./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08947af3b6f9b8a272faa540a059213a9b1de888 ................................................................................................................................................................................................................................................................................................................................... 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float22.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 08947af3b6f9b8a272faa540a059213a9b1de888 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:34:33,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:33,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:33,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:33,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:33,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:33,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:33,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:33,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:33,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:33,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:33,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:33,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:33,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:33,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:33,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:33,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:33,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:33,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:33,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:33,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:33,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:33,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:33,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:33,583 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:33,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:33,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:33,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:33,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:33,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:33,588 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:33,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:33,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:33,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:33,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:33,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:33,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:33,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:33,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:33,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:33,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:33,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:34:33,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:33,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:33,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:33,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:33,635 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:33,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:33,636 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:33,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:34:33,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:33,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:33,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:33,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:33,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:33,639 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:33,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:33,640 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:33,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:33,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:33,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:33,642 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:33,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:33,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:33,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:33,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:33,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:33,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:34:33,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:34:33,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:33,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-11-27 23:34:33,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:33,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:33,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:33,957 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:33,957 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:33,958 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-27 23:34:34,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169cd305/7ecbd4e2569e40ab9472ad228668d2c2/FLAGda51e232b [2019-11-27 23:34:34,528 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:34,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-27 23:34:34,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169cd305/7ecbd4e2569e40ab9472ad228668d2c2/FLAGda51e232b [2019-11-27 23:34:34,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8169cd305/7ecbd4e2569e40ab9472ad228668d2c2 [2019-11-27 23:34:34,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:34,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:34,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:34,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:34,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:34,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:34" (1/1) ... [2019-11-27 23:34:34,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b5bf92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:34, skipping insertion in model container [2019-11-27 23:34:34,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:34" (1/1) ... [2019-11-27 23:34:34,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:34,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:35,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:35,197 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:35,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:35,309 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:35,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35 WrapperNode [2019-11-27 23:34:35,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:35,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:35,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:35,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:35,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:35,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:35,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:35,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:35,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... [2019-11-27 23:34:35,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:35,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:35,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:35,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:35,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:34:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:34:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:34:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:34:35,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:35,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:34:35,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:34:36,120 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:36,121 INFO L297 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-27 23:34:36,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:36 BoogieIcfgContainer [2019-11-27 23:34:36,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:36,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:36,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:36,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:36,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:34" (1/3) ... [2019-11-27 23:34:36,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664a1570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:36, skipping insertion in model container [2019-11-27 23:34:36,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:35" (2/3) ... [2019-11-27 23:34:36,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664a1570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:36, skipping insertion in model container [2019-11-27 23:34:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:36" (3/3) ... [2019-11-27 23:34:36,132 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-27 23:34:36,142 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:36,150 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-27 23:34:36,164 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-27 23:34:36,185 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:36,185 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:36,185 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:36,186 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:36,186 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:36,186 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:36,186 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:36,186 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:36,204 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-27 23:34:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-27 23:34:36,208 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:36,209 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-27 23:34:36,210 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:36,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:36,217 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-27 23:34:36,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:34:36,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164701557] [2019-11-27 23:34:36,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:34:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:34:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:34:36,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:34:36,478 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:34:36,490 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,491 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,492 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,492 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,493 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,493 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,494 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,494 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,494 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,495 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,495 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,496 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,496 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,497 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,497 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled [2019-11-27 23:34:36,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-27 23:34:36,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-27 23:34:36,507 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-27 23:34:36,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-27 23:34:36,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-27 23:34:36,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-27 23:34:36,509 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-27 23:34:36,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-27 23:34:36,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-27 23:34:36,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.exponent [2019-11-27 23:34:36,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.mantissa [2019-11-27 23:34:36,511 WARN L1295 BoogieBacktranslator]: unknown boogie variable returnsStructure_#res.ieee.negative [2019-11-27 23:34:36,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:34:36 BoogieIcfgContainer [2019-11-27 23:34:36,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:34:36,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:34:36,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:34:36,522 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:34:36,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:36" (3/4) ... [2019-11-27 23:34:36,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:34:36,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:34:36,531 INFO L168 Benchmark]: Toolchain (without parser) took 1593.