./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/filter2_alt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter2_alt.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/filter2_alt.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-ee8e70e [2020-10-24 14:23:49,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:23:49,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:23:49,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:23:49,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:23:49,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:23:49,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:23:49,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:23:49,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:23:49,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:23:49,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:23:49,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:23:49,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:23:49,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:23:49,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:23:49,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:23:49,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:23:49,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:23:49,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:23:49,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:23:49,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:23:49,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:23:49,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:23:49,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:23:49,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:23:49,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:23:49,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:23:49,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:23:49,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:23:49,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:23:49,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:23:49,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:23:49,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:23:49,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:23:49,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:23:49,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:23:49,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:23:49,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:23:49,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:23:49,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:23:49,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:23:49,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:23:49,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:23:49,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:23:49,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:23:49,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:23:49,522 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:23:49,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:23:49,523 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:23:49,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:23:49,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:23:49,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:23:49,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:23:49,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:23:49,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:23:49,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:23:49,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:23:49,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:23:49,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:23:49,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:23:49,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:23:49,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:23:49,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:23:49,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:23:49,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:23:49,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:23:49,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:23:49,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:23:49,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:23:49,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:23:49,528 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:23:49,529 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f [2020-10-24 14:23:49,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:23:50,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:23:50,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:23:50,019 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:23:50,021 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:23:50,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_alt.c [2020-10-24 14:23:50,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db3543f7e/a12ef7da56e743babc3e0df4bab3bee3/FLAG3fa41922f [2020-10-24 14:23:50,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:23:50,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_alt.c [2020-10-24 14:23:50,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db3543f7e/a12ef7da56e743babc3e0df4bab3bee3/FLAG3fa41922f [2020-10-24 14:23:51,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/db3543f7e/a12ef7da56e743babc3e0df4bab3bee3 [2020-10-24 14:23:51,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:23:51,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:23:51,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:23:51,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:23:51,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:23:51,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@365a672a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51, skipping insertion in model container [2020-10-24 14:23:51,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,109 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:23:51,138 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:23:51,322 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:23:51,333 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:23:51,364 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:23:51,389 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:23:51,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51 WrapperNode [2020-10-24 14:23:51,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:23:51,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:23:51,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:23:51,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:23:51,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:23:51,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:23:51,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:23:51,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:23:51,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... [2020-10-24 14:23:51,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:23:51,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:23:51,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:23:51,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:23:51,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:23:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:23:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:23:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 14:23:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 14:23:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:23:51,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:23:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 14:23:52,123 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:23:52,124 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-10-24 14:23:52,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:52 BoogieIcfgContainer [2020-10-24 14:23:52,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:23:52,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:23:52,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:23:52,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:23:52,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:23:51" (1/3) ... [2020-10-24 14:23:52,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d77c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:52, skipping insertion in model container [2020-10-24 14:23:52,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:51" (2/3) ... [2020-10-24 14:23:52,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d77c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:52, skipping insertion in model container [2020-10-24 14:23:52,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:52" (3/3) ... [2020-10-24 14:23:52,142 INFO L111 eAbstractionObserver]: Analyzing ICFG filter2_alt.c [2020-10-24 14:23:52,156 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:23:52,162 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:23:52,177 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:23:52,226 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:23:52,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:23:52,227 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:23:52,227 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:23:52,228 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:23:52,228 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:23:52,228 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:23:52,228 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:23:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-24 14:23:52,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 14:23:52,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:23:52,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:23:52,257 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:23:52,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:23:52,265 INFO L82 PathProgramCache]: Analyzing trace with hash -711541957, now seen corresponding path program 1 times [2020-10-24 14:23:52,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:23:52,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048750360] [2020-10-24 14:23:52,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:23:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:23:52,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:23:52,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048750360] [2020-10-24 14:23:52,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:23:52,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 14:23:52,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074436491] [2020-10-24 14:23:52,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:23:52,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 14:23:52,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:23:52,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:23:52,503 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-10-24 14:23:52,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:23:52,523 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2020-10-24 14:23:52,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:23:52,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 14:23:52,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:23:52,534 INFO L225 Difference]: With dead ends: 32 [2020-10-24 14:23:52,534 INFO L226 Difference]: Without dead ends: 15 [2020-10-24 14:23:52,538 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 [2020-10-24 14:23:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-24 14:23:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-24 14:23:52,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-24 14:23:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-10-24 14:23:52,575 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2020-10-24 14:23:52,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:23:52,576 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-10-24 14:23:52,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:23:52,576 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-10-24 14:23:52,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 14:23:52,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:23:52,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:23:52,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:23:52,578 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:23:52,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:23:52,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1047310665, now seen corresponding path program 1 times [2020-10-24 14:23:52,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:23:52,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421039968] [2020-10-24 14:23:52,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:23:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:23:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:23:52,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421039968] [2020-10-24 14:23:52,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:23:52,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 