./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c9c8a757 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-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 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-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 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-c9c8a75 [2019-11-28 09:48:42,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 09:48:42,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 09:48:42,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 09:48:42,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 09:48:42,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 09:48:42,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 09:48:42,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 09:48:42,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 09:48:42,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 09:48:42,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 09:48:42,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 09:48:42,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 09:48:42,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 09:48:42,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 09:48:42,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 09:48:42,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 09:48:42,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 09:48:42,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 09:48:42,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 09:48:42,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 09:48:42,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 09:48:42,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 09:48:42,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 09:48:42,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 09:48:42,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 09:48:42,776 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 09:48:42,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 09:48:42,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 09:48:42,778 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 09:48:42,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 09:48:42,779 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 09:48:42,780 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 09:48:42,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 09:48:42,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 09:48:42,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 09:48:42,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 09:48:42,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 09:48:42,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 09:48:42,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 09:48:42,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 09:48:42,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 09:48:42,803 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 09:48:42,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 09:48:42,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 09:48:42,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 09:48:42,805 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 09:48:42,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 09:48:42,806 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 09:48:42,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 09:48:42,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 09:48:42,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 09:48:42,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 09:48:42,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 09:48:42,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 09:48:42,808 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 09:48:42,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 09:48:42,809 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 09:48:42,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 09:48:42,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 09:48:42,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 09:48:42,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 09:48:42,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 09:48:42,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 09:48:42,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 09:48:42,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 09:48:42,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 09:48:42,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 09:48:42,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 09:48:42,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 09:48:42,813 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 -> 30689778d55a79f9fe352193122f8e3d18bcc1bb [2019-11-28 09:48:43,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 09:48:43,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 09:48:43,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 09:48:43,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 09:48:43,156 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 09:48:43,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire2.c [2019-11-28 09:48:43,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d287feed/479520579a8a4b7a9a45825b94f3066e/FLAG60ce63f36 [2019-11-28 09:48:43,728 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 09:48:43,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire2.c [2019-11-28 09:48:43,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d287feed/479520579a8a4b7a9a45825b94f3066e/FLAG60ce63f36 [2019-11-28 09:48:44,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d287feed/479520579a8a4b7a9a45825b94f3066e [2019-11-28 09:48:44,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 09:48:44,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 09:48:44,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:44,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 09:48:44,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 09:48:44,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48a79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44, skipping insertion in model container [2019-11-28 09:48:44,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 09:48:44,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 09:48:44,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:44,332 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 09:48:44,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:44,429 INFO L208 MainTranslator]: Completed translation [2019-11-28 09:48:44,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44 WrapperNode [2019-11-28 09:48:44,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:44,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:44,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 09:48:44,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 09:48:44,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:44,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 09:48:44,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 09:48:44,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 09:48:44,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (1/1) ... [2019-11-28 09:48:44,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 09:48:44,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 09:48:44,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 09:48:44,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 09:48:44,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (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 [2019-11-28 09:48:44,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 09:48:44,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 09:48:44,823 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 09:48:44,824 INFO L297 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-28 09:48:44,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44 BoogieIcfgContainer [2019-11-28 09:48:44,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 09:48:44,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 09:48:44,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 09:48:44,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 09:48:44,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 09:48:44" (1/3) ... [2019-11-28 09:48:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5269aa93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:44, skipping insertion in model container [2019-11-28 09:48:44,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:44" (2/3) ... [2019-11-28 09:48:44,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5269aa93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:44, skipping insertion in model container [2019-11-28 09:48:44,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44" (3/3) ... [2019-11-28 09:48:44,849 INFO L109 eAbstractionObserver]: Analyzing ICFG freire2.c [2019-11-28 09:48:44,869 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 09:48:44,876 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 09:48:44,890 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 09:48:44,927 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 09:48:44,927 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 09:48:44,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 09:48:44,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 09:48:44,928 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 09:48:44,928 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 09:48:44,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 09:48:44,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 09:48:44,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-28 09:48:44,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 09:48:44,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:48:44,957 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 09:48:44,958 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]=== [2019-11-28 09:48:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:48:44,965 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 09:48:44,975 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 09:48:44,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952340274] [2019-11-28 09:48:44,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 09:48:45,045 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 09:48:45,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126876893] [2019-11-28 09:48:45,046 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 [2019-11-28 09:48:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:48:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:48:45,103 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 09:48:45,104 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 09:48:45,305 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 09:48:45,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 09:48:45 BoogieIcfgContainer [2019-11-28 09:48:45,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 09:48:45,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 09:48:45,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 09:48:45,329 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 09:48:45,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:44" (3/4) ... [2019-11-28 09:48:45,334 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 09:48:45,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 09:48:45,339 INFO L168 Benchmark]: Toolchain (without parser) took 1218.