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -105.3 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:36,532 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:36,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:36,534 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:36,535 INFO L168 Benchmark]: Boogie Preprocessor took 56.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:36,536 INFO L168 Benchmark]: RCFGBuilder took 688.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:36,537 INFO L168 Benchmark]: TraceAbstraction took 397.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:36,537 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:36,542 INFO L335 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 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 56.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 688.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 397.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * Witness Printer took 6.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList returnsStructure_#res : ~ieee754_float~0 not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.exponent - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.mantissa - GenericResult: Unfinished Backtranslation unknown boogie variable returnsStructure_#res.ieee.negative * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 133]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseAnd at line 119. Possible FailurePath: [L128] ieee754_float f1, f2; [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L130] f1 = returnsStructure(0) [L117] ieee754_float c; [L119] c.ieee.negative = index & 0x1 [L120] c.ieee.exponent = 0 [L121] c.ieee.mantissa = 0 [L123] return c; [L123] return c; VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L131] f2 = returnsStructure(1) [L133] EXPR f1.ieee.negative [L133] EXPR f2.ieee.negative VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] [L133] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L133] __VERIFIER_error() VAL [unknown-returnsStructure_#res.ieee.exponent-unknown=0, unknown-returnsStructure_#res.ieee.mantissa-unknown=0, unknown-returnsStructure_#res.ieee.negative-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: 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 0.1.24-30f4e4a [2019-11-27 23:34:38,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:38,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:38,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:38,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:38,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:38,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:38,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:38,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:38,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:38,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:38,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:38,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:38,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:38,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:38,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:38,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:38,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:38,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:38,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:38,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:38,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:38,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:38,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:38,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:38,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:38,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:38,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:38,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:38,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:38,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:38,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:38,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:38,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:38,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:38,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:38,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:38,609 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:38,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:38,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:38,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:38,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:34:38,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:38,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:38,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:38,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:38,647 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:38,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:38,647 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:38,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:38,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:38,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:38,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:38,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:38,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:34:38,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:34:38,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:38,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:38,650 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:38,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:38,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:38,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:38,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:38,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:38,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:38,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:38,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:38,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:38,657 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:34:38,657 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:34:38,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:38,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:34:38,658 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 08947af3b6f9b8a272faa540a059213a9b1de888 [2019-11-27 23:34:38,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:38,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:38,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:39,000 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:39,000 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:39,001 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-27 23:34:39,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803015ca/9177b1dd691646198112294c8c4f035e/FLAGc9f076f48 [2019-11-27 23:34:39,476 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:39,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2019-11-27 23:34:39,485 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803015ca/9177b1dd691646198112294c8c4f035e/FLAGc9f076f48 [2019-11-27 23:34:39,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b803015ca/9177b1dd691646198112294c8c4f035e [2019-11-27 23:34:39,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:39,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:39,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:39,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:39,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:39,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:39" (1/1) ... [2019-11-27 23:34:39,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e541f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:39, skipping insertion in model container [2019-11-27 23:34:39,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:39" (1/1) ... [2019-11-27 23:34:39,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:39,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:40,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:40,153 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:40,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:40,337 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:40,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40 WrapperNode [2019-11-27 23:34:40,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:40,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:40,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:40,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:40,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:40,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:40,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:40,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:40,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (1/1) ... [2019-11-27 23:34:40,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:40,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:40,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:40,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:40,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (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 [2019-11-27 23:34:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:34:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-27 23:34:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:34:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:40,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-27 