14:23:52,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049531540] [2020-10-24 14:23:52,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 14:23:52,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 14:23:52,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 14:23:52,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 14:23:52,691 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2020-10-24 14:23:52,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:23:52,716 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-24 14:23:52,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 14:23:52,717 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-24 14:23:52,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:23:52,718 INFO L225 Difference]: With dead ends: 32 [2020-10-24 14:23:52,718 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 14:23:52,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 14:23:52,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 14:23:52,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2020-10-24 14:23:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 14:23:52,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-24 14:23:52,736 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2020-10-24 14:23:52,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:23:52,736 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-24 14:23:52,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 14:23:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-24 14:23:52,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 14:23:52,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:23:52,738 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:23:52,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 14:23:52,738 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:23:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:23:52,739 INFO L82 PathProgramCache]: Analyzing trace with hash -68498424, now seen corresponding path program 1 times [2020-10-24 14:23:52,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:23:52,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269786229] [2020-10-24 14:23:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:23:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:23:52,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:23:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:23:52,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:23:52,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:23:52,956 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:23:52,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 14:23:53,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:23:53 BoogieIcfgContainer [2020-10-24 14:23:53,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:23:53,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:23:53,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:23:53,049 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:23:53,053 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:52" (3/4) ... [2020-10-24 14:23:53,057 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:23:53,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:23:53,061 INFO L168 Benchmark]: Toolchain (without parser) took 2002.59 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.9 MB in the beginning and 25.3 MB in the end (delta: -6.3 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,063 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory is still 28.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:23:53,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.41 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 35.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 52.4 MB. Free memory was 35.5 MB in the beginning and 33.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,068 INFO L168 Benchmark]: Boogie Preprocessor took 33.66 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 32.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,076 INFO L168 Benchmark]: RCFGBuilder took 654.98 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 28.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,077 INFO L168 Benchmark]: TraceAbstraction took 915.91 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 25.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:53,079 INFO L168 Benchmark]: Witness Printer took 8.39 ms. Allocated memory is still 52.4 MB. Free memory was 25.6 MB in the beginning and 25.3 MB in the end (delta: 312.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:23:53,094 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory is still 28.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.41 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 35.5 MB in the end (delta: -17.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 52.4 MB. Free memory was 35.5 MB in the beginning and 33.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.66 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 32.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 654.98 ms. Allocated memory is still 52.4 MB. Free memory was 32.4 MB in the beginning and 28.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 915.91 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 25.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Witness Printer took 8.39 ms. Allocated memory is still 52.4 MB. Free memory was 25.6 MB in the beginning and 25.3 MB in the end (delta: 312.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() 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] [L3] __assert_fail("0", "filter2_alt.c", 3, "reach_error") VAL [E={3:0}, INIT=0, S={5:0}, X=55] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.0s, 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, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, 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-ee8e70e [2020-10-24 14:23:55,900 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-10-24 14:23:55,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:23:55,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:23:55,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:23:55,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:23:55,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:23:55,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:23:55,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:23:55,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:23:55,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:23:55,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:23:55,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:23:55,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:23:56,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:23:56,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:23:56,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:23:56,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:23:56,035 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:23:56,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:23:56,036 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:23:56,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:23:56,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:23:56,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:23:56,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:23:56,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:23:56,038 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:23:56,038 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:23:56,038 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:23:56,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:23:56,039 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:23:56,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:23:56,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:23:56,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:23:56,040 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:23:56,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:23:56,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:23:56,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:23:56,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:23:56,041 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:23:56,042 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:23:56,042 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:23:56,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:23:56,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:23:56,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:23:56,043 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa2ee0aef847d0494f09c070bbfd81eecc9b76f [2020-10-24 14:23:56,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:23:56,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:23:56,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:23:56,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:23:56,500 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:23:56,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_alt.c [2020-10-24 14:23:56,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b5a9fb6/73af99ed22a64ca39b0a947583f868e0/FLAG97c6c5270 [2020-10-24 14:23:57,265 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:23:57,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_alt.c [2020-10-24 14:23:57,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b5a9fb6/73af99ed22a64ca39b0a947583f868e0/FLAG97c6c5270 [2020-10-24 14:23:57,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b5a9fb6/73af99ed22a64ca39b0a947583f868e0 [2020-10-24 14:23:57,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:23:57,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:23:57,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:23:57,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:23:57,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:23:57,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:57" (1/1) ... [2020-10-24 14:23:57,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f795f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:57, skipping insertion in model container [2020-10-24 14:23:57,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:57" (1/1) ... [2020-10-24 14:23:57,684 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:23:57,700 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:23:57,894 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:23:57,921 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:23:57,952 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:23:57,985 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:23:57,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:57 WrapperNode [2020-10-24 14:23:57,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:23:57,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:23:57,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:23:57,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:23:57,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:57" (1/1) ... [2020-10-24 14:23:58,016 ERROR L1131 TypeChecker]: C: float P, X; [20]: Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~P~0 := ~Pluszero~FLOAT(); [2020-10-24 14:23:58,018 ERROR L1131 TypeChecker]: C: float P, X; [20]: Type mismatch (C_FLOAT != C_FLOAT_SMT) in ~X~0 := ~Pluszero~FLOAT(); [2020-10-24 14:23:58,018 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]]] [2020-10-24 14:23:58,019 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]]] [2020-10-24 14:23:58,019 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]]] [2020-10-24 14:23:58,019 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]]] [2020-10-24 14:23:58,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:57" (1/1) ... [2020-10-24 14:23:58,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:23:58,023 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-24 14:23:58,027 INFO L168 Benchmark]: Toolchain (without parser) took 380.21 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.9 MB in the beginning and 28.2 MB in the end (delta: -13.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:23:58,028 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 37.7 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:23:58,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.74 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.2 MB in the beginning and 29.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:58,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 46.1 MB. Free memory was 29.5 MB in the beginning and 28.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:23:58,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 37.7 MB. Free memory was 22.3 MB in the beginning and 22.2 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.74 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.2 MB in the beginning and 29.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.45 ms. Allocated memory is still 46.1 MB. Free memory was 29.5 MB in the beginning and 28.2 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...