./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/filter2_alt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/float-benchs/filter2_alt.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 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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 ../../../trunk/examples/svcomp/float-benchs/filter2_alt.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f ............................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: TYPE ERROR --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:22:39,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:22:39,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:22:39,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:22:39,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:22:39,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:22:39,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:22:39,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:22:39,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:22:39,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:22:39,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:22:39,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:22:39,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:22:39,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:22:39,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:22:39,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:22:39,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:22:39,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:22:39,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:22:39,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:22:39,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:22:39,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:22:39,479 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:22:39,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:22:39,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:22:39,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:22:39,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:22:39,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:22:39,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:22:39,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:22:39,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:22:39,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:22:39,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:22:39,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:22:39,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:22:39,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:22:39,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:22:39,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:22:39,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:22:39,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:22:39,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:22:39,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:22:39,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:22:39,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:22:39,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:22:39,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:22:39,528 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:22:39,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:22:39,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:22:39,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:22:39,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:22:39,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:22:39,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:22:39,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:22:39,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:22:39,532 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:22:39,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:22:39,533 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:22:39,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:22:39,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:22:39,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:22:39,534 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:22:39,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:22:39,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:22:39,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:22:39,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:22:39,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:22:39,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:22:39,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:22:39,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:22:39,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:22:39,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f [2020-12-02 14:22:39,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:22:39,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:22:39,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:22:39,926 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:22:39,928 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:22:39,929 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter2_alt.c [2020-12-02 14:22:40,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f93e7038/30d25fda56304e2e853f3f0df2fe7b4c/FLAG5d62e3bae [2020-12-02 14:22:40,684 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:22:40,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c [2020-12-02 14:22:40,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f93e7038/30d25fda56304e2e853f3f0df2fe7b4c/FLAG5d62e3bae [2020-12-02 14:22:41,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f93e7038/30d25fda56304e2e853f3f0df2fe7b4c [2020-12-02 14:22:41,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:22:41,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:22:41,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:22:41,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:22:41,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:22:41,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f41263f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41, skipping insertion in model container [2020-12-02 14:22:41,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,054 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:22:41,074 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:22:41,292 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c[631,644] [2020-12-02 14:22:41,318 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:22:41,329 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:22:41,343 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c[631,644] [2020-12-02 14:22:41,354 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:22:41,378 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:22:41,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41 WrapperNode [2020-12-02 14:22:41,378 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:22:41,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:22:41,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:22:41,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:22:41,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:22:41,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:22:41,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:22:41,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:22:41,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (1/1) ... [2020-12-02 