23:34:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:34:40,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:34:41,129 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:41,130 INFO L297 CfgBuilder]: Removed 26 assume(true) statements. [2019-11-27 23:34:41,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:41 BoogieIcfgContainer [2019-11-27 23:34:41,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:41,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:41,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:41,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:41,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:39" (1/3) ... [2019-11-27 23:34:41,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4694ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:41, skipping insertion in model container [2019-11-27 23:34:41,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:40" (2/3) ... [2019-11-27 23:34:41,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4694ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:41, skipping insertion in model container [2019-11-27 23:34:41,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:41" (3/3) ... [2019-11-27 23:34:41,141 INFO L109 eAbstractionObserver]: Analyzing ICFG float22.i [2019-11-27 23:34:41,149 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:41,156 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-27 23:34:41,167 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-27 23:34:41,191 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:41,191 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:41,191 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:41,191 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:41,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:41,193 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:41,193 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:41,193 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:41,211 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-27 23:34:41,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-27 23:34:41,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:41,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-27 23:34:41,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:41,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:41,224 INFO L82 PathProgramCache]: Analyzing trace with hash 889475942, now seen corresponding path program 1 times [2019-11-27 23:34:41,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:41,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048164845] [2019-11-27 23:34:41,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-27 23:34:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:41,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-27 23:34:41,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:41,599 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-27 23:34:41,600 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-11-27 23:34:41,602 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:41,775 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-27 23:34:41,776 INFO L588 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-27 23:34:41,806 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-27 23:34:41,806 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:41,846 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:41,848 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:41,849 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-27 23:34:42,015 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:42,016 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-11-27 23:34:42,018 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:42,210 WARN L192 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-27 23:34:42,211 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:42,489 WARN L192 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-27 23:34:42,490 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-27 23:34:42,491 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-11-27 23:34:42,493 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:42,798 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-11-27 23:34:42,800 INFO L588 ElimStorePlain]: treesize reduction 44, result has 75.0 percent of original size [2019-11-27 23:34:42,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:42,809 INFO L508 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:42,810 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:164, output treesize:119 [2019-11-27 23:34:42,811 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:42,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:42,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:34:42,997 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:42,998 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 73 [2019-11-27 23:34:43,001 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:43,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:34:43,018 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 40 [2019-11-27 23:34:43,020 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:43,076 INFO L588 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-27 23:34:43,077 INFO L508 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:43,077 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 9 variables, input treesize:264, output treesize:25 [2019-11-27 23:34:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:43,106 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:47,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:47,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048164845] [2019-11-27 23:34:47,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:47,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:34:47,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903959617] [2019-11-27 23:34:47,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:34:47,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:47,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:34:47,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2019-11-27 23:34:47,578 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 8 states. [2019-11-27 23:34:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:48,139 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2019-11-27 23:34:48,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:34:48,144 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-11-27 23:34:48,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:48,155 INFO L225 Difference]: With dead ends: 57 [2019-11-27 23:34:48,155 INFO L226 Difference]: Without dead ends: 25 [2019-11-27 23:34:48,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=22, Invalid=49, Unknown=1, NotChecked=0, Total=72 [2019-11-27 23:34:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-27 23:34:48,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-27 23:34:48,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-27 23:34:48,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2019-11-27 23:34:48,199 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 6 [2019-11-27 23:34:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:48,200 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2019-11-27 23:34:48,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:34:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2019-11-27 23:34:48,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:34:48,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:48,201 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:48,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:34:48,412 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:48,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:48,414 INFO L82 PathProgramCache]: Analyzing trace with hash 2061469933, now seen corresponding path program 1 times [2019-11-27 23:34:48,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:48,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039954198] [2019-11-27 23:34:48,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:34:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:48,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-27 23:34:48,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:48,706 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2019-11-27 23:34:48,709 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:48,713 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:48,714 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:48,717 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:48,717 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:48,718 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:6 [2019-11-27 23:34:48,839 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-27 23:34:48,840 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-11-27 23:34:48,841 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:48,972 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-27 23:34:48,973 INFO L588 ElimStorePlain]: treesize reduction 36, result has 61.7 percent of original size [2019-11-27 23:34:48,987 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-27 23:34:48,988 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:49,017 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:49,018 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:49,019 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:70, output treesize:62 [2019-11-27 23:34:49,157 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:49,157 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-11-27 23:34:49,158 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:49,318 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-27 23:34:49,319 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:49,587 WARN L192 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-11-27 23:34:49,588 INFO L343 Elim1Store]: treesize reduction 74, result has 54.3 percent of original size [2019-11-27 23:34:49,589 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 140 [2019-11-27 23:34:49,591 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:49,879 WARN L192 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-11-27 23:34:49,881 INFO L588 ElimStorePlain]: treesize reduction 44, result has 74.0 percent of original size [2019-11-27 23:34:49,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:49,885 INFO L508 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:49,886 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:157, output treesize:112 [2019-11-27 23:34:49,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:49,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:49,961 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:34:49,987 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 42 [2019-11-27 23:34:49,988 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:49,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:34:50,028 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:50,029 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 103 treesize of output 75 [2019-11-27 23:34:50,031 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:50,088 INFO L588 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-27 23:34:50,089 INFO L508 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:50,089 