./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter_iir.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter_iir.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa --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 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:06:41,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:06:41,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:06:41,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:06:41,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:06:41,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:06:41,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:06:41,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:06:41,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:06:41,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:06:41,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:06:41,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:06:41,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:06:41,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:06:41,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:06:41,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:06:41,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:06:41,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:06:41,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:06:41,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:06:41,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:06:41,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:06:41,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:06:41,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:06:41,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:06:41,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:06:41,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:06:41,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:06:41,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:06:41,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:06:41,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:06:41,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:06:41,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:06:41,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:06:41,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:06:41,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:06:41,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:06:41,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:06:41,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:06:41,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:06:41,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:06:41,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 20:06:41,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:06:41,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:06:41,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:06:41,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:06:41,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:06:41,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:06:41,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:06:41,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:06:41,659 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:06:41,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:06:41,659 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:06:41,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:06:41,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:06:41,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:06:41,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:06:41,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:06:41,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:06:41,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:06:41,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:06:41,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:06:41,662 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2021-12-06 20:06:41,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:06:41,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:06:41,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:06:41,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:06:41,867 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:06:41,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-06 20:06:41,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/6a9b24250/095e9beb1bd040a0a74753f504fc3999/FLAGa8b7b51dc [2021-12-06 20:06:42,272 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:06:42,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-06 20:06:42,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/6a9b24250/095e9beb1bd040a0a74753f504fc3999/FLAGa8b7b51dc [2021-12-06 20:06:42,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/6a9b24250/095e9beb1bd040a0a74753f504fc3999 [2021-12-06 20:06:42,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:06:42,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:06:42,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:06:42,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:06:42,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:06:42,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbb826e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42, skipping insertion in model container [2021-12-06 20:06:42,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:06:42,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:06:42,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c[583,596] [2021-12-06 20:06:42,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:06:42,453 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:06:42,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c[583,596] [2021-12-06 20:06:42,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:06:42,493 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:06:42,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42 WrapperNode [2021-12-06 20:06:42,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:06:42,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:06:42,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:06:42,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:06:42,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,532 INFO L137 Inliner]: procedures = 18, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2021-12-06 20:06:42,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:06:42,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:06:42,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:06:42,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:06:42,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:06:42,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:06:42,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:06:42,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:06:42,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (1/1) ... [2021-12-06 20:06:42,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:06:42,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:06:42,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:06:42,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:06:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:06:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:06:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 