./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/freire1.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 7bbf493367f04273903fe42843aed19d0c539d5d .................................................................................................................................................................................................................................................... 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 -ea -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/freire1.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 7bbf493367f04273903fe42843aed19d0c539d5d ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: Tracecheck IpTcStrategyModuleMathsat [2124888492] said UNSAT, interpolant generator IpTcStrategyModuleCvc4 [1120569405] failed with TRACE_FEASIBLE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:27:15,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:27:15,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:27:15,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:27:15,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:27:15,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:27:15,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:27:15,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:27:15,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:27:15,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:27:15,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:27:15,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:27:15,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:27:15,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:27:15,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:27:15,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:27:15,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:27:15,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:27:15,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:27:15,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:27:15,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:27:15,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:27:15,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:27:15,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:27:15,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:27:15,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:27:15,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:27:15,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:27:15,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:27:15,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:27:15,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:27:15,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:27:15,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:27:15,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:27:15,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:27:15,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:27:15,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:27:15,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:27:15,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:27:15,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:27:15,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:27:15,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:27:15,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:27:15,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:27:15,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:27:15,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:27:15,859 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:27:15,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:27:15,860 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:27:15,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:27:15,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:27:15,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:27:15,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:27:15,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:27:15,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:27:15,862 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:27:15,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:27:15,862 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:27:15,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:27:15,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:27:15,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:27:15,863 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:27:15,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:27:15,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:27:15,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:27:15,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:27:15,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:27:15,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:27:15,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:27:15,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:27:15,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:27:15,866 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 -> 7bbf493367f04273903fe42843aed19d0c539d5d [2020-07-28 18:27:16,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:27:16,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:27:16,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:27:16,222 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:27:16,223 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:27:16,224 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2020-07-28 18:27:16,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bd6ecc1/4079918356a94a0ebeea32ae14f7ccd1/FLAG2dc93f830 [2020-07-28 18:27:16,753 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:27:16,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2020-07-28 18:27:16,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bd6ecc1/4079918356a94a0ebeea32ae14f7ccd1/FLAG2dc93f830 [2020-07-28 18:27:17,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74bd6ecc1/4079918356a94a0ebeea32ae14f7ccd1 [2020-07-28 18:27:17,138 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:27:17,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:27:17,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:27:17,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:27:17,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:27:17,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6adaf6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17, skipping insertion in model container [2020-07-28 18:27:17,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:27:17,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:27:17,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:27:17,440 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:27:17,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:27:17,489 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:27:17,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17 WrapperNode [2020-07-28 18:27:17,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:27:17,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:27:17,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:27:17,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:27:17,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:27:17,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:27:17,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:27:17,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:27:17,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... [2020-07-28 18:27:17,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:27:17,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:27:17,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:27:17,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:27:17,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:27:17,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:27:17,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:27:17,943 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:27:17,944 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-28 18:27:17,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:27:17 BoogieIcfgContainer [2020-07-28 18:27:17,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:27:17,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:27:17,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:27:17,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:27:17,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:27:17" (1/3) ... [2020-07-28 18:27:17,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ddc523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:27:17, skipping insertion in model container [2020-07-28 18:27:17,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:17" (2/3) ... [2020-07-28 18:27:17,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ddc523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:27:17, skipping insertion in model container [2020-07-28 18:27:17,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:27:17" (3/3) ... [2020-07-28 18:27:17,961 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2020-07-28 18:27:17,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:27:17,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-28 18:27:18,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-28 18:27:18,041 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:27:18,041 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:27:18,041 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:27:18,041 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:27:18,042 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:27:18,042 