14:22:41,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:22:41,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:22:41,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:22:41,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:22:41,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (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 [2020-12-02 14:22:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:22:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:22:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 14:22:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 14:22:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:22:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:22:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 14:22:41,848 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:22:41,849 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-12-02 14:22:41,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:41 BoogieIcfgContainer [2020-12-02 14:22:41,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:22:41,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:22:41,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:22:41,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:22:41,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:22:41" (1/3) ... [2020-12-02 14:22:41,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c9b3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:41, skipping insertion in model container [2020-12-02 14:22:41,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:41" (2/3) ... [2020-12-02 14:22:41,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c9b3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:22:41, skipping insertion in model container [2020-12-02 14:22:41,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:41" (3/3) ... [2020-12-02 14:22:41,860 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2020-12-02 14:22:41,877 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:22:41,880 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:22:41,894 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:22:41,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:22:41,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:22:41,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:22:41,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:22:41,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:22:41,966 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:22:41,966 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:22:41,967 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:22:42,000 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-02 14:22:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:22:42,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:22:42,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:22:42,017 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:22:42,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:22:42,029 INFO L82 PathProgramCache]: Analyzing trace with hash -711541957, now seen corresponding path program 1 times [2020-12-02 14:22:42,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:22:42,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222150437] [2020-12-02 14:22:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:22:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:22:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:22:42,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222150437] [2020-12-02 14:22:42,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:22:42,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 14:22:42,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000994333] [2020-12-02 14:22:42,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 14:22:42,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 14:22:42,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 14:22:42,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 14:22:42,330 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-12-02 14:22:42,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:22:42,350 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2020-12-02 14:22:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 14:22:42,352 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-02 14:22:42,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:22:42,368 INFO L225 Difference]: With dead ends: 31 [2020-12-02 14:22:42,369 INFO L226 Difference]: Without dead ends: 15 [2020-12-02 14:22:42,375 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 [2020-12-02 14:22:42,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-02 14:22:42,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-02 14:22:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-02 14:22:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-12-02 14:22:42,424 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2020-12-02 14:22:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:22:42,425 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-12-02 14:22:42,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 14:22:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-12-02 14:22:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 14:22:42,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:22:42,427 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:22:42,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:22:42,429 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:22:42,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:22:42,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1047310665, now seen corresponding path program 1 times [2020-12-02 14:22:42,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:22:42,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141172321] [2020-12-02 14:22:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:22:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:22:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:22:42,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141172321] [2020-12-02 14:22:42,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:22:42,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-02 14:22:42,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006471577] [2020-12-02 14:22:42,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 14:22:42,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 14:22:42,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 14:22:42,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 14:22:42,615 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2020-12-02 14:22:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:22:42,657 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-12-02 14:22:42,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 14:22:42,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-02 14:22:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:22:42,659 INFO L225 Difference]: With dead ends: 32 [2020-12-02 14:22:42,659 INFO L226 Difference]: Without dead ends: 22 [2020-12-02 14:22:42,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 14:22:42,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-02 14:22:42,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-12-02 14:22:42,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-02 14:22:42,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-12-02 14:22:42,671 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2020-12-02 14:22:42,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:22:42,672 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-12-02 14:22:42,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 14:22:42,673 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-12-02 