./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-scaling/freire2_valuebound10.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 17:27:48,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 17:27:48,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 17:27:48,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 17:27:48,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 17:27:48,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 17:27:48,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 17:27:48,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 17:27:48,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 17:27:48,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 17:27:48,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 17:27:48,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 17:27:48,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 17:27:48,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 17:27:48,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 17:27:48,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 17:27:48,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 17:27:48,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 17:27:48,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 17:27:48,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 17:27:48,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 17:27:48,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 17:27:48,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 17:27:48,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 17:27:48,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 17:27:48,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 17:27:48,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 17:27:48,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 17:27:48,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 17:27:48,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 17:27:48,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 17:27:48,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 17:27:48,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 17:27:48,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 17:27:48,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 17:27:48,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 17:27:48,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 17:27:48,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 17:27:48,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 17:27:48,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 17:27:48,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 17:27:48,468 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 17:27:48,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 17:27:48,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 17:27:48,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 17:27:48,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 17:27:48,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 17:27:48,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 17:27:48,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 17:27:48,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 17:27:48,483 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 17:27:48,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 17:27:48,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 17:27:48,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 17:27:48,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 17:27:48,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 17:27:48,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 17:27:48,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 17:27:48,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 17:27:48,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 17:27:48,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 17:27:48,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 17:27:48,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 17:27:48,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 17:27:48,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 17:27:48,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 17:27:48,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 17:27:48,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 17:27:48,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 17:27:48,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 17:27:48,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 [2022-02-20 17:27:48,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 17:27:48,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 17:27:48,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 17:27:48,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 17:27:48,667 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 17:27:48,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2022-02-20 17:27:48,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5937e15dc/6abb8e793a55482aa9a58f74b7920453/FLAGb66ee237e [2022-02-20 17:27:48,999 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 17:27:48,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2022-02-20 17:27:49,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5937e15dc/6abb8e793a55482aa9a58f74b7920453/FLAGb66ee237e [2022-02-20 17:27:49,439 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5937e15dc/6abb8e793a55482aa9a58f74b7920453 [2022-02-20 17:27:49,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 17:27:49,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 17:27:49,443 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 17:27:49,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 17:27:49,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 17:27:49,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb976b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49, skipping insertion in model container [2022-02-20 17:27:49,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 17:27:49,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 17:27:49,581 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2022-02-20 17:27:49,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 17:27:49,618 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 17:27:49,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2022-02-20 17:27:49,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 17:27:49,646 INFO L208 MainTranslator]: Completed translation [2022-02-20 17:27:49,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49 WrapperNode [2022-02-20 17:27:49,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 17:27:49,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 17:27:49,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 17:27:49,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 17:27:49,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,673 INFO L137 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-02-20 17:27:49,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 17:27:49,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 17:27:49,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 17:27:49,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 17:27:49,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,686 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,697 