./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 701f399f 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/nla-digbench/freire2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 30689778d55a79f9fe352193122f8e3d18bcc1bb ................................................................................................................................................................................................................................. 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/nla-digbench/freire2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 30689778d55a79f9fe352193122f8e3d18bcc1bb .................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-701f399 [2019-11-22 09:34:21,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:34:21,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:34:21,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:34:21,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:34:21,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:34:21,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:34:21,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:34:21,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:34:21,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:34:21,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:34:21,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:34:21,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:34:21,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:34:21,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:34:21,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:34:21,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:34:21,801 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:34:21,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:34:21,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:34:21,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:34:21,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:34:21,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:34:21,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:34:21,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:34:21,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:34:21,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:34:21,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:34:21,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:34:21,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:34:21,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:34:21,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:34:21,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:34:21,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:34:21,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:34:21,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:34:21,834 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:34:21,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:34:21,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:34:21,835 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:34:21,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:34:21,837 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-22 09:34:21,851 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:34:21,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:34:21,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:34:21,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:34:21,854 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:34:21,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:34:21,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:34:21,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:34:21,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 09:34:21,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:34:21,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 09:34:21,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 09:34:21,856 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:34:21,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 09:34:21,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:34:21,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:34:21,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:34:21,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:34:21,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:34:21,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:34:21,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:34:21,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 09:34:21,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 09:34:21,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 09:34:21,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 09:34:21,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:34:21,860 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30689778d55a79f9fe352193122f8e3d18bcc1bb [2019-11-22 09:34:22,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:34:22,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:34:22,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:34:22,218 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:34:22,218 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:34:22,219 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire2.c [2019-11-22 09:34:22,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a84e102/e8c7750631a44ebbb65a3f05d8e05aaf/FLAG47a6ae2df [2019-11-22 09:34:22,768 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:34:22,771 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire2.c [2019-11-22 09:34:22,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a84e102/e8c7750631a44ebbb65a3f05d8e05aaf/FLAG47a6ae2df [2019-11-22 09:34:23,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6a84e102/e8c7750631a44ebbb65a3f05d8e05aaf [2019-11-22 09:34:23,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:34:23,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 09:34:23,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:23,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:34:23,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:34:23,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78bb153b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23, skipping insertion in model container [2019-11-22 09:34:23,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:34:23,173 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:34:23,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:23,452 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:34:23,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:23,595 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:34:23,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23 WrapperNode [2019-11-22 09:34:23,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:23,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:23,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 09:34:23,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 09:34:23,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:23,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:34:23,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:34:23,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:34:23,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (1/1) ... [2019-11-22 09:34:23,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:34:23,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:34:23,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:34:23,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:34:23,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (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 [2019-11-22 09:34:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:34:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:34:24,112 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:34:24,113 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-22 09:34:24,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:24 BoogieIcfgContainer [2019-11-22 09:34:24,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:34:24,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:34:24,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:34:24,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:34:24,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:23" (1/3) ... [2019-11-22 09:34:24,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec1abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:24, skipping insertion in model container [2019-11-22 09:34:24,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:23" (2/3) ... [2019-11-22 09:34:24,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec1abf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:24, skipping insertion in model container [2019-11-22 09:34:24,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:24" (3/3) ... [2019-11-22 09:34:24,122 INFO L109 eAbstractionObserver]: Analyzing ICFG freire2.c [2019-11-22 09:34:24,135 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:34:24,142 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-22 09:34:24,158 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-22 09:34:24,190 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:34:24,190 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 09:34:24,191 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:34:24,191 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:34:24,192 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:34:24,192 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:34:24,192 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:34:24,192 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:34:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-22 09:34:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-22 09:34:24,217 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:34:24,217 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-22 09:34:24,218 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:34:24,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:34:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-22 09:34:24,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-22 09:34:24,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76423930] [2019-11-22 09:34:24,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-22 09:34:24,321 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-22 09:34:24,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786301515] [2019-11-22 09:34:24,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-22 09:34:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:34:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:34:24,387 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-22 09:34:24,388 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 09:34:24,589 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-22 09:34:24,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:34:24 BoogieIcfgContainer [2019-11-22 09:34:24,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 09:34:24,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 09:34:24,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 09:34:24,609 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 09:34:24,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:24" (3/4) ... [2019-11-22 09:34:24,615 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 09:34:24,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 09:34:24,618 INFO L168 Benchmark]: Toolchain (without parser) took 1481.