20:06:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 20:06:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:06:42,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:06:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-12-06 20:06:42,678 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:06:42,680 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:06:42,827 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:06:42,833 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:06:42,833 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:06:42,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:06:42 BoogieIcfgContainer [2021-12-06 20:06:42,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:06:42,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:06:42,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:06:42,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:06:42,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:06:42" (1/3) ... [2021-12-06 20:06:42,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e84d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:06:42, skipping insertion in model container [2021-12-06 20:06:42,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:42" (2/3) ... [2021-12-06 20:06:42,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e84d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:06:42, skipping insertion in model container [2021-12-06 20:06:42,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:06:42" (3/3) ... [2021-12-06 20:06:42,843 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2021-12-06 20:06:42,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:06:42,848 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:06:42,886 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:06:42,893 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 [2021-12-06 20:06:42,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:06:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:42,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:42,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:42,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:42,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:42,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2021-12-06 20:06:42,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:42,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60518214] [2021-12-06 20:06:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:42,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:43,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:43,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60518214] [2021-12-06 20:06:43,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60518214] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:43,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:43,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:06:43,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635983172] [2021-12-06 20:06:43,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:43,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:06:43,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:43,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:06:43,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:06:43,164 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:06:43,179 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-12-06 20:06:43,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:06:43,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:06:43,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:06:43,188 INFO L225 Difference]: With dead ends: 30 [2021-12-06 20:06:43,188 INFO L226 Difference]: Without dead ends: 14 [2021-12-06 20:06:43,191 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 [2021-12-06 20:06:43,195 INFO L933 BasicCegarLoop]: 16 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, 16 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 [2021-12-06 20:06:43,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:06:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-06 20:06:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-06 20:06:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-12-06 20:06:43,226 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2021-12-06 20:06:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:06:43,226 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-12-06 20:06:43,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-12-06 20:06:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:43,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:43,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:43,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:06:43,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:43,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:43,229 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2021-12-06 20:06:43,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:43,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382667177] [2021-12-06 20:06:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:43,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:43,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:06:43,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382667177] [2021-12-06 20:06:43,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382667177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:43,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:43,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:06:43,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833560300] [2021-12-06 20:06:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:43,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:06:43,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:06:43,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:06:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:06:43,357 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:06:43,381 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-12-06 20:06:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:06:43,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:06:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:06:43,382 INFO L225 Difference]: With dead ends: 28 [2021-12-06 20:06:43,382 INFO L226 Difference]: Without dead ends: 14 [2021-12-06 20:06:43,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:06:43,384 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:06:43,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:06:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-06 20:06:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-06 20:06:43,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-12-06 20:06:43,387 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-12-06 20:06:43,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:06:43,387 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-06 20:06:43,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:43,387 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-12-06 20:06:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:43,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:43,388 