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 17:27:49,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 17:27:49,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 17:27:49,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 17:27:49,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (1/1) ... [2022-02-20 17:27:49,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 17:27:49,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 17:27:49,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 17:27:49,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 17:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 17:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 17:27:49,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 17:27:49,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 17:27:49,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 17:27:49,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 17:27:49,838 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 17:27:49,839 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 17:27:49,918 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 17:27:49,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 17:27:49,923 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 17:27:49,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:27:49 BoogieIcfgContainer [2022-02-20 17:27:49,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 17:27:49,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 17:27:49,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 17:27:49,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 17:27:49,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 05:27:49" (1/3) ... [2022-02-20 17:27:49,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c327ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:27:49, skipping insertion in model container [2022-02-20 17:27:49,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:49" (2/3) ... [2022-02-20 17:27:49,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c327ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:27:49, skipping insertion in model container [2022-02-20 17:27:49,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:27:49" (3/3) ... [2022-02-20 17:27:49,931 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound10.c [2022-02-20 17:27:49,938 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 17:27:49,938 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 17:27:49,987 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 17:27:49,995 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 17:27:49,996 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 17:27:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-20 17:27:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 17:27:50,014 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 17:27:50,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 17:27:50,015 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 17:27:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 17:27:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -589224774, now seen corresponding path program 1 times [2022-02-20 17:27:50,024 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 17:27:50,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540332972] [2022-02-20 17:27:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 17:27:50,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 17:27:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 17:27:50,142 INFO L290 TraceCheckUtils]: 0: Hoare triple {25#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(10, 2);call #Ultimate.allocInit(12, 3); {25#true} is VALID [2022-02-20 17:27:50,142 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_~r~0#1, main_~a~0#1, main_~x~0#1, main_~s~0#1;havoc main_~r~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~s~0#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~someBinaryDOUBLEComparisonOperation(main_~a~0#1, ~convertINTToDOUBLE(0)) && ~someBinaryDOUBLEComparisonOperation(main_~a~0#1, ~convertINTToDOUBLE(10)) then 1 else 0);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {25#true} is VALID [2022-02-20 17:27:50,143 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} assume 0 == assume_abort_if_not_~cond#1;assume false; {26#false} is VALID [2022-02-20 17:27:50,144 INFO L290 TraceCheckUtils]: 3: Hoare triple {26#false} assume { :end_inline_assume_abort_if_not } true;main_~x~0#1 := main_~a~0#1;main_~s~0#1 := 3.25;main_~r~0#1 := 1; {26#false} is VALID [2022-02-20 17:27:50,144 INFO L290 TraceCheckUtils]: 4: Hoare triple {26#false} assume false; {26#false} is VALID [2022-02-20 17:27:50,144 INFO L272 TraceCheckUtils]: 5: Hoare triple {26#false} call __VERIFIER_assert((if 1 == ~convertDOUBLEToINT(~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(4), main_~s~0#1)) - 12 * main_~r~0#1 * main_~r~0#1 then 1 else 0)); {26#false} is VALID [2022-02-20 17:27:50,144 INFO L290 TraceCheckUtils]: 6: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2022-02-20 17:27:50,145 INFO L290 TraceCheckUtils]: 7: Hoare triple {26#false} assume 0 == ~cond; {26#false} is VALID [2022-02-20 17:27:50,145 INFO L290 TraceCheckUtils]: 8: Hoare triple {26#false} assume !false; {26#false} is VALID [2022-02-20 17:27:50,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 17:27:50,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 17:27:50,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540332972] [2022-02-20 17:27:50,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540332972] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 17:27:50,148 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 17:27:50,148 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 17:27:50,149 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284185184] [2022-02-20 17:27:50,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 17:27:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 17:27:50,155 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 17:27:50,162 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:50,196 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 17:27:50,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 17:27:50,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 17:27:50,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 17:27:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 17:27:50,220 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:50,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:27:50,299 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2022-02-20 17:27:50,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 17:27:50,300 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 17:27:50,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 17:27:50,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2022-02-20 17:27:50,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:50,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2022-02-20 17:27:50,320 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 64 transitions. [2022-02-20 17:27:50,413 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 17:27:50,419 INFO L225 Difference]: With dead ends: 41 [2022-02-20 17:27:50,423 INFO L226 Difference]: Without dead ends: 18 [2022-02-20 17:27:50,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 17:27:50,431 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 17:27:50,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 17:27:50,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-02-20 17:27:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-02-20 17:27:50,458 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 17:27:50,458 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:27:50,459 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:27:50,459 INFO L87 Difference]: Start difference. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:27:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:27:50,465 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-02-20 17:27:50,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:27:50,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 17:27:50,466 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 17:27:50,466 INFO L74 IsIncluded]: Start isIncluded. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 18 states. [2022-02-20 17:27:50,467 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 18 states. [2022-02-20 17:27:50,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:27:50,475 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-02-20 17:27:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:27:50,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 17:27:50,476 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 17:27:50,476 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 17:27:50,476 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 17:27:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:27:50,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-02-20 17:27:50,481 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9 [2022-02-20 17:27:50,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 17:27:50,482 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-02-20 17:27:50,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:50,482 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:27:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 17:27:50,483 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 17:27:50,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 17:27:50,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 17:27:50,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 17:27:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 17:27:50,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1187450884, now seen corresponding path program 1 times [2022-02-20 17:27:50,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 17:27:50,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820835903] [2022-02-20 17:27:50,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 17:27:50,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 17:27:50,504 ERROR L252 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-02-20 17:27:50,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [104829429] [2022-02-20 17:27:50,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 17:27:50,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 17:27:50,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 17:27:50,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 17:27:50,538 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-20 17:27:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 17:27:50,558 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 17:27:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 17:27:50,577 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 17:27:50,578 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 17:27:50,579 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 17:27:50,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-02-20 17:27:50,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 17:27:50,801 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 17:27:50,803 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 17:27:50,808 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call __VERIFIER_assert((if 1 == ~convertDOUBLEToINT(~someBinaryArithmeticDOUBLEoperation(~convertINTToDOUBLE(4), ~s~0)) - 12 * ~r~0 * ~r~0 then 1 else 0)); [2022-02-20 17:27:50,809 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getProgramExecutionAsString(UnprovableResult.java:132) at de.uni_freiburg.informatik.ultimate.core.lib.results.UnprovableResult.getLongDescription(UnprovableResult.java:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 17:27:50,811 INFO L158 Benchmark]: Toolchain (without parser) took 1368.94ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 53.1MB in the beginning and 59.3MB in the end (delta: -6.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-02-20 17:27:50,812 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 86.0MB. Free memory was 65.7MB in the beginning and 65.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 17:27:50,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.54ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 80.9MB in the end (delta: -28.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-02-20 17:27:50,812 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.56ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 17:27:50,813 INFO L158 Benchmark]: Boogie Preprocessor took 20.25ms. Allocated memory is still 104.9MB. Free memory was 79.1MB in the beginning and 78.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 17:27:50,813 INFO L158 Benchmark]: RCFGBuilder took 226.88ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 68.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 17:27:50,813 INFO L158 Benchmark]: TraceAbstraction took 883.29ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 59.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-02-20 17:27:50,815 INFO L339 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 0.15ms. Allocated memory is still 86.0MB. Free memory was 65.7MB in the beginning and 65.7MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.54ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.9MB in the beginning and 80.9MB in the end (delta: -28.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.56ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.25ms. Allocated memory is still 104.9MB. Free memory was 79.1MB in the beginning and 78.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.88ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 68.0MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 883.29ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 59.3MB in the end (delta: 8.4MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 17:27:50,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-scaling/freire2_valuebound10.