 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states. [2020-10-20 01:43:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 01:43:07,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:07,706 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 01:43:07,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:07,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash -355307121, now seen corresponding path program 1 times [2020-10-20 01:43:07,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:07,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849060114] [2020-10-20 01:43:07,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:08,039 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 01:43:08,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849060114] [2020-10-20 01:43:08,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:08,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:43:08,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409944257] [2020-10-20 01:43:08,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:43:08,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:43:08,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:43:08,058 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 2 states. [2020-10-20 01:43:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:08,087 INFO L93 Difference]: Finished difference Result 151 states and 224 transitions. [2020-10-20 01:43:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:43:08,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-10-20 01:43:08,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:08,100 INFO L225 Difference]: With dead ends: 151 [2020-10-20 01:43:08,100 INFO L226 Difference]: Without dead ends: 73 [2020-10-20 01:43:08,104 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 01:43:08,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-20 01:43:08,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-10-20 01:43:08,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-10-20 01:43:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2020-10-20 01:43:08,143 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 18 [2020-10-20 01:43:08,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:08,144 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2020-10-20 01:43:08,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:43:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2020-10-20 01:43:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-20 01:43:08,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:08,146 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 01:43:08,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:43:08,146 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:08,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1266337874, now seen corresponding path program 1 times [2020-10-20 01:43:08,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:08,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490112149] [2020-10-20 01:43:08,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:08,301 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 01:43:08,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490112149] [2020-10-20 01:43:08,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:08,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:08,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995771303] [2020-10-20 01:43:08,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:08,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:08,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:08,305 INFO L87 Difference]: Start difference. First operand 73 states and 102 transitions. Second operand 3 states. [2020-10-20 01:43:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:08,317 INFO L93 Difference]: Finished difference Result 73 states and 102 transitions. [2020-10-20 01:43:08,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:08,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-20 01:43:08,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:08,319 INFO L225 Difference]: With dead ends: 73 [2020-10-20 01:43:08,319 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 01:43:08,320 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 01:43:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 01:43:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 01:43:08,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 01:43:08,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-10-20 01:43:08,326 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-10-20 01:43:08,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:08,327 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-10-20 01:43:08,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:08,327 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-10-20 01:43:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-20 01:43:08,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:08,329 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 01:43:08,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:43:08,329 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:08,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:08,330 INFO L82 PathProgramCache]: Analyzing trace with hash 428358184, now seen corresponding path program 1 times [2020-10-20 01:43:08,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:08,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14756699] [2020-10-20 01:43:08,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:08,463 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 01:43:08,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14756699] [2020-10-20 01:43:08,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:08,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:43:08,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728167571] [2020-10-20 01:43:08,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:43:08,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:08,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:43:08,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:43:08,466 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 3 states. [2020-10-20 01:43:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:08,511 INFO L93 Difference]: Finished difference Result 93 states and 135 transitions. [2020-10-20 01:43:08,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:43:08,512 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-20 01:43:08,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:08,513 INFO L225 Difference]: With dead ends: 93 [2020-10-20 01:43:08,513 INFO L226 Difference]: Without dead ends: 64 [2020-10-20 01:43:08,534 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 01:43:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-20 01:43:08,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 60. [2020-10-20 01:43:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-20 01:43:08,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 87 transitions. [2020-10-20 01:43:08,553 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 87 transitions. Word has length 24 [2020-10-20 01:43:08,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:08,553 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 87 transitions. [2020-10-20 01:43:08,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:43:08,553 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 87 transitions. [2020-10-20 01:43:08,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-20 01:43:08,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:08,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:43:08,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:43:08,557 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:08,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:08,557 INFO L82 PathProgramCache]: Analyzing trace with hash 