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:43,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:06:43,388 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:43,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:43,389 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2021-12-06 20:06:43,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:06:43,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578314947] [2021-12-06 20:06:43,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:43,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:06:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:06:43,433 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 20:06:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 20:06:43,484 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 20:06:43,484 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 20:06:43,484 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:06:43,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:06:43,488 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-06 20:06:43,490 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:06:43,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:06:43 BoogieIcfgContainer [2021-12-06 20:06:43,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:06:43,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:06:43,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:06:43,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:06:43,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:06:42" (3/4) ... [2021-12-06 20:06:43,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 20:06:43,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:06:43,528 INFO L158 Benchmark]: Toolchain (without parser) took 1238.53ms. Allocated memory is still 109.1MB. Free memory was 73.0MB in the beginning and 51.2MB in the end (delta: 21.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-12-06 20:06:43,529 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:06:43,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.45ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 84.6MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:06:43,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.85ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:06:43,531 INFO L158 Benchmark]: Boogie Preprocessor took 28.07ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 20:06:43,531 INFO L158 Benchmark]: RCFGBuilder took 272.81ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 66.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 20:06:43,532 INFO L158 Benchmark]: TraceAbstraction took 687.32ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 51.2MB in the end (delta: 14.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-12-06 20:06:43,532 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 109.1MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:06:43,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 109.1MB. Free memory is still 89.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.45ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 84.6MB in the end (delta: -11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.85ms. Allocated memory is still 109.1MB. Free memory was 84.6MB in the beginning and 82.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.07ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 272.81ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 66.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 687.32ms. Allocated memory is still 109.1MB. Free memory was 66.0MB in the beginning and 51.2MB in the end (delta: 14.9MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 109.1MB. Free memory is still 51.2MB. There was no memory consumed. 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 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 28. Possible FailurePath: [L16] double A1[3] = { 1, 0.5179422053046, 1.0 }; [L17] double b1[2] = { 1.470767736573, 0.5522073405779 }; [L18] double A2[3] = { 1, 1.633101801841, 1.0 }; [L19] double b2[2] = { 1.742319554830, 0.820939679242 }; [L21] double D1[2], D2[2]; [L22] double P, X; VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L43] D1[0] = 0. [L43] D1[1] = 0. [L44] D2[0] = 0. [L44] D2[1] = 0. [L45] P = 0. VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L47] COND TRUE 1 [L49] X = __VERIFIER_nondet_double() [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. [L50] EXPR \read(X) [L50] EXPR X >= -10. && X <= 10. VAL [\read(X)=63, \read(X)=63, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] CALL assume_abort_if_not(X >= -10. && X <= 10.) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=1, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L50] RET assume_abort_if_not(X >= -10. && X <= 10.) [L52] CALL iir4(&X, &P) [L26] double x1, y1, t1, t2; [L28] EXPR \read(*x) [L28] x1 = 0.0117749388721091 * *x [L30] EXPR b1[0] [L30] EXPR D1[0] [L30] EXPR b1[1] [L30] EXPR D1[1] [L30] t1 = x1 + b1[0]*D1[0] - b1[1]*D1[1] [L31] EXPR A1[0] [L31] EXPR A1[1] [L31] EXPR D1[0] [L31] EXPR A1[2] [L31] EXPR D1[1] [L31] y1 = A1[0]*t1 - A1[1]*D1[0] + A1[2]*D1[1] [L32] EXPR D1[0] [L32] D1[1] = D1[0] [L33] D1[0] = t1 [L35] EXPR b2[0] [L35] EXPR D2[0] [L35] EXPR b2[1] [L35] EXPR D2[1] [L35] t2 = y1 + b2[0]*D2[0] - b2[1]*D2[1] [L36] EXPR A2[0] [L36] EXPR A2[1] [L36] EXPR D2[0] [L36] EXPR A2[2] [L36] EXPR D2[1] [L36] *y = A2[0]*t2 - A2[1]*D2[0] + A2[2]*D2[1] [L37] EXPR D2[0] [L37] D2[1] = D2[0] [L38] D2[0] = t2 VAL [A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, t1=51, t2=58, x={11:0}, X={11:0}, x={11:0}, y={10:0}, y={10:0}] [L52] RET iir4(&X, &P) [L54] EXPR \read(P) [L54] EXPR P >= -1e30 && P <= 1e30 VAL [\read(P)=59, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, D1={8:0}, D2={9:0}, P={10:0}, P >= -1e30 && P <= 1e30=0, X={11:0}] [L54] CALL __VERIFIER_assert(P >= -1e30 && P <= 1e30) [L13] COND TRUE !(cond) VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] [L13] reach_error() VAL [\old(cond)=0, A1={4:0}, A2={6:0}, b1={5:0}, b2={7:0}, cond=0, D1={8:0}, D2={9:0}, P={10:0}, X={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-06 20:06:43,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter_iir.