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:27:18,042 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:27:18,042 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:27:18,055 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-07-28 18:27:18,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 18:27:18,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:27:18,061 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 18:27:18,061 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:27:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:27:18,067 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2020-07-28 18:27:18,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:27:18,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437188197] [2020-07-28 18:27:18,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:27:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:27:18,161 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:27:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:27:18,170 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:27:18,186 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 18:27:18,187 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 18:27:18,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:27:18,208 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:27:18,208 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 18:27:18,209 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 18:27:18,209 WARN L170 areAnnotationChecker]: L29-2 has no Hoare annotation [2020-07-28 18:27:18,209 WARN L170 areAnnotationChecker]: L29-3 has no Hoare annotation [2020-07-28 18:27:18,209 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 18:27:18,210 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2020-07-28 18:27:18,210 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:27:18,210 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 18:27:18,210 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 18:27:18,211 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 18:27:18,211 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 18:27:18,211 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 18:27:18,212 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 18:27:18,212 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 18:27:18,212 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 18:27:18,212 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-28 18:27:18,213 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:27:18,213 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:27:18,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:27:18 BoogieIcfgContainer [2020-07-28 18:27:18,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:27:18,217 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:27:18,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:27:18,217 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:27:18,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:27:17" (3/4) ... [2020-07-28 18:27:18,222 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 18:27:18,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:27:18,227 INFO L168 Benchmark]: Toolchain (without parser) took 1085.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -138.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:18,228 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:27:18,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:18,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:18,231 INFO L168 Benchmark]: Boogie Preprocessor took 25.89 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. [2020-07-28 18:27:18,232 INFO L168 Benchmark]: RCFGBuilder took 321.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:18,233 INFO L168 Benchmark]: TraceAbstraction took 266.11 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:18,234 INFO L168 Benchmark]: Witness Printer took 6.09 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. [2020-07-28 18:27:18,238 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 344.01 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -188.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.89 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 321.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 266.11 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Witness Printer took 6.09 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: 17]: 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 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 26. Possible FailurePath: [L23] int r; [L24] double a, x; [L25] a = __VERIFIER_nondet_double() [L26] x = a / 2.0 [L27] r = 0 [L29] COND TRUE 1 [L15] COND TRUE !(cond) [L17] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:27:20,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:27:20,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:27:20,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:27:20,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:27:20,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:27:20,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:27:20,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:27:20,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:27:20,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:27:20,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:27:20,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:27:20,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:27:20,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:27:20,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:27:20,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:27:20,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:27:20,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:27:20,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:27:20,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:27:20,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:27:20,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:27:20,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:27:20,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:27:20,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:27:20,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:27:20,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:27:20,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:27:20,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:27:20,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:27:20,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:27:20,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:27:20,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:27:20,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:27:20,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:27:20,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:27:20,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:27:20,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:27:20,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:27:20,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:27:20,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:27:20,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 18:27:20,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:27:20,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:27:20,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:27:20,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:27:20,398 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:27:20,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:27:20,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:27:20,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:27:20,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:27:20,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:27:20,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:27:20,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:27:20,400 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 18:27:20,400 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 18:27:20,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:27:20,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:27:20,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:27:20,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:27:20,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:27:20,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:27:20,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:27:20,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:27:20,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:27:20,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:27:20,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:27:20,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:27:20,404 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 18:27:20,404 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 18:27:20,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:27:20,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:27:20,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 18:27:20,405 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 -> 7bbf493367f04273903fe42843aed19d0c539d5d [2020-07-28 18:27:20,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:27:20,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:27:20,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:27:20,745 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:27:20,747 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:27:20,748 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2020-07-28 18:27:20,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29c37eff/f22e470f433b46d1b2b94ef1a31b67ba/FLAG4844165fb [2020-07-28 18:27:21,241 