14:22:42,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-02 14:22:42,675 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:22:42,675 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 14:22:42,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 14:22:42,676 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:22:42,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:22:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 60789832, now seen corresponding path program 1 times [2020-12-02 14:22:42,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:22:42,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328002629] [2020-12-02 14:22:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:22:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:22:42,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:22:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:22:42,870 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:22:42,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:22:42,922 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:22:42,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-02 14:22:42,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:22:42 BoogieIcfgContainer [2020-12-02 14:22:42,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:22:42,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:22:42,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:22:42,997 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:22:42,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:22:41" (3/4) ... [2020-12-02 14:22:43,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:22:43,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:22:43,004 INFO L168 Benchmark]: Toolchain (without parser) took 1971.62 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 23.0 MB in the beginning and 34.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:43,005 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 46.1 MB. Free memory was 24.2 MB in the beginning and 24.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:22:43,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.86 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.7 MB in the beginning and 38.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:43,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.46 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:43,008 INFO L168 Benchmark]: Boogie Preprocessor took 31.81 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 35.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:43,009 INFO L168 Benchmark]: RCFGBuilder took 371.03 ms. Allocated memory is still 60.8 MB. Free memory was 35.2 MB in the beginning and 34.5 MB in the end (delta: 728.9 kB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:43,010 INFO L168 Benchmark]: TraceAbstraction took 1143.07 ms. Allocated memory is still 60.8 MB. Free memory was 34.0 MB in the beginning and 35.0 MB in the end (delta: -1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:22:43,011 INFO L168 Benchmark]: Witness Printer took 5.21 ms. Allocated memory is still 60.8 MB. Free memory was 35.0 MB in the beginning and 34.6 MB in the end (delta: 399.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:22:43,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 46.1 MB. Free memory was 24.2 MB in the beginning and 24.1 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.86 ms. Allocated memory was 46.1 MB in the beginning and 60.8 MB in the end (delta: 14.7 MB). Free memory was 22.7 MB in the beginning and 38.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.46 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 36.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.81 ms. Allocated memory is still 60.8 MB. Free memory was 36.6 MB in the beginning and 35.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 371.03 ms. Allocated memory is still 60.8 MB. Free memory was 35.2 MB in the beginning and 34.5 MB in the end (delta: 728.9 kB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1143.07 ms. Allocated memory is still 60.8 MB. Free memory was 34.0 MB in the beginning and 35.0 MB in the end (delta: -1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.21 ms. Allocated memory is still 60.8 MB. Free memory was 35.0 MB in the beginning and 34.6 MB in the end (delta: 399.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 38, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 43. Possible FailurePath: [L19] BOOLEAN INIT; [L20] float P, X; [L32] static float E[2], S[2]; VAL [E={3:0}, INIT=0, P=0, S={5:0}, X=0] [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) VAL [E={3:0}, INIT=0, P=0, S={5:0}, X=0] [L27] return x; VAL [E={3:0}, INIT=0, P=0, S={5:0}, X=0] [L52] X = RANDOM_INPUT() [L53] INIT = TRUE VAL [E={3:0}, INIT=1, P=0, S={5:0}, X=50] [L54] COND TRUE \read(TRUE) [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) VAL [E={3:0}, INIT=1, P=0, S={5:0}, X=50] [L27] return x; VAL [E={3:0}, INIT=1, P=0, S={5:0}, X=50] [L55] X = RANDOM_INPUT() [L33] COND TRUE \read(INIT) [L34] S[0] = X [L35] P = X [L36] E[0] = X VAL [E={3:0}, INIT=1, P=51, S={5:0}, X=51] [L46] EXPR E[0] [L46] E[1] = E[0] [L46] E[0] = X [L47] EXPR S[0] [L47] S[1] = S[0] [L47] S[0] = P VAL [E={3:0}, INIT=1, P=51, S={5:0}, X=51] [L57] INIT = FALSE VAL [E={3:0}, INIT=0, P=51, S={5:0}, X=51] [L54] COND TRUE \read(TRUE) [L24] float x; [L25] x = __VERIFIER_nondet_float() [L12] COND FALSE !(!cond) VAL [E={3:0}, INIT=0, P=51, S={5:0}, X=51] [L27] return x; VAL [E={3:0}, INIT=0, P=51, S={5:0}, X=51] [L55] X = RANDOM_INPUT() [L33] COND FALSE !(\read(INIT)) [L39] EXPR E[0] [L40] EXPR E[1] [L41] EXPR S[0] [L42] EXPR S[1] [L38-L42] P = (((((0.4677826f * X) - (E[0] * 0.7700725f)) + (E[1] * 0.4344376f)) + (S[0] * 1.5419f)) - (S[1] * 0.6740477f)) [L14] COND TRUE !(cond) VAL [E={3:0}, INIT=0, S={5:0}, X=55] [L14] reach_error() VAL [E={3:0}, INIT=0, S={5:0}, X=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 2 SDslu, 11 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 14:22:45,601 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-12-02 14:22:45,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:22:45,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:22:45,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:22:45,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:22:45,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:22:45,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:22:45,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:22:45,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:22:45,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:22:45,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:22:45,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:22:45,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:22:45,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:22:45,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:22:45,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:22:45,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:22:45,726 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:22:45,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:22:45,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:22:45,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:22:45,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:22:45,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:22:45,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:22:45,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:22:45,728 