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa --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 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:06:45,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:06:45,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:06:45,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:06:45,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:06:45,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:06:45,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:06:45,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:06:45,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:06:45,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:06:45,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:06:45,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:06:45,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:06:45,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:06:45,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:06:45,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:06:45,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:06:45,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:06:45,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:06:45,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:06:45,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:06:45,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:06:45,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:06:45,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:06:45,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:06:45,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:06:45,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:06:45,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:06:45,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:06:45,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:06:45,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:06:45,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:06:45,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:06:45,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:06:45,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:06:45,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:06:45,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:06:45,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:06:45,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:06:45,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:06:45,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:06:45,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 20:06:45,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:06:45,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:06:45,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:06:45,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:06:45,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:06:45,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:06:45,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:06:45,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:06:45,185 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:06:45,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:06:45,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:06:45,187 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 20:06:45,187 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 20:06:45,187 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 20:06:45,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 20:06:45,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:06:45,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:06:45,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:06:45,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:06:45,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:06:45,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:06:45,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:06:45,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:06:45,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:06:45,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:06:45,189 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 20:06:45,190 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 20:06:45,190 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:06:45,190 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:06:45,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:06:45,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:06:45,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 20:06:45,191 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8140822ac5d36d3dbe917657ea1276e86420f348faa7d4310d2cd40fc22f39e9 [2021-12-06 20:06:45,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:06:45,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:06:45,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:06:45,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:06:45,436 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:06:45,436 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-06 20:06:45,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/94ee31228/e6e6d62aa9cf41169d0bb14ed78ae9f4/FLAGb40c04fc8 [2021-12-06 20:06:45,846 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:06:45,846 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c [2021-12-06 20:06:45,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/94ee31228/e6e6d62aa9cf41169d0bb14ed78ae9f4/FLAGb40c04fc8 [2021-12-06 20:06:45,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/data/94ee31228/e6e6d62aa9cf41169d0bb14ed78ae9f4 [2021-12-06 20:06:45,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:06:45,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:06:45,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:06:45,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:06:45,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:06:45,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:06:45" (1/1) ... [2021-12-06 20:06:45,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6f8bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:45, skipping insertion in model container [2021-12-06 20:06:45,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:06:45" (1/1) ... [2021-12-06 20:06:45,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:06:45,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:06:46,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c[583,596] [2021-12-06 20:06:46,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:06:46,059 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:06:46,069 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/sv-benchmarks/c/float-benchs/filter_iir.c[583,596] [2021-12-06 20:06:46,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:06:46,096 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:06:46,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46 WrapperNode [2021-12-06 20:06:46,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:06:46,097 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:06:46,097 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:06:46,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:06:46,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,130 INFO L137 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2021-12-06 20:06:46,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:06:46,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:06:46,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:06:46,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:06:46,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:06:46,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:06:46,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:06:46,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:06:46,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (1/1) ... [2021-12-06 20:06:46,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:06:46,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:06:46,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:06:46,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:06:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:06:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-06 20:06:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-06 