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 17:27:52,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 17:27:52,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 17:27:52,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 17:27:52,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 17:27:52,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 17:27:52,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 17:27:52,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 17:27:52,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 17:27:52,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 17:27:52,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 17:27:52,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 17:27:52,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 17:27:52,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 17:27:52,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 17:27:52,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 17:27:52,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 17:27:52,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 17:27:52,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 17:27:52,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 17:27:52,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 17:27:52,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 17:27:52,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 17:27:52,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 17:27:52,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 17:27:52,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 17:27:52,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 17:27:52,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 17:27:52,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 17:27:52,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 17:27:52,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 17:27:52,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 17:27:52,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 17:27:52,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 17:27:52,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 17:27:52,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 17:27:52,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 17:27:52,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 17:27:52,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 17:27:52,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 17:27:52,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 17:27:52,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 17:27:52,894 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 17:27:52,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 17:27:52,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 17:27:52,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 17:27:52,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 17:27:52,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 17:27:52,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 17:27:52,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 17:27:52,896 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 17:27:52,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 17:27:52,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 17:27:52,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 17:27:52,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 17:27:52,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 17:27:52,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 17:27:52,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 17:27:52,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 17:27:52,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 17:27:52,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 17:27:52,900 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b82e8c1bcf5c03e334b6553e221218e68863b0793b3c79a9b1ece221f87e858 [2022-02-20 17:27:53,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 17:27:53,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 17:27:53,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 17:27:53,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 17:27:53,169 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 17:27:53,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2022-02-20 17:27:53,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0cd80e6/4c55f8b826ba4a218613941bc8e43e16/FLAG37efbe2d6 [2022-02-20 17:27:53,589 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 17:27:53,589 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c [2022-02-20 17:27:53,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0cd80e6/4c55f8b826ba4a218613941bc8e43e16/FLAG37efbe2d6 [2022-02-20 17:27:54,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae0cd80e6/4c55f8b826ba4a218613941bc8e43e16 [2022-02-20 17:27:54,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 17:27:54,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 17:27:54,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 17:27:54,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 17:27:54,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 17:27:54,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3626a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54, skipping insertion in model container [2022-02-20 17:27:54,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 17:27:54,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 17:27:54,167 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2022-02-20 17:27:54,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 17:27:54,244 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 17:27:54,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound10.c[709,722] [2022-02-20 17:27:54,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 17:27:54,287 INFO L208 MainTranslator]: Completed translation [2022-02-20 17:27:54,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54 WrapperNode [2022-02-20 17:27:54,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 17:27:54,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 17:27:54,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 17:27:54,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 17:27:54,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,335 INFO L137 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2022-02-20 17:27:54,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 17:27:54,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 17:27:54,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 17:27:54,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 17:27:54,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 17:27:54,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 17:27:54,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 17:27:54,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 17:27:54,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (1/1) ... [2022-02-20 17:27:54,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 17:27:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 17:27:54,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 17:27:54,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 17:27:54,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 17:27:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 17:27:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 17:27:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 17:27:54,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-20 17:27:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-20 17:27:54,507 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 17:27:54,509 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 17:27:56,419 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 17:27:56,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 17:27:56,424 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-20 17:27:56,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:27:56 