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:22:45,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:22:45,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:22:45,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:22:45,730 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:22:45,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:22:45,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:22:45,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:22:45,731 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:22:45,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:22:45,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:22:45,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:22:45,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:22:45,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:22:45,733 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:22:45,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:22:45,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:22:45,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:22:45,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:22:45,734 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f [2020-12-02 14:22:46,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:22:46,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:22:46,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:22:46,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:22:46,158 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:22:46,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter2_alt.c [2020-12-02 14:22:46,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6650867/3fb826d72f70471cb4aede1c3a9146d8/FLAGc1f092207 [2020-12-02 14:22:46,811 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:22:46,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c [2020-12-02 14:22:46,820 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6650867/3fb826d72f70471cb4aede1c3a9146d8/FLAGc1f092207 [2020-12-02 14:22:47,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d6650867/3fb826d72f70471cb4aede1c3a9146d8 [2020-12-02 14:22:47,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:22:47,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:22:47,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:22:47,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:22:47,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:22:47,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:47" (1/1) ... [2020-12-02 14:22:47,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4024dfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:47, skipping insertion in model container [2020-12-02 14:22:47,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:47" (1/1) ... [2020-12-02 14:22:47,247 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:22:47,266 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:22:47,483 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c[631,644] [2020-12-02 14:22:47,513 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:22:47,531 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:22:47,546 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter2_alt.c[631,644] [2020-12-02 14:22:47,562 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:22:47,600 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:22:47,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:47 WrapperNode [2020-12-02 14:22:47,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:22:47,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:22:47,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:22:47,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:22:47,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:47" (1/1) ... [2020-12-02 14:22:47,627 ERROR L1131 TypeChecker]: C: float P, X; [20]: Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~P~0 := ~Pluszero~FLOAT(); [2020-12-02 14:22:47,628 ERROR L1131 TypeChecker]: C: float P, X; [20]: Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~X~0 := ~Pluszero~FLOAT(); [2020-12-02 14:22:47,628 ERROR L1131 TypeChecker]: C: static float E[2], S[2]; [32]: Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],base],StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],offset]]],BitvecLiteral[4,32]]] [2020-12-02 14:22:47,629 ERROR L1131 TypeChecker]: C: static float E[2], S[2]; [32]: Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],base],FunctionApplication[~bvadd32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],offset]]]]],BitvecLiteral[4,32]]] [2020-12-02 14:22:47,629 ERROR L1131 TypeChecker]: C: static float E[2], S[2]; [32]: Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],base],StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],offset]]],BitvecLiteral[4,32]]] [2020-12-02 14:22:47,630 ERROR L1131 TypeChecker]: C: static float E[2], S[2]; [32]: Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],base],FunctionApplication[~bvadd32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],offset]]]]],BitvecLiteral[4,32]]] [2020-12-02 14:22:47,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:47" (1/1) ... [2020-12-02 14:22:47,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:22:47,634 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-12-02 14:22:47,637 INFO L168 Benchmark]: Toolchain (without parser) took 428.44 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.8 MB in the beginning and 34.4 MB in the end (delta: -15.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:22:47,638 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:22:47,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.01 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.6 MB in the beginning and 35.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:47,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.48 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 34.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:22:47,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 26.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.01 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.6 MB in the beginning and 35.9 MB in the end (delta: -17.3 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.48 ms. Allocated memory is still 52.4 MB. Free memory was 35.7 MB in the beginning and 34.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - TypeErrorResult [Line: 20]: Type Error Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~P~0 := ~Pluszero~FLOAT(); - TypeErrorResult [Line: 20]: Type Error Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~X~0 := ~Pluszero~FLOAT(); - TypeErrorResult [Line: 32]: Type Error Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],base],StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],offset]]],BitvecLiteral[4,32]]] - TypeErrorResult [Line: 32]: Type Error Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],base],FunctionApplication[~bvadd32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[~#E~0,GLOBAL],offset]]]]],BitvecLiteral[4,32]]] - TypeErrorResult [Line: 32]: Type Error Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],base],StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],offset]]],BitvecLiteral[4,32]]] - TypeErrorResult [Line: 32]: Type Error Wrong parameter type at index 0: CallStatement[null,false,[],write~init~intFLOATTYPE4,[FunctionApplication[~Pluszero~FLOAT,[]],StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],base],FunctionApplication[~bvadd32,[BitvecLiteral[4,32],StructAccessExpression[IdentifierExpression[~#S~0,GLOBAL],offset]]]]],BitvecLiteral[4,32]]] RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...