20:06:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 20:06:46,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-12-06 20:06:46,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:06:46,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:06:46,272 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:06:46,273 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:06:48,994 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:06:48,999 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:06:48,999 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 20:06:49,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:06:49 BoogieIcfgContainer [2021-12-06 20:06:49,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:06:49,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:06:49,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:06:49,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:06:49,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:06:45" (1/3) ... [2021-12-06 20:06:49,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4700d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:06:49, skipping insertion in model container [2021-12-06 20:06:49,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:06:46" (2/3) ... [2021-12-06 20:06:49,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4700d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:06:49, skipping insertion in model container [2021-12-06 20:06:49,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:06:49" (3/3) ... [2021-12-06 20:06:49,008 INFO L111 eAbstractionObserver]: Analyzing ICFG filter_iir.c [2021-12-06 20:06:49,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:06:49,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:06:49,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:06:49,051 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 [2021-12-06 20:06:49,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:06:49,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:49,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:49,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:49,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:49,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:49,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1398280527, now seen corresponding path program 1 times [2021-12-06 20:06:49,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:06:49,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459371523] [2021-12-06 20:06:49,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:49,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:06:49,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:06:49,081 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:06:49,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 20:06:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:51,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 20:06:51,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:06:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:51,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:06:51,960 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:06:51,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459371523] [2021-12-06 20:06:51,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459371523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:51,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:51,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:06:51,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375919885] [2021-12-06 20:06:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:51,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:06:51,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:06:51,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:06:51,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:06:51,998 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:52,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:06:52,008 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2021-12-06 20:06:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:06:52,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:06:52,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:06:52,015 INFO L225 Difference]: With dead ends: 30 [2021-12-06 20:06:52,015 INFO L226 Difference]: Without dead ends: 14 [2021-12-06 20:06:52,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:06:52,020 INFO L933 BasicCegarLoop]: 16 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, 16 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 [2021-12-06 20:06:52,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:06:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-06 20:06:52,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-06 20:06:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:52,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-12-06 20:06:52,042 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2021-12-06 20:06:52,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:06:52,043 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-12-06 20:06:52,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:52,043 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-12-06 20:06:52,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:52,043 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:52,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:52,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:06:52,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:06:52,245 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:52,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash 376726835, now seen corresponding path program 1 times [2021-12-06 20:06:52,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:06:52,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353425950] [2021-12-06 20:06:52,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:52,247 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:06:52,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:06:52,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:06:52,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 20:06:54,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:06:55,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 20:06:55,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:06:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 20:06:55,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 20:06:55,233 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 20:06:55,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353425950] [2021-12-06 20:06:55,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353425950] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:06:55,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:06:55,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:06:55,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796492399] [2021-12-06 20:06:55,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:06:55,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:06:55,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 20:06:55,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:06:55,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:06:55,236 