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:27:21,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2020-07-28 18:27:21,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29c37eff/f22e470f433b46d1b2b94ef1a31b67ba/FLAG4844165fb [2020-07-28 18:27:21,613 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e29c37eff/f22e470f433b46d1b2b94ef1a31b67ba [2020-07-28 18:27:21,617 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:27:21,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:27:21,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:27:21,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:27:21,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:27:21,628 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,631 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4f4922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21, skipping insertion in model container [2020-07-28 18:27:21,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:27:21,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:27:21,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:27:21,849 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:27:21,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:27:21,887 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:27:21,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21 WrapperNode [2020-07-28 18:27:21,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:27:21,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:27:21,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:27:21,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:27:21,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:27:21,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:27:21,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:27:21,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:27:21,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:21,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:22,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:22,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:22,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... [2020-07-28 18:27:22,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:27:22,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:27:22,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:27:22,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:27:22,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:27:22,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:27:22,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:27:27,156 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:27:27,157 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-28 18:27:27,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:27:27 BoogieIcfgContainer [2020-07-28 18:27:27,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:27:27,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:27:27,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:27:27,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:27:27,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:27:21" (1/3) ... [2020-07-28 18:27:27,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6662f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:27:27, skipping insertion in model container [2020-07-28 18:27:27,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:27:21" (2/3) ... [2020-07-28 18:27:27,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eb6662f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:27:27, skipping insertion in model container [2020-07-28 18:27:27,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:27:27" (3/3) ... [2020-07-28 18:27:27,168 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2020-07-28 18:27:27,177 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:27:27,183 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-28 18:27:27,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-28 18:27:27,219 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:27:27,219 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:27:27,219 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:27:27,219 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:27:27,220 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:27:27,220 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:27:27,220 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:27:27,221 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:27:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-28 18:27:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 18:27:27,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:27:27,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 18:27:27,245 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:27:27,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:27:27,250 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2020-07-28 18:27:27,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 18:27:27,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124888492] [2020-07-28 18:27:27,264 INFO L95 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 [2020-07-28 18:27:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:27:29,232 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 18:27:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2020-07-28 18:27:31,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 18:27:34,233 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 13 [2020-07-28 18:27:37,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} currentRoundingMode := ~roundNearestTiesToEven; {23#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2020-07-28 18:27:37,225 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#(= currentRoundingMode roundNearestTiesToEven)} havoc main_#res;havoc main_#t~nondet0, main_~r~0, main_~a~0, main_~x~0;havoc main_~r~0;havoc main_~a~0;havoc main_~x~0;main_~a~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, main_~a~0, ~to_fp~DOUBLE(currentRoundingMode, 2.0));main_~r~0 := 0bv32; {27#(and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0)) ULTIMATE.start_main_~x~0) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 18:27:37,393 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#(and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0)) ULTIMATE.start_main_~x~0) (= currentRoundingMode roundNearestTiesToEven))} assume !false;__VERIFIER_assert_#in~cond := (if 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(currentRoundingMode, ~fp.sub~DOUBLE(currentRoundingMode, ~fp.sub~DOUBLE(currentRoundingMode, ~convertINTToDOUBLE(currentRoundingMode, ~bvmul32(main_~r~0, main_~r~0)), main_~a~0), ~convertINTToDOUBLE(currentRoundingMode, main_~r~0)), ~fp.mul~DOUBLE(currentRoundingMode, ~convertINTToDOUBLE(currentRoundingMode, 2bv32), main_~x~0))) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {31#(or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} is VALID [2020-07-28 18:27:37,393 INFO L280 TraceCheckUtils]: 3: Hoare triple {31#(or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))} assume 0bv32 == __VERIFIER_assert_~cond; {18#true} is VALID [2020-07-28 18:27:37,394 INFO L280 TraceCheckUtils]: 4: Hoare triple {18#true} assume !false; {19#false} is INVALID [2020-07-28 18:27:37,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124888492] [2020-07-28 18:27:37,396 WARN L333 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: invalid Hoare triple in FP [2020-07-28 18:27:37,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1120569405] [2020-07-28 18:27:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-07-28 18:27:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:27:38,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:27:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 18:27:39,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 18:27:39,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,2 mathsat -unsat_core_generation=3 [2020-07-28 18:27:39,561 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: Tracecheck IpTcStrategyModuleMathsat [2124888492] said UNSAT, interpolant generator IpTcStrategyModuleCvc4 [1120569405] failed with TRACE_FEASIBLE at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:327) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 18:27:39,570 INFO L168 Benchmark]: Toolchain (without parser) took 17949.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -129.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,570 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:27:39,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.95 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,578 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,579 INFO L168 Benchmark]: Boogie Preprocessor took 35.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,582 INFO L168 Benchmark]: RCFGBuilder took 5140.35 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,584 INFO L168 Benchmark]: TraceAbstraction took 12404.95 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:27:39,592 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.95 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5140.35 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12404.95 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: Tracecheck IpTcStrategyModuleMathsat [2124888492] said UNSAT, interpolant generator IpTcStrategyModuleCvc4 [1120569405] failed with TRACE_FEASIBLE de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: Tracecheck IpTcStrategyModuleMathsat [2124888492] said UNSAT, interpolant generator IpTcStrategyModuleCvc4 [1120569405] failed with TRACE_FEASIBLE: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:327) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...