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -133.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:45,340 INFO L168 Benchmark]: CDTParser took 0.26 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. [2019-11-28 09:48:45,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:45,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.15 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. [2019-11-28 09:48:45,344 INFO L168 Benchmark]: Boogie Preprocessor took 24.69 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:45,346 INFO L168 Benchmark]: RCFGBuilder took 331.08 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:45,347 INFO L168 Benchmark]: TraceAbstraction took 496.06 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-28 09:48:45,348 INFO L168 Benchmark]: Witness Printer took 7.42 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. [2019-11-28 09:48:45,356 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 311.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.15 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. * Boogie Preprocessor took 24.69 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.08 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: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 496.06 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.42 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.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: 0.3s, 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-c9c8a75 [2019-11-28 09:48:47,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 09:48:47,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 09:48:47,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 09:48:47,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 09:48:47,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 09:48:47,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 09:48:47,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 09:48:47,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 09:48:47,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 09:48:47,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 09:48:47,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 09:48:47,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 09:48:47,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 09:48:47,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 09:48:47,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 09:48:47,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 09:48:47,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 09:48:47,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 09:48:47,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 09:48:47,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 09:48:47,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 09:48:47,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 09:48:47,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 09:48:47,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 09:48:47,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 09:48:47,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 09:48:47,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 09:48:47,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 09:48:47,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 09:48:47,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 09:48:47,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 09:48:47,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 09:48:47,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 09:48:47,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 09:48:47,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 09:48:47,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 09:48:47,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 09:48:47,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 09:48:47,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 09:48:47,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 09:48:47,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 09:48:47,371 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 09:48:47,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 09:48:47,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 09:48:47,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 09:48:47,373 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 09:48:47,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 09:48:47,374 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 09:48:47,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 09:48:47,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 09:48:47,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 09:48:47,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 09:48:47,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 09:48:47,375 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 09:48:47,375 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 09:48:47,376 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 09:48:47,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 09:48:47,376 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 09:48:47,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 09:48:47,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 09:48:47,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 09:48:47,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 09:48:47,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 09:48:47,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 09:48:47,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 09:48:47,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 09:48:47,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 09:48:47,379 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 09:48:47,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 09:48:47,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 09:48:47,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 09:48:47,380 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 -> 30689778d55a79f9fe352193122f8e3d18bcc1bb [2019-11-28 09:48:47,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 09:48:47,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 09:48:47,688 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 09:48:47,690 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 09:48:47,690 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 09:48:47,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire2.c [2019-11-28 09:48:47,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bcfcfdf/8fbc2b4909e043beb8287365334d7df2/FLAG283102de5 [2019-11-28 09:48:48,204 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 09:48:48,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire2.c [2019-11-28 09:48:48,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bcfcfdf/8fbc2b4909e043beb8287365334d7df2/FLAG283102de5 [2019-11-28 09:48:48,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75bcfcfdf/8fbc2b4909e043beb8287365334d7df2 [2019-11-28 09:48:48,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 09:48:48,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 09:48:48,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:48,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 09:48:48,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 09:48:48,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584170f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:48, skipping insertion in model container [2019-11-28 09:48:48,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:48:48" (1/1) ... [2019-11-28 09:48:48,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 09:48:48,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 09:48:48,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:48,893 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 09:48:48,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 09:48:49,017 INFO L208 MainTranslator]: Completed translation [2019-11-28 09:48:49,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49 WrapperNode [2019-11-28 09:48:49,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 09:48:49,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:49,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 09:48:49,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 09:48:49,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 09:48:49,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 09:48:49,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 09:48:49,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 09:48:49,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (1/1) ... [2019-11-28 09:48:49,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 09:48:49,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 09:48:49,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 09:48:49,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 09:48:49,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (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 [2019-11-28 09:48:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 09:48:49,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 09:48:59,138 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 09:48:59,138 INFO L297 CfgBuilder]: Removed 17 assume(true) statements. [2019-11-28 09:48:59,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:59 BoogieIcfgContainer [2019-11-28 09:48:59,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 09:48:59,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 09:48:59,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 09:48:59,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 09:48:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 09:48:48" (1/3) ... [2019-11-28 09:48:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5f9a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:59, skipping insertion in model container [2019-11-28 09:48:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:48:49" (2/3) ... [2019-11-28 09:48:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5f9a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 09:48:59, skipping insertion in model container [2019-11-28 09:48:59,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:59" (3/3) ... [2019-11-28 09:48:59,148 INFO L109 eAbstractionObserver]: Analyzing ICFG freire2.c [2019-11-28 09:48:59,158 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 09:48:59,165 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-11-28 09:48:59,178 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 09:48:59,202 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 09:48:59,202 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 09:48:59,202 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 09:48:59,202 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 09:48:59,203 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 09:48:59,203 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 09:48:59,203 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 09:48:59,203 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 09:48:59,219 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-11-28 09:48:59,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 09:48:59,225 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:48:59,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 09:48:59,226 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]=== [2019-11-28 09:48:59,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:48:59,232 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-28 09:48:59,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 09:48:59,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473535204] [2019-11-28 09:48:59,242 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 [2019-11-28 09:48:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 09:48:59,371 WARN L253 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 09:48:59,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 09:48:59,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:48:59,474 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 09:49:01,750 WARN L192 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-11-28 09:49:01,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:49:01,773 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473535204] [2019-11-28 09:49:01,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 09:49:01,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-28 09:49:01,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058755184] [2019-11-28 09:49:01,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 09:49:01,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 09:49:01,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 09:49:01,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-28 09:49:01,794 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2019-11-28 09:49:17,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 09:49:17,369 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2019-11-28 09:49:17,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 09:49:17,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 5 [2019-11-28 09:49:17,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 09:49:17,381 INFO L225 Difference]: With dead ends: 67 [2019-11-28 09:49:17,381 INFO L226 Difference]: Without dead ends: 34 [2019-11-28 09:49:17,385 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-11-28 09:49:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-28 09:49:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2019-11-28 09:49:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 09:49:17,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2019-11-28 09:49:17,423 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 5 [2019-11-28 09:49:17,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 09:49:17,424 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2019-11-28 09:49:17,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 09:49:17,424 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2019-11-28 09:49:17,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 09:49:17,425 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:49:17,425 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 09:49:17,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 09:49:17,640 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]=== [2019-11-28 09:49:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:49:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1810815341, now seen corresponding path program 1 times [2019-11-28 09:49:17,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 09:49:17,645 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671020752] [2019-11-28 09:49:17,645 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 [2019-11-28 09:49:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 09:49:18,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 09:49:18,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 09:49:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:49:19,963 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 09:49:22,024 WARN L838 $PredicateComparison]: unable to prove that (= (_ 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)))) is different from false [2019-11-28 09:49:24,065 WARN L860 $PredicateComparison]: unable to prove that (= (_ 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)))) is different from true [2019-11-28 09:49:24,641 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 [2019-11-28 09:49:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 09:49:25,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671020752] [2019-11-28 09:49:25,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 09:49:25,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-28 09:49:25,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134996434] [2019-11-28 09:49:25,140 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 09:49:25,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 09:49:25,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 09:49:25,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-28 09:49:25,141 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 8 states. [2019-11-28 09:49:29,411 WARN L192 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 14 [2019-11-28 09:49:33,349 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 [2019-11-28 09:49:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 09:49:48,016 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-28 09:49:48,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 09:49:48,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-28 09:49:48,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 09:49:48,019 INFO L225 Difference]: With dead ends: 32 [2019-11-28 09:49:48,020 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 09:49:48,021 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=23, Invalid=40, Unknown=5, NotChecked=42, Total=110 [2019-11-28 09:49:48,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 09:49:48,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2019-11-28 09:49:48,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-28 09:49:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-11-28 09:49:48,029 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 7 [2019-11-28 09:49:48,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 09:49:48,029 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-11-28 09:49:48,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 09:49:48,029 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-11-28 09:49:48,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 09:49:48,030 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 09:49:48,030 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 09:49:48,236 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 09:49:48,237 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]=== [2019-11-28 09:49:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 09:49:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash 731943696, now seen corresponding path program 1 times [2019-11-28 09:49:48,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 09:49:48,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608176826] [2019-11-28 09:49:48,241 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 [2019-11-28 09:49:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:49:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 09:49:50,941 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 09:49:50,941 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 09:49:51,142 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 09:49:51,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 09:49:51 BoogieIcfgContainer [2019-11-28 09:49:51,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 09:49:51,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 09:49:51,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 09:49:51,170 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 09:49:51,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:48:59" (3/4) ... [2019-11-28 09:49:51,181 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 09:49:51,242 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 09:49:51,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 09:49:51,243 INFO L168 Benchmark]: Toolchain (without parser) took 62641.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -76.5 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-11-28 09:49:51,244 INFO L168 Benchmark]: CDTParser took 0.36 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. [2019-11-28 09:49:51,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 09:49:51,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.90 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. [2019-11-28 09:49:51,246 INFO L168 Benchmark]: Boogie Preprocessor took 30.68 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. [2019-11-28 09:49:51,247 INFO L168 Benchmark]: RCFGBuilder took 10041.20 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-28 09:49:51,247 INFO L168 Benchmark]: TraceAbstraction took 52027.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. [2019-11-28 09:49:51,248 INFO L168 Benchmark]: Witness Printer took 73.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 09:49:51,251 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 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 414.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.90 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. * Boogie Preprocessor took 30.68 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 10041.20 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 52027.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.2 MB). Peak memory consumption was 80.2 MB. Max. memory is 11.5 GB. * Witness Printer took 73.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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: 51.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 40 SDslu, 66 SDs, 0 SdLazy, 72 SolverSat, 20 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 30.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 14.4s 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, 2.4s SatisfiabilityAnalysisTime, 8.7s 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...