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:58,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 20:06:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:06:58,265 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-12-06 20:06:58,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:06:58,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-06 20:06:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:06:58,613 INFO L225 Difference]: With dead ends: 28 [2021-12-06 20:06:58,613 INFO L226 Difference]: Without dead ends: 14 [2021-12-06 20:06:58,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:06:58,615 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-06 20:06:58,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-12-06 20:06:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-06 20:06:58,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-06 20:06:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:58,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2021-12-06 20:06:58,618 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2021-12-06 20:06:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:06:58,618 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2021-12-06 20:06:58,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:06:58,619 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-12-06 20:06:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 20:06:58,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:06:58,619 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:06:58,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 20:06:58,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 20:06:58,821 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:06:58,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:06:58,823 INFO L85 PathProgramCache]: Analyzing trace with hash -303331535, now seen corresponding path program 1 times [2021-12-06 20:06:58,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 20:06:58,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2056891751] [2021-12-06 20:06:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:06:58,825 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 20:06:58,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 20:06:58,826 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 20:06:58,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c79c6c1d-9626-4584-afb7-dc76146c2f0d/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 20:10:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:10:31,866 WARN L261 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 92 conjunts are in the unsatisfiable core [2021-12-06 20:10:31,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:10:34,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:34,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,460 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,460 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,461 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:34,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:10:35,012 INFO L354 Elim1Store]: treesize reduction 459, result has 5.9 percent of original size [2021-12-06 20:10:35,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 21 disjoint index pairs (out of 120 index pairs), introduced 17 new quantified variables, introduced 29 case distinctions, treesize of input 244 treesize of output 287 [2021-12-06 20:10:35,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 220 [2021-12-06 20:10:37,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 220 [2021-12-06 20:10:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:50,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 1218 treesize of output 944 [2021-12-06 20:10:50,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 813 treesize of output 757 [2021-12-06 20:10:50,903 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-12-06 20:10:50,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 795 treesize of output 697 [2021-12-06 20:10:57,321 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (bvadd |~#P~0.offset| (_ bv4 32)) (_ bv0 32)) [2021-12-06 20:10:57,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:10:59,329 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:01,334 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:01,334 INFO L244 Elim1Store]: Index analysis took 6019 ms [2021-12-06 20:11:03,341 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|)) [2021-12-06 20:11:05,353 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|)) [2021-12-06 20:11:07,361 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:09,365 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |~#P~0.base|) |~#P~0.offset|) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:11,373 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:13,382 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select |#memory_int| |~#P~0.base|) (bvadd |~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) [2021-12-06 20:11:13,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2021-12-06 20:17:42,510 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse43 (let ((.cse45 (let ((.cse46 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse46 (_ bv4 32)) (select .cse46 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse45) ((_ extract 62 52) .cse45) ((_ extract 51 0) .cse45)))) (.cse44 ((_ to_fp 11 53) c_currentRoundingMode 10.0))) (and (= |c_~#P~0.base| (_ bv10 32)) (exists ((|~#A2~0.offset| (_ BitVec 32)) (|~#b2~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_9_6 (_ BitVec 64)) (|~#A1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_1_6 (_ BitVec 64)) (v_skolemized_v_prenex_10_6 (_ BitVec 64)) (v_skolemized_v_prenex_11_6 (_ BitVec 64)) (v_skolemized_v_prenex_23_6 (_ BitVec 64)) (|~#b1~0.offset| (_ BitVec 32)) (v_skolemized_v_prenex_12_6 (_ BitVec 64)) (v_skolemized_v_prenex_5_6 (_ BitVec 64)) (v_skolemized_v_prenex_6_6 (_ BitVec 64)) (v_skolemized_v_prenex_7_6 (_ BitVec 64)) (v_skolemized_v_prenex_18_6 (_ BitVec 64)) (v_skolemized_v_prenex_17_6 (_ BitVec 64)) (v_skolemized_v_prenex_19_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64)) (v_skolemized_v_prenex_14_6 (_ BitVec 64)) (|v_skolemized_q#valueAsBitvector_22| (_ BitVec 64))) (let ((.cse18 (select |c_#memory_int| (_ bv4 32))) (.cse26 (select |c_#memory_int| (_ bv7 32))) (.cse34 (select |c_#memory_int| (_ bv6 32))) (.cse10 (select |c_#memory_int| (_ bv5 32)))) (let ((.cse0 (select .cse10 (bvadd (_ bv4 32) |~#b1~0.offset|))) (.cse37 (select .cse34 (bvadd |~#A2~0.offset| (_ bv20 32)))) (.cse40 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse29 (select .cse26 (bvadd |~#b2~0.offset| (_ bv12 32)))) (.cse38 (select .cse34 (bvadd (_ bv16 32) |~#A2~0.offset|))) (.cse6 (select .cse18 |~#A1~0.offset|)) (.cse17 (select .cse18 (bvadd |~#A1~0.offset| (_ bv12 32)))) (.cse2 (select .cse34 (bvadd (_ bv4 32) |~#A2~0.offset|))) (.cse3 (select .cse34 |~#A2~0.offset|)) (.cse42 ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (.cse5 (select .cse18 (bvadd (_ bv4 32) |~#A1~0.offset|))) (.cse33 (select .cse34 (bvadd |~#A2~0.offset| (_ bv12 32)))) (.cse30 (select .cse26 (bvadd (_ bv8 32) |~#b2~0.offset|))) (.cse13 (select .cse10 (bvadd |~#b1~0.offset| (_ bv12 32)))) (.cse14 (select .cse10 (bvadd (_ bv8 32) |~#b1~0.offset|))) (.cse21 (select .cse18 (bvadd |~#A1~0.offset| (_ bv20 32)))) (.cse25 (select .cse26 (bvadd (_ bv4 32) |~#b2~0.offset|))) (.cse22 (select .cse18 (bvadd (_ bv16 32) |~#A1~0.offset|))) (.cse41 (select |c_#memory_int| |c_~#P~0.base|))) (and (= ((_ extract 63 32) v_skolemized_v_prenex_12_6) .cse0) (= (let ((.cse31 (let ((.cse39 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_22|)))) (fp ((_ extract 63 63) .cse39) ((_ extract 62 52) .cse39) ((_ extract 51 0) .cse39))))) (fp.add c_currentRoundingMode (let ((.cse27 (let ((.cse35 (concat ((_ extract 63 32) v_skolemized_v_prenex_19_6) ((_ extract 31 0) v_skolemized_v_prenex_19_6)))) (fp ((_ extract 63 63) .cse35) ((_ extract 62 52) .cse35) ((_ extract 51 0) .cse35))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse1 (concat .cse2 .cse3))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (let ((.cse15 (let ((.cse23 (concat ((_ extract 63 32) v_skolemized_v_prenex_17_6) ((_ extract 31 0) v_skolemized_v_prenex_17_6)))) (fp ((_ extract 63 63) .cse23) ((_ extract 62 52) .cse23) ((_ extract 51 0) .cse23))))) (fp.add c_currentRoundingMode (let ((.cse11 (let ((.cse19 (concat ((_ extract 63 32) v_skolemized_v_prenex_18_6) ((_ extract 31 0) v_skolemized_v_prenex_18_6)))) (fp ((_ extract 63 63) .cse19) ((_ extract 62 52) .cse19) ((_ extract 51 0) .cse19))))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (let ((.cse4 (concat .cse5 .cse6))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 117749388721091.0 10000000000000000.0)) (let ((.cse7 (let ((.cse8 (select |c_#memory_int| (_ bv11 32)))) (concat (select .cse8 (_ bv4 32)) (select .cse8 (_ bv0 32)))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7)))) (fp.mul c_currentRoundingMode (let ((.cse9 (concat .cse0 (select .cse10 |~#b1~0.offset|)))) (fp ((_ extract 63 63) .cse9) ((_ extract 62 52) .cse9) ((_ extract 51 0) .cse9))) .cse11)) (fp.mul c_currentRoundingMode (let ((.cse12 (concat .cse13 .cse14))) (fp ((_ extract 63 63) .cse12) ((_ extract 62 52) .cse12) ((_ extract 51 0) .cse12))) .cse15))) (fp.mul c_currentRoundingMode (let ((.cse16 (concat .cse17 (select .cse18 (bvadd (_ bv8 32) |~#A1~0.offset|))))) (fp ((_ extract 63 63) .cse16) ((_ extract 62 52) .cse16) ((_ extract 51 0) .cse16))) .cse11))) (fp.mul c_currentRoundingMode (let ((.cse20 (concat .cse21 .cse22))) (fp ((_ extract 63 63) .cse20) ((_ extract 62 52) .cse20) ((_ extract 51 0) .cse20))) .cse15))) (fp.mul c_currentRoundingMode (let ((.cse24 (concat .cse25 (select .cse26 |~#b2~0.offset|)))) (fp ((_ extract 63 63) .cse24) ((_ extract 62 52) .cse24) ((_ extract 51 0) .cse24))) .cse27)) (fp.mul c_currentRoundingMode (let ((.cse28 (concat .cse29 .cse30))) (fp ((_ extract 63 63) .cse28) ((_ extract 62 52) .cse28) ((_ extract 51 0) .cse28))) .cse31))) (fp.mul c_currentRoundingMode (let ((.cse32 (concat .cse33 (select .cse34 (bvadd (_ bv8 32) |~#A2~0.offset|))))) (fp ((_ extract 63 63) .cse32) ((_ extract 62 52) .cse32) ((_ extract 51 0) .cse32))) .cse27))) (fp.mul c_currentRoundingMode (let ((.cse36 (concat .cse37 .cse38))) (fp ((_ extract 63 63) .cse36) ((_ extract 62 52) .cse36) ((_ extract 51 0) .cse36))) .cse31))) (fp ((_ extract 63 63) v_skolemized_v_prenex_23_6) ((_ extract 62 52) v_skolemized_v_prenex_23_6) ((_ extract 51 0) v_skolemized_v_prenex_23_6))) (= .cse37 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|)) (= .cse40 (fp ((_ extract 63 63) v_skolemized_v_prenex_9_6) ((_ extract 62 52) v_skolemized_v_prenex_9_6) ((_ extract 51 0) v_skolemized_v_prenex_9_6))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_14_6) ((_ extract 62 52) v_skolemized_v_prenex_14_6) ((_ extract 51 0) v_skolemized_v_prenex_14_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 174231955483.0 100000000000.0))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_6) ((_ extract 62 52) v_skolemized_v_prenex_5_6) ((_ extract 51 0) v_skolemized_v_prenex_5_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 1633101801841.0 1000000000000.0))) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_21|)) .cse40) (= ((_ extract 63 32) v_skolemized_v_prenex_11_6) .cse29) (= (select .cse41 (bvadd |c_~#P~0.offset| (_ bv4 32))) ((_ extract 63 32) v_skolemized_v_prenex_23_6)) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_21|) .cse38) (= .cse6 ((_ extract 31 0) v_skolemized_v_prenex_10_6)) (= ((_ extract 63 32) v_skolemized_v_prenex_6_6) .cse17) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_6) ((_ extract 62 52) v_skolemized_v_prenex_1_6) ((_ extract 51 0) v_skolemized_v_prenex_1_6)) .cse42) (= ((_ extract 63 32) v_skolemized_v_prenex_1_6) .cse2) (= ((_ extract 31 0) v_skolemized_v_prenex_1_6) .cse3) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 5522073405779.0 10000000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_7_6) ((_ extract 62 52) v_skolemized_v_prenex_7_6) ((_ extract 51 0) v_skolemized_v_prenex_7_6))) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_10_6) ((_ extract 62 52) v_skolemized_v_prenex_10_6) ((_ extract 51 0) v_skolemized_v_prenex_10_6)) .cse42) (= ((_ extract 63 32) v_skolemized_v_prenex_10_6) .cse5) (= .cse33 ((_ extract 63 32) v_skolemized_v_prenex_5_6)) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_17_6) ((_ extract 62 52) v_skolemized_v_prenex_17_6) ((_ extract 51 0) v_skolemized_v_prenex_17_6))) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 2589711026523.0 5000000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_6_6) ((_ extract 62 52) v_skolemized_v_prenex_6_6) ((_ extract 51 0) v_skolemized_v_prenex_6_6))) (= ((_ extract 31 0) v_skolemized_v_prenex_11_6) .cse30) (= .cse13 ((_ extract 63 32) v_skolemized_v_prenex_7_6)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_11_6) ((_ extract 62 52) v_skolemized_v_prenex_11_6) ((_ extract 51 0) v_skolemized_v_prenex_11_6)) ((_ to_fp 11 53) c_currentRoundingMode (/ 410469839621.0 500000000000.0))) (= ((_ to_fp 11 53) c_currentRoundingMode (/ 1470767736573.0 1000000000000.0)) (fp ((_ extract 63 63) v_skolemized_v_prenex_12_6) ((_ extract 62 52) v_skolemized_v_prenex_12_6) ((_ extract 51 0) v_skolemized_v_prenex_12_6))) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_18_6) ((_ extract 62 52) v_skolemized_v_prenex_18_6) ((_ extract 51 0) v_skolemized_v_prenex_18_6))) (= ((_ extract 31 0) v_skolemized_v_prenex_7_6) .cse14) (= ((_ extract 63 32) v_skolemized_v_prenex_9_6) .cse21) (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_19_6) ((_ extract 62 52) v_skolemized_v_prenex_19_6) ((_ extract 51 0) v_skolemized_v_prenex_19_6))) (= ((_ extract 63 32) v_skolemized_v_prenex_14_6) .cse25) (= .cse22 ((_ extract 31 0) v_skolemized_v_prenex_9_6)) (= ((_ extract 31 0) v_skolemized_v_prenex_23_6) (select .cse41 |c_~#P~0.offset|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_22|)) (_ +zero 11 53)))))) (= |c_~#P~0.offset| (_ bv0 32)) (fp.leq .cse43 .cse44) (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq .cse43 (fp.neg .cse44)))) is different from false [2021-12-06 20:17:43,438 INFO L354 Elim1Store]: treesize reduction 472, result has 0.2 percent of original size [2021-12-06 20:17:43,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 24 select indices, 24 select index equivalence classes, 16 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 42 case distinctions, treesize of input 1051 treesize of output 495