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -93.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:24,619 INFO L168 Benchmark]: CDTParser took 0.49 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. [2019-11-22 09:34:24,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:24,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.41 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. [2019-11-22 09:34:24,622 INFO L168 Benchmark]: Boogie Preprocessor took 69.70 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. [2019-11-22 09:34:24,623 INFO L168 Benchmark]: RCFGBuilder took 358.34 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:24,624 INFO L168 Benchmark]: TraceAbstraction took 492.65 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:24,624 INFO L168 Benchmark]: Witness Printer took 7.38 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. [2019-11-22 09:34:24,629 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 459.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -135.0 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.41 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 69.70 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 358.34 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: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 492.65 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 7.38 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 28. Possible FailurePath: [L20] int r; [L21] double a, x, s; [L22] a = __VERIFIER_nondet_double() [L23] x = a [L24] s = 3.25 [L25] r = 1 [L27] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.4s, 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=30occurred 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, 4 NumberOfCodeBlocks, 4 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 0.1.24-701f399 [2019-11-22 09:34:26,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:34:26,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:34:26,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:34:26,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:34:26,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:34:26,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:34:26,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:34:26,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:34:26,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:34:26,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:34:26,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:34:26,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:34:26,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:34:26,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:34:26,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:34:26,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:34:26,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:34:26,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:34:26,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:34:26,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:34:26,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:34:26,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:34:26,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:34:26,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:34:26,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:34:26,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:34:26,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:34:26,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:34:26,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:34:26,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:34:26,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:34:26,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:34:26,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:34:26,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:34:26,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:34:26,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:34:26,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:34:26,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:34:26,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:34:26,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:34:26,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-22 09:34:26,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:34:26,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:34:26,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:34:26,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:34:26,775 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:34:26,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:34:26,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:34:26,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 09:34:26,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:34:26,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 09:34:26,778 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:34:26,778 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:34:26,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:34:26,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 09:34:26,780 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:34:26,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 09:34:26,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:34:26,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:34:26,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:34:26,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:34:26,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:34:26,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:34:26,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:34:26,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 09:34:26,782 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:34:26,783 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:34:26,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 09:34:26,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:34:26,783 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-22 09:34:26,784 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30689778d55a79f9fe352193122f8e3d18bcc1bb [2019-11-22 09:34:27,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:34:27,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:34:27,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:34:27,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:34:27,114 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:34:27,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire2.c [2019-11-22 09:34:27,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795c0f745/552db97ede6c4222943c920ea46f73b0/FLAG2d36eb8e6 [2019-11-22 09:34:27,692 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:34:27,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire2.c [2019-11-22 09:34:27,702 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795c0f745/552db97ede6c4222943c920ea46f73b0/FLAG2d36eb8e6 [2019-11-22 09:34:28,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/795c0f745/552db97ede6c4222943c920ea46f73b0 [2019-11-22 09:34:28,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:34:28,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 09:34:28,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:28,127 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:34:28,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:34:28,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65aa4a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28, skipping insertion in model container [2019-11-22 09:34:28,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:34:28,162 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:34:28,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:28,387 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:34:28,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:28,488 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:34:28,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28 WrapperNode [2019-11-22 09:34:28,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:28,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:28,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 09:34:28,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 09:34:28,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:28,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:34:28,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:34:28,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:34:28,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (1/1) ... [2019-11-22 09:34:28,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:34:28,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:34:28,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:34:28,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:34:28,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (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 [2019-11-22 09:34:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:34:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:34:37,846 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:34:37,846 INFO L284 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-22 09:34:37,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:37 BoogieIcfgContainer [2019-11-22 09:34:37,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:34:37,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:34:37,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:34:37,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:34:37,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:28" (1/3) ... [2019-11-22 09:34:37,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1057bcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:37, skipping insertion in model container [2019-11-22 09:34:37,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:28" (2/3) ... [2019-11-22 09:34:37,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1057bcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:37, skipping insertion in model container [2019-11-22 09:34:37,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:37" (3/3) ... [2019-11-22 09:34:37,856 INFO L109 eAbstractionObserver]: Analyzing ICFG freire2.c [2019-11-22 09:34:37,866 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:34:37,874 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-22 09:34:37,886 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-22 09:34:37,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:34:37,912 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 09:34:37,912 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:34:37,912 