BoogieIcfgContainer [2022-02-20 17:27:56,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 17:27:56,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 17:27:56,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 17:27:56,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 17:27:56,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 05:27:54" (1/3) ... [2022-02-20 17:27:56,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61db5695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:27:56, skipping insertion in model container [2022-02-20 17:27:56,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 05:27:54" (2/3) ... [2022-02-20 17:27:56,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61db5695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 05:27:56, skipping insertion in model container [2022-02-20 17:27:56,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 05:27:56" (3/3) ... [2022-02-20 17:27:56,431 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound10.c [2022-02-20 17:27:56,434 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 17:27:56,434 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 17:27:56,492 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 17:27:56,497 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 17:27:56,497 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 17:27:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-20 17:27:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 17:27:56,539 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 17:27:56,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 17:27:56,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 17:27:56,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 17:27:56,544 INFO L85 PathProgramCache]: Analyzing trace with hash -589224774, now seen corresponding path program 1 times [2022-02-20 17:27:56,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 17:27:56,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66503104] [2022-02-20 17:27:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 17:27:56,553 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 17:27:56,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 17:27:56,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 17:27:56,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 17:27:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 17:27:56,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 17:27:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 17:27:56,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 17:27:56,764 INFO L290 TraceCheckUtils]: 0: Hoare triple {25#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(10bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {25#true} is VALID [2022-02-20 17:27:56,764 INFO L290 TraceCheckUtils]: 1: Hoare triple {25#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_~r~0#1, main_~a~0#1, main_~x~0#1, main_~s~0#1;havoc main_~r~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~s~0#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~DOUBLE(main_~a~0#1, ~convertINTToDOUBLE(currentRoundingMode, 0bv32)) && ~fp.leq~DOUBLE(main_~a~0#1, ~convertINTToDOUBLE(currentRoundingMode, 10bv32)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {25#true} is VALID [2022-02-20 17:27:56,767 INFO L290 TraceCheckUtils]: 2: Hoare triple {25#true} assume 0bv32 == assume_abort_if_not_~cond#1;assume false; {26#false} is VALID [2022-02-20 17:27:56,768 INFO L290 TraceCheckUtils]: 3: Hoare triple {26#false} assume { :end_inline_assume_abort_if_not } true;main_~x~0#1 := main_~a~0#1;main_~s~0#1 := ~to_fp~DOUBLE(currentRoundingMode, 3.25);main_~r~0#1 := 1bv32; {26#false} is VALID [2022-02-20 17:27:56,768 INFO L290 TraceCheckUtils]: 4: Hoare triple {26#false} assume false; {26#false} is VALID [2022-02-20 17:27:56,768 INFO L272 TraceCheckUtils]: 5: Hoare triple {26#false} call __VERIFIER_assert((if 1bv32 == ~bvsub32(~convertDOUBLEToINT(~roundTowardZero, ~fp.mul~DOUBLE(currentRoundingMode, ~convertINTToDOUBLE(currentRoundingMode, 4bv32), main_~s~0#1)), ~bvmul32(~bvmul32(12bv32, main_~r~0#1), main_~r~0#1)) then 1bv32 else 0bv32)); {26#false} is VALID [2022-02-20 17:27:56,769 INFO L290 TraceCheckUtils]: 6: Hoare triple {26#false} ~cond := #in~cond; {26#false} is VALID [2022-02-20 17:27:56,769 INFO L290 TraceCheckUtils]: 7: Hoare triple {26#false} assume 0bv32 == ~cond; {26#false} is VALID [2022-02-20 17:27:56,770 INFO L290 TraceCheckUtils]: 8: Hoare triple {26#false} assume !false; {26#false} is VALID [2022-02-20 17:27:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 17:27:56,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 17:27:56,773 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 17:27:56,781 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66503104] [2022-02-20 17:27:56,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [66503104] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 17:27:56,783 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 17:27:56,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 17:27:56,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831886132] [2022-02-20 17:27:56,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 17:27:56,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 17:27:56,802 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 17:27:56,805 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:27:56,872 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 17:27:56,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 17:27:56,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 17:27:56,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 17:27:56,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 17:27:56,906 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:28:15,567 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2022-02-20 17:28:15,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 17:28:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 17:28:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 17:28:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:15,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2022-02-20 17:28:15,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:15,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions. [2022-02-20 17:28:15,583 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 64 transitions. [2022-02-20 17:28:21,925 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 17:28:21,930 INFO L225 Difference]: With dead ends: 41 [2022-02-20 17:28:21,930 INFO L226 Difference]: Without dead ends: 18 [2022-02-20 17:28:21,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 17:28:21,948 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 17:28:21,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 17:28:21,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-02-20 17:28:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-02-20 17:28:21,970 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 17:28:21,970 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:28:21,971 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:28:21,971 INFO L87 Difference]: Start difference. First operand 18 states. Second operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:28:21,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:28:21,974 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-02-20 17:28:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:28:21,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 17:28:21,975 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 17:28:21,976 INFO L74 IsIncluded]: Start isIncluded. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 18 states. [2022-02-20 17:28:21,976 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 18 states. [2022-02-20 17:28:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 17:28:21,978 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-02-20 17:28:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:28:21,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 17:28:21,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 17:28:21,979 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 17:28:21,979 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 17:28:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 17:28:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2022-02-20 17:28:21,983 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 9 [2022-02-20 17:28:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 17:28:21,983 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2022-02-20 17:28:21,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:21,983 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-02-20 17:28:21,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-02-20 17:28:21,984 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 17:28:21,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 17:28:21,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 17:28:22,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 17:28:22,195 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 17:28:22,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 17:28:22,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1187450884, now seen corresponding path program 1 times [2022-02-20 17:28:22,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 17:28:22,198 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797611110] [2022-02-20 17:28:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 17:28:22,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 17:28:22,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 17:28:22,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 17:28:22,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 17:28:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 17:28:22,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-20 17:28:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 17:28:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 17:28:22,825 INFO L290 TraceCheckUtils]: 0: Hoare triple {174#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(10bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {179#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 17:28:22,825 INFO L290 TraceCheckUtils]: 1: Hoare triple {179#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_~r~0#1, main_~a~0#1, main_~x~0#1, main_~s~0#1;havoc main_~r~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~s~0#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;assume { :begin_inline_assume_abort_if_not } true;assume_abort_if_not_#in~cond#1 := (if ~fp.geq~DOUBLE(main_~a~0#1, ~convertINTToDOUBLE(currentRoundingMode, 0bv32)) && ~fp.leq~DOUBLE(main_~a~0#1, ~convertINTToDOUBLE(currentRoundingMode, 10bv32)) then 1bv32 else 0bv32);havoc assume_abort_if_not_~cond#1;assume_abort_if_not_~cond#1 := assume_abort_if_not_#in~cond#1; {179#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 17:28:22,826 INFO L290 TraceCheckUtils]: 2: Hoare triple {179#(= currentRoundingMode roundNearestTiesToEven)} assume !(0bv32 == assume_abort_if_not_~cond#1); {179#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 17:28:22,827 INFO L290 TraceCheckUtils]: 3: Hoare triple {179#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_assume_abort_if_not } true;main_~x~0#1 := main_~a~0#1;main_~s~0#1 := ~to_fp~DOUBLE(currentRoundingMode, 3.25);main_~r~0#1 := 1bv32; {189#(and (= ((_ to_fp 11 53) currentRoundingMode (/ 13.0 4.0)) |ULTIMATE.start_main_~s~0#1|) (= |ULTIMATE.start_main_~r~0#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2022-02-20 17:28:22,828 INFO L290 TraceCheckUtils]: 4: Hoare triple {189#(and (= ((_ to_fp 11 53) currentRoundingMode (/ 13.0 4.0)) |ULTIMATE.start_main_~s~0#1|) (= |ULTIMATE.start_main_~r~0#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))} assume !false; {189#(and (= ((_ to_fp 11 53) currentRoundingMode (/ 13.0 4.0)) |ULTIMATE.start_main_~s~0#1|) (= |ULTIMATE.start_main_~r~0#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2022-02-20 17:28:22,829 INFO L272 TraceCheckUtils]: 5: Hoare triple {189#(and (= ((_ to_fp 11 53) currentRoundingMode (/ 13.0 4.0)) |ULTIMATE.start_main_~s~0#1|) (= |ULTIMATE.start_main_~r~0#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven))} call __VERIFIER_assert((if 1bv32 == ~bvsub32(~convertDOUBLEToINT(~roundTowardZero, ~fp.mul~DOUBLE(currentRoundingMode, ~convertINTToDOUBLE(currentRoundingMode, 4bv32), main_~s~0#1)), ~bvmul32(~bvmul32(12bv32, main_~r~0#1), main_~r~0#1)) then 1bv32 else 0bv32)); {196#(= (_ bv1 32) |__VERIFIER_assert_#in~cond|)} is VALID [2022-02-20 17:28:22,829 INFO L290 TraceCheckUtils]: 6: Hoare triple {196#(= (_ bv1 32) |__VERIFIER_assert_#in~cond|)} ~cond := #in~cond; {200#(= __VERIFIER_assert_~cond (_ bv1 32))} is VALID [2022-02-20 17:28:22,829 INFO L290 TraceCheckUtils]: 7: Hoare triple {200#(= __VERIFIER_assert_~cond (_ bv1 32))} assume 0bv32 == ~cond; {175#false} is VALID [2022-02-20 17:28:22,830 INFO L290 TraceCheckUtils]: 8: Hoare triple {175#false} assume !false; {175#false} is VALID [2022-02-20 17:28:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 17:28:22,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 17:28:22,830 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 17:28:22,830 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797611110] [2022-02-20 17:28:22,830 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797611110] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 17:28:22,830 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 17:28:22,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 17:28:22,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878023430] [2022-02-20 17:28:22,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 17:28:22,831 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-02-20 17:28:22,832 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 17:28:22,832 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:23,051 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 17:28:23,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 17:28:23,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 17:28:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 17:28:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-20 17:28:23,052 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 17:28:30,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 17:28:34,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 17:28:36,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 17:28:47,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-02-20 17:29:02,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []