./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.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_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/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_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/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_eac4499b-7a0e-4032-b478-1dc5510ab07c/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 f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:42:38,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:42:38,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:42:38,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:42:38,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:42:38,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:42:38,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:42:38,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:42:38,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:42:38,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:42:38,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:42:38,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:42:38,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:42:38,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:42:38,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:42:38,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:42:38,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:42:38,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:42:38,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:42:38,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:42:38,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:42:38,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:42:38,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:42:38,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:42:38,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:42:38,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:42:38,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:42:38,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:42:38,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:42:38,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:42:38,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:42:38,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:42:38,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:42:38,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:42:38,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:42:38,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:42:38,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:42:38,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:42:38,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:42:38,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:42:38,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:42:38,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:42:38,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:42:38,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:42:38,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:42:38,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:42:38,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:42:38,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:42:38,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:42:38,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:42:38,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:42:38,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:42:38,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:42:38,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:42:38,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:42:38,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:42:38,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:42:38,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:42:38,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:42:38,627 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2021-12-06 22:42:38,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:42:38,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:42:38,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:42:38,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:42:38,835 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:42:38,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:38,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/3f90e5725/82a99158e3094e3a914c713dff841e88/FLAG7ec790fa2 [2021-12-06 22:42:39,238 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:42:39,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:39,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/3f90e5725/82a99158e3094e3a914c713dff841e88/FLAG7ec790fa2 [2021-12-06 22:42:39,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/3f90e5725/82a99158e3094e3a914c713dff841e88 [2021-12-06 22:42:39,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:42:39,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:42:39,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:42:39,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:42:39,261 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:42:39,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c16014b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39, skipping insertion in model container [2021-12-06 22:42:39,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:42:39,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:42:39,405 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-06 22:42:39,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:42:39,414 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:42:39,429 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-06 22:42:39,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:42:39,440 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:42:39,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39 WrapperNode [2021-12-06 22:42:39,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:42:39,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:42:39,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:42:39,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:42:39,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,465 INFO L137 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2021-12-06 22:42:39,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:42:39,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:42:39,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:42:39,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:42:39,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:42:39,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:42:39,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:42:39,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:42:39,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (1/1) ... [2021-12-06 22:42:39,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:42:39,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:42:39,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:42:39,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 22:42:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:42:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:42:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:42:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:42:39,592 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:42:39,594 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:42:39,690 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:42:39,695 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:42:39,695 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:42:39,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:42:39 BoogieIcfgContainer [2021-12-06 22:42:39,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:42:39,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:42:39,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:42:39,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:42:39,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:42:39" (1/3) ... [2021-12-06 22:42:39,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180be52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:42:39, skipping insertion in model container [2021-12-06 22:42:39,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:39" (2/3) ... [2021-12-06 22:42:39,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180be52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:42:39, skipping insertion in model container [2021-12-06 22:42:39,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:42:39" (3/3) ... [2021-12-06 22:42:39,703 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:39,707 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:42:39,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:42:39,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:42:39,750 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 22:42:39,750 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:42:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 22:42:39,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 22:42:39,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:39,767 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:39,767 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:39,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash -938930996, now seen corresponding path program 1 times [2021-12-06 22:42:39,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:42:39,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688811561] [2021-12-06 22:42:39,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:39,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:42:39,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:39,929 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 22:42:39,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:42:39,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688811561] [2021-12-06 22:42:39,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688811561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:39,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:39,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:42:39,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190538214] [2021-12-06 22:42:39,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:39,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:42:39,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:42:39,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:42:39,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:42:39,960 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 22:42:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:40,006 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2021-12-06 22:42:40,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:42:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-12-06 22:42:40,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:40,014 INFO L225 Difference]: With dead ends: 49 [2021-12-06 22:42:40,014 INFO L226 Difference]: Without dead ends: 33 [2021-12-06 22:42:40,016 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 22:42:40,020 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:42:40,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:42:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-06 22:42:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2021-12-06 22:42:40,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 22:42:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-12-06 22:42:40,047 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2021-12-06 22:42:40,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:40,047 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-06 22:42:40,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 22:42:40,047 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-12-06 22:42:40,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:40,048 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:40,048 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:40,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:42:40,048 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:40,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:40,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1250925041, now seen corresponding path program 1 times [2021-12-06 22:42:40,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:42:40,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566663011] [2021-12-06 22:42:40,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:40,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:42:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:40,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:42:40,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:42:40,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566663011] [2021-12-06 22:42:40,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566663011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:40,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:40,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:42:40,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717366646] [2021-12-06 22:42:40,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:40,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:42:40,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:42:40,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:42:40,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:42:40,109 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:42:40,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:40,168 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-12-06 22:42:40,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 22:42:40,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2021-12-06 22:42:40,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:40,169 INFO L225 Difference]: With dead ends: 44 [2021-12-06 22:42:40,170 INFO L226 Difference]: Without dead ends: 37 [2021-12-06 22:42:40,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:42:40,172 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:42:40,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 71 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:42:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-06 22:42:40,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 20. [2021-12-06 22:42:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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 22:42:40,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-06 22:42:40,179 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 15 [2021-12-06 22:42:40,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:40,180 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-06 22:42:40,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:42:40,180 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-12-06 22:42:40,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:40,181 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:40,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:40,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:42:40,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:40,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:40,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1796523982, now seen corresponding path program 1 times [2021-12-06 22:42:40,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:42:40,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831805618] [2021-12-06 22:42:40,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:40,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:42:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:42:40,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:42:40,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831805618] [2021-12-06 22:42:40,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831805618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:40,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:40,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:42:40,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425427676] [2021-12-06 22:42:40,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:40,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:42:40,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:42:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:42:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:42:40,249 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:42:40,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:40,283 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-12-06 22:42:40,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 22:42:40,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) Word has length 15 [2021-12-06 22:42:40,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:40,284 INFO L225 Difference]: With dead ends: 41 [2021-12-06 22:42:40,284 INFO L226 Difference]: Without dead ends: 35 [2021-12-06 22:42:40,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:42:40,285 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:42:40,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:42:40,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-06 22:42:40,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2021-12-06 22:42:40,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 22:42:40,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-12-06 22:42:40,290 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2021-12-06 22:42:40,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:40,290 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-06 22:42:40,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 22:42:40,291 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-12-06 22:42:40,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:40,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:40,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:40,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:42:40,291 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:40,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1813534643, now seen corresponding path program 1 times [2021-12-06 22:42:40,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:42:40,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437527118] [2021-12-06 22:42:40,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:40,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:42:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:42:40,310 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:42:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:42:40,336 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:42:40,336 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:42:40,337 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:42:40,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:42:40,341 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-06 22:42:40,343 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:42:40,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:42:40 BoogieIcfgContainer [2021-12-06 22:42:40,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:42:40,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:42:40,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:42:40,369 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:42:40,369 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:42:39" (3/4) ... [2021-12-06 22:42:40,371 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:42:40,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:42:40,372 INFO L158 Benchmark]: Toolchain (without parser) took 1115.02ms. Allocated memory is still 115.3MB. Free memory was 79.0MB in the beginning and 74.0MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-06 22:42:40,372 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:42:40,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.58ms. Allocated memory is still 115.3MB. Free memory was 78.8MB in the beginning and 89.6MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:42:40,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.57ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 87.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:42:40,373 INFO L158 Benchmark]: Boogie Preprocessor took 17.24ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 87.0MB in the end (delta: 981.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:42:40,374 INFO L158 Benchmark]: RCFGBuilder took 213.13ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 22:42:40,374 INFO L158 Benchmark]: TraceAbstraction took 670.26ms. Allocated memory is still 115.3MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-12-06 22:42:40,374 INFO L158 Benchmark]: Witness Printer took 2.64ms. Allocated memory is still 115.3MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:42:40,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 115.3MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.58ms. Allocated memory is still 115.3MB. Free memory was 78.8MB in the beginning and 89.6MB in the end (delta: -10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.57ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 87.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.24ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 87.0MB in the end (delta: 981.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.13ms. Allocated memory is still 115.3MB. Free memory was 87.0MB in the beginning and 75.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 670.26ms. Allocated memory is still 115.3MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Witness Printer took 2.64ms. Allocated memory is still 115.3MB. Free memory is still 74.0MB. 