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:34:37,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:34:37,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:34:37,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:34:37,913 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:34:37,928 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-22 09:34:37,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-22 09:34:37,933 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:34:37,934 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-22 09:34:37,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:34:37,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:34:37,939 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-22 09:34:37,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:34:37,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424817891] [2019-11-22 09:34:37,949 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 [2019-11-22 09:34:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:34:38,081 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:34:38,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:34:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:34:38,205 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:34:41,324 WARN L192 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-11-22 09:34:41,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:34:41,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424817891] [2019-11-22 09:34:41,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:34:41,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-22 09:34:41,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626700167] [2019-11-22 09:34:41,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:34:41,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:34:41,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:34:41,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:34:41,366 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2019-11-22 09:35:01,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:35:01,372 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2019-11-22 09:35:01,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-22 09:35:01,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2019-11-22 09:35:01,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:35:01,385 INFO L225 Difference]: With dead ends: 67 [2019-11-22 09:35:01,386 INFO L226 Difference]: Without dead ends: 34 [2019-11-22 09:35:01,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-11-22 09:35:01,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-22 09:35:01,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2019-11-22 09:35:01,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-22 09:35:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-11-22 09:35:01,428 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 5 [2019-11-22 09:35:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:35:01,429 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-11-22 09:35:01,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:35:01,429 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-11-22 09:35:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-22 09:35:01,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:35:01,430 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:35:01,632 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-22 09:35:01,633 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:35:01,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:35:01,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1810815341, now seen corresponding path program 1 times [2019-11-22 09:35:01,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:35:01,638 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079413430] [2019-11-22 09:35:01,638 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 [2019-11-22 09:35:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:35:02,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:35:02,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:35:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:35:03,874 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:35:18,472 WARN L192 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 23 [2019-11-22 09:35:19,060 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_11 (_ FloatingPoint 11 53))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)) v_ULTIMATE.start_main_~a~0_11))) (fp.sub c_currentRoundingMode .cse0 .cse0))))) is different from false [2019-11-22 09:35:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:35:19,291 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079413430] [2019-11-22 09:35:19,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:35:19,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-22 09:35:19,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970575929] [2019-11-22 09:35:19,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:35:19,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:35:19,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:35:19,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2019-11-22 09:35:19,295 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 8 states. [2019-11-22 09:35:26,827 WARN L192 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 14 [2019-11-22 09:35:30,836 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~x~0 c_ULTIMATE.start_main_~a~0) (= (_ bv1 32) c_ULTIMATE.start_main_~r~0) (= (_ bv1 32) (bvadd (bvmul (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv4 32)) c_ULTIMATE.start_main_~r~0) c_ULTIMATE.start_main_~r~0) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-22 09:36:17,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:17,928 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-22 09:36:17,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:36:17,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-22 09:36:17,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:17,931 INFO L225 Difference]: With dead ends: 32 [2019-11-22 09:36:17,931 INFO L226 Difference]: Without dead ends: 29 [2019-11-22 09:36:17,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=23, Invalid=53, Unknown=4, NotChecked=30, Total=110 [2019-11-22 09:36:17,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-22 09:36:17,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-22 09:36:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-22 09:36:17,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-11-22 09:36:17,950 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 7 [2019-11-22 09:36:17,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:17,950 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-11-22 09:36:17,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:36:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-11-22 09:36:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-22 09:36:17,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:17,955 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:18,166 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-22 09:36:18,168 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:36:18,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:18,169 INFO L82 PathProgramCache]: Analyzing trace with hash 731943696, now seen corresponding path program 1 times [2019-11-22 09:36:18,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:18,170 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726111435] [2019-11-22 09:36:18,171 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 [2019-11-22 09:36:19,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:36:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:36:21,012 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-22 09:36:21,012 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 09:36:21,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-22 09:36:21,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:36:21 BoogieIcfgContainer [2019-11-22 09:36:21,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 09:36:21,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 09:36:21,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 09:36:21,240 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 09:36:21,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:37" (3/4) ... [2019-11-22 09:36:21,243 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-22 09:36:21,293 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 09:36:21,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 09:36:21,295 INFO L168 Benchmark]: Toolchain (without parser) took 113170.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 956.3 MB in the beginning and 957.4 MB in the end (delta: -1.1 MB). Peak memory consumption was 74.4 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:21,296 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-22 09:36:21,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -108.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:21,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.75 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. [2019-11-22 09:36:21,299 INFO L168 Benchmark]: Boogie Preprocessor took 29.93 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. [2019-11-22 09:36:21,300 INFO L168 Benchmark]: RCFGBuilder took 9286.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:21,300 INFO L168 Benchmark]: TraceAbstraction took 103390.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 957.4 MB in the end (delta: 84.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:21,301 INFO L168 Benchmark]: Witness Printer took 53.93 ms. Allocated memory is still 1.1 GB. Free memory is still 957.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:36:21,306 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 362.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 75.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -108.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.75 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 29.93 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. * RCFGBuilder took 9286.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 103390.23 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 957.4 MB in the end (delta: 84.9 MB). Peak memory consumption was 84.9 MB. Max. memory is 11.5 GB. * Witness Printer took 53.93 ms. Allocated memory is still 1.1 GB. Free memory is still 957.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] int r; [L21] double a, x, s; [L22] a = __VERIFIER_nondet_double() [L23] x = a [L24] s = 3.25 [L25] r = 1 [L27] COND TRUE 1 [L12] COND FALSE !(!(cond)) [L12] COND FALSE !(!(cond)) [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 6 error locations. Result: UNSAFE, OverallTime: 103.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 78.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 40 SDslu, 71 SDs, 0 SdLazy, 80 SolverSat, 20 SolverUnsat, 21 SolverUnknown, 0 SolverNotchecked, 67.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 1 QuantifiedInterpolants, 1208 SizeOfPredicates, 11 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...