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:260, output treesize:25 [2019-11-27 23:34:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:50,112 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:56,922 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 68 [2019-11-27 23:34:56,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:56,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039954198] [2019-11-27 23:34:56,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:56,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2019-11-27 23:34:56,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096156123] [2019-11-27 23:34:56,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-27 23:34:56,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:56,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-27 23:34:56,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=52, Unknown=1, NotChecked=0, Total=72 [2019-11-27 23:34:56,942 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 9 states. [2019-11-27 23:34:57,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:57,780 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-11-27 23:34:57,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:34:57,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-11-27 23:34:57,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:57,783 INFO L225 Difference]: With dead ends: 25 [2019-11-27 23:34:57,783 INFO L226 Difference]: Without dead ends: 23 [2019-11-27 23:34:57,784 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2019-11-27 23:34:57,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-27 23:34:57,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-27 23:34:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-27 23:34:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2019-11-27 23:34:57,791 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 11 [2019-11-27 23:34:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:57,792 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2019-11-27 23:34:57,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-27 23:34:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2019-11-27 23:34:57,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:34:57,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:57,793 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:58,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:34:58,006 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:58,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:58,006 INFO L82 PathProgramCache]: Analyzing trace with hash -2079313263, now seen corresponding path program 1 times [2019-11-27 23:34:58,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:58,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666623748] [2019-11-27 23:34:58,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 23:34:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:58,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-27 23:34:58,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:58,563 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2019-11-27 23:34:58,565 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:58,567 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:58,567 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:58,569 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:58,570 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:34:58,570 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:48, output treesize:6 [2019-11-27 23:34:58,671 INFO L343 Elim1Store]: treesize reduction 16, result has 74.6 percent of original size [2019-11-27 23:34:58,672 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 70 [2019-11-27 23:34:58,673 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:58,724 INFO L588 ElimStorePlain]: treesize reduction 36, result has 35.7 percent of original size [2019-11-27 23:34:58,725 INFO L508 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:58,726 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:32, output treesize:20 [2019-11-27 23:34:58,903 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-11-27 23:34:58,904 INFO L343 Elim1Store]: treesize reduction 16, result has 83.7 percent of original size [2019-11-27 23:34:58,905 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 103 [2019-11-27 23:34:58,907 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:58,976 INFO L588 ElimStorePlain]: treesize reduction 50, result has 33.3 percent of original size [2019-11-27 23:34:58,978 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:58,978 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:25 [2019-11-27 23:34:59,155 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-11-27 23:34:59,155 INFO L343 Elim1Store]: treesize reduction 16, result has 83.7 percent of original size [2019-11-27 23:34:59,156 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 31 treesize of output 103 [2019-11-27 23:34:59,158 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:59,334 WARN L192 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2019-11-27 23:34:59,335 INFO L588 ElimStorePlain]: treesize reduction 50, result has 55.8 percent of original size [2019-11-27 23:34:59,350 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2019-11-27 23:34:59,350 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:59,378 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:59,380 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:59,380 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:73, output treesize:67 [2019-11-27 23:34:59,524 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:59,525 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 25 treesize of output 57 [2019-11-27 23:34:59,526 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:59,680 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-11-27 23:34:59,681 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:59,770 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:34:59,771 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 122 [2019-11-27 23:34:59,772 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:34:59,929 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-11-27 23:34:59,930 INFO L588 ElimStorePlain]: treesize reduction 44, result has 70.9 percent of original size [2019-11-27 23:34:59,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:59,933 INFO L508 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-27 23:34:59,933 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:131, output treesize:112 [2019-11-27 23:34:59,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:00,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:00,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:35:00,044 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 42 [2019-11-27 23:35:00,046 INFO L508 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-27 23:35:00,059 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-27 23:35:00,092 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:35:00,094 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 101 treesize of output 73 [2019-11-27 23:35:00,095 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:35:00,145 INFO L588 ElimStorePlain]: treesize reduction 50, result has 42.5 percent of original size [2019-11-27 23:35:00,146 INFO L508 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-27 23:35:00,147 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:232, output treesize:25 [2019-11-27 23:35:00,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:35:00,184 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:35:04,967 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:35:04,968 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 761 treesize of output 686 [2019-11-27 23:35:05,004 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:35:05,005 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 38 [2019-11-27 23:35:05,005 INFO L508 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-27 23:35:05,231 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 63 [2019-11-27 23:35:05,233 INFO L588 ElimStorePlain]: treesize reduction 523, result has 20.6 percent of original size [2019-11-27 23:35:05,354 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2019-11-27 23:35:05,355 INFO L343 Elim1Store]: treesize reduction 45, result has 58.3 percent of original size [2019-11-27 23:35:05,355 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 104 treesize of output 130 [2019-11-27 23:35:05,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,411 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-27 23:35:05,411 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 128 [2019-11-27 23:35:05,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,418 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,461 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,472 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:35:05,481 INFO L404 ElimStorePlain]: Different costs {0=[v_arrayElimCell_76, v_arrayElimCell_77], 3=[v_arrayElimCell_75]} [2019-11-27 23:35:05,688 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:35:05,689 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: This case should habe been handled by DER at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.(DerPreprocessor.java:95) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:303) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:264) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:565) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:478) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-27 23:35:05,696 INFO L168 Benchmark]: Toolchain (without parser) took 25872.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.7 MB). Free memory was 961.7 MB in the beginning and 908.2 MB in the end (delta: 53.5 MB). Peak memory consumption was 241.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:05,696 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:35:05,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:05,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:35:05,698 INFO L168 Benchmark]: Boogie Preprocessor took 48.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:05,699 INFO L168 Benchmark]: RCFGBuilder took 675.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:05,700 INFO L168 Benchmark]: TraceAbstraction took 24561.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 908.2 MB in the end (delta: 152.2 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:35:05,709 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 513.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.63 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 675.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 24561.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 75.0 MB). Free memory was 1.1 GB in the beginning and 908.2 MB in the end (delta: 152.2 MB). Peak memory consumption was 227.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: This case should habe been handled by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: This case should habe been handled by DER: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.DerPreprocessor.classify(DerPreprocessor.java:212) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...