796513325, now seen corresponding path program 1 times [2020-10-20 01:43:08,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:08,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369507986] [2020-10-20 01:43:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:43:08,689 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 01:43:08,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369507986] [2020-10-20 01:43:08,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:43:08,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:43:08,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409171999] [2020-10-20 01:43:08,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 01:43:08,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:43:08,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 01:43:08,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:43:08,691 INFO L87 Difference]: Start difference. First operand 60 states and 87 transitions. Second operand 5 states. [2020-10-20 01:43:08,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:43:08,815 INFO L93 Difference]: Finished difference Result 320 states and 488 transitions. [2020-10-20 01:43:08,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 01:43:08,816 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-20 01:43:08,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:43:08,819 INFO L225 Difference]: With dead ends: 320 [2020-10-20 01:43:08,819 INFO L226 Difference]: Without dead ends: 266 [2020-10-20 01:43:08,820 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 01:43:08,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-20 01:43:08,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 108. [2020-10-20 01:43:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-20 01:43:08,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2020-10-20 01:43:08,860 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 25 [2020-10-20 01:43:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:43:08,860 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2020-10-20 01:43:08,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 01:43:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2020-10-20 01:43:08,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 01:43:08,863 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:43:08,863 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 01:43:08,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:43:08,864 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:43:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:43:08,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1162795665, now seen corresponding path program 1 times [2020-10-20 01:43:08,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:43:08,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019581329] [2020-10-20 01:43:08,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:43:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:08,964 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 01:43:09,042 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 01:43:09,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 01:43:09,116 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 01:43:09,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 01:43:09,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:43:09 BoogieIcfgContainer [2020-10-20 01:43:09,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:43:09,206 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:43:09,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:43:09,207 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:43:09,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:43:07" (3/4) ... [2020-10-20 01:43:09,209 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 01:43:09,306 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:43:09,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:43:09,309 INFO L168 Benchmark]: Toolchain (without parser) took 3332.84 ms. Allocated memory was 40.9 MB in the beginning and 55.6 MB in the end (delta: 14.7 MB). Free memory was 18.3 MB in the beginning and 10.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,310 INFO L168 Benchmark]: CDTParser took 0.95 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.76 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.5 MB in the beginning and 22.9 MB in the end (delta: -5.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.46 ms. Allocated memory is still 43.0 MB. Free memory was 22.6 MB in the beginning and 19.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,312 INFO L168 Benchmark]: Boogie Preprocessor took 39.25 ms. Allocated memory is still 43.0 MB. Free memory was 19.3 MB in the beginning and 17.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,312 INFO L168 Benchmark]: RCFGBuilder took 902.69 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 16.8 MB in the beginning and 17.1 MB in the end (delta: -319.8 kB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,313 INFO L168 Benchmark]: TraceAbstraction took 1586.22 ms. Allocated memory was 45.6 MB in the beginning and 55.6 MB in the end (delta: 10.0 MB). Free memory was 16.5 MB in the beginning and 23.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,313 INFO L168 Benchmark]: Witness Printer took 100.35 ms. Allocated memory is still 55.6 MB. Free memory was 23.7 MB in the beginning and 10.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:43:09,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 628.76 ms. Allocated memory was 40.9 MB in the beginning and 43.0 MB in the end (delta: 2.1 MB). Free memory was 17.5 MB in the beginning and 22.9 MB in the end (delta: -5.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 65.46 ms. Allocated memory is still 43.0 MB. Free memory was 22.6 MB in the beginning and 19.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 39.25 ms. Allocated memory is still 43.0 MB. Free memory was 19.3 MB in the beginning and 17.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 902.69 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 16.8 MB in the beginning and 17.1 MB in the end (delta: -319.8 kB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1586.22 ms. Allocated memory was 45.6 MB in the beginning and 55.6 MB in the end (delta: 10.0 MB). Free memory was 16.5 MB in the beginning and 23.7 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.9 MB. Max. memory is 14.3 GB. * Witness Printer took 100.35 ms. Allocated memory is still 55.6 MB. Free memory was 23.7 MB in the beginning and 10.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 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: [L51] int cleanupTimeShifts = 4; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] int retValue_acc ; [L801] retValue_acc = 1 [L802] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L767] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L613] COND TRUE \read(systemActive) [L635] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L889] int tmp ; [L890] int tmp___0 ; [L891] int tmp___1 ; [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L895] tmp = isMethaneLevelCritical() [L897] COND FALSE !(\read(tmp)) [L879] int retValue_acc ; [L882] retValue_acc = waterLevel [L883] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] tmp___0 = getWaterLevel() [L903] COND TRUE tmp___0 == 2 [L704] int retValue_acc ; [L707] retValue_acc = pumpRunning [L708] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] tmp___1 = isPumpRunning() [L907] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product16.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 80 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 284 SDslu, 232 SDs, 0 SdLazy, 39 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, 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, 4 MinimizatonAttempts, 162 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...