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: 96]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticDOUBLEoperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of to_real at line 46. Possible FailurePath: [L1] int __return_main; [L17] double __return_104; VAL [__return_104=0, __return_main=0] [L20] double main__a; [L21] double main__r; [L22] main__a = __VERIFIER_nondet_double() [L23] int main____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0] [L24] COND TRUE main__a >= 20.0 VAL [__return_104=0, __return_main=0] [L26] COND TRUE main__a <= 30.0 [L28] main____CPAchecker_TMP_0 = 1 VAL [__return_104=0, __return_main=0, main____CPAchecker_TMP_0=1] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] double __tmp_1; [L34] __tmp_1 = main__a [L35] double inv__A; [L36] inv__A = __tmp_1 [L37] double inv__xi; [L38] double inv__xsi; [L39] double inv__temp; [L40] signed int inv__cond; [L41] signed int inv__exp; [L42] union double_int inv__A_u; [L43] union double_int inv__xi_u; [L44] inv__A_u.d = inv__A [L45] EXPR inv__A_u.i [L45] inv__exp = ((signed int)(((inv__A_u.i) & 2146435072) >> 20)) - 1023 [L46] inv__xi_u.d = 1 [L47] inv__xi_u.i = (1023 - inv__exp) << 20 [L48] EXPR inv__xi_u.d [L48] inv__xi = inv__xi_u.d [L49] inv__cond = 1 VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386501, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L51] COND TRUE !(inv__cond == 0) [L53] inv__xsi = (2 * inv__xi) - ((inv__A * inv__xi) * inv__xi) [L54] inv__temp = inv__xsi - inv__xi [L55] int inv____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386501, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L56] COND FALSE !(inv__temp > 1.0E-10) VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386501, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L67] COND FALSE !(inv__temp < -1.0E-10) [L73] inv____CPAchecker_TMP_0 = 0 VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386501, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L61] inv__cond = inv____CPAchecker_TMP_0 [L62] inv__xi = inv__xsi VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497] [L51] COND FALSE !(!(inv__cond == 0)) [L80] __return_104 = inv__xi [L81] main__r = __return_104 [L82] int main____CPAchecker_TMP_1; VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497, main__r=2145386499] [L83] COND FALSE !(main__r >= 0) VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497, main__r=2145386499] [L108] main____CPAchecker_TMP_1 = 0 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L90] int __tmp_2; [L91] __tmp_2 = main____CPAchecker_TMP_1 [L92] int __VERIFIER_assert__cond; [L93] __VERIFIER_assert__cond = __tmp_2 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L94] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L96] reach_error() VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 71 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 22:42:40,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/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_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/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_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/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_eac4499b-7a0e-4032-b478-1dc5510ab07c/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 f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:42:42,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:42:42,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:42:42,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:42:42,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:42:42,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:42:42,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:42:42,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:42:42,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:42:42,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:42:42,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:42:42,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:42:42,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:42:42,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:42:42,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:42:42,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:42:42,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:42:42,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:42:42,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:42:42,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:42:42,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:42:42,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:42:42,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:42:42,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:42:42,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:42:42,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:42:42,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:42:42,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:42:42,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:42:42,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:42:42,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:42:42,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:42:42,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:42:42,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:42:42,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:42:42,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:42:42,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:42:42,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:42:42,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:42:42,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:42:42,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:42:42,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 22:42:42,148 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:42:42,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:42:42,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:42:42,149 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:42:42,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:42:42,149 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:42:42,150 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:42:42,150 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:42:42,150 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:42:42,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:42:42,151 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:42:42,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:42:42,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:42:42,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:42:42,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:42:42,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:42:42,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:42:42,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:42:42,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:42:42,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 22:42:42,154 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2021-12-06 22:42:42,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:42:42,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:42:42,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:42:42,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:42:42,422 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:42:42,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:42,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/9d9ef1776/8a8626ea3b0d4f50bc56ad7a1e4a3dcb/FLAG3dd51efef [2021-12-06 22:42:42,831 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:42:42,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:42,836 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/9d9ef1776/8a8626ea3b0d4f50bc56ad7a1e4a3dcb/FLAG3dd51efef [2021-12-06 22:42:42,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/data/9d9ef1776/8a8626ea3b0d4f50bc56ad7a1e4a3dcb [2021-12-06 22:42:42,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:42:42,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:42:42,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:42:42,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:42:42,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:42:42,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:42:42" (1/1) ... [2021-12-06 22:42:42,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611fdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:42, skipping insertion in model container [2021-12-06 22:42:42,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:42:42" (1/1) ... [2021-12-06 22:42:42,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:42:42,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:42:42,985 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-06 22:42:42,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:42:42,997 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:42:43,033 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_eac4499b-7a0e-4032-b478-1dc5510ab07c/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-06 22:42:43,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:42:43,053 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:42:43,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43 WrapperNode [2021-12-06 22:42:43,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:42:43,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:42:43,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:42:43,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:42:43,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,093 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 99 [2021-12-06 22:42:43,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:42:43,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:42:43,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:42:43,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:42:43,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:42:43,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:42:43,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:42:43,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:42:43,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (1/1) ... [2021-12-06 22:42:43,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:42:43,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:42:43,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:42:43,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:42:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 22:42:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:42:43,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:42:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:42:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 22:42:43,257 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:42:43,259 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:42:45,574 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:42:45,579 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:42:45,580 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:42:45,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:42:45 BoogieIcfgContainer [2021-12-06 22:42:45,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:42:45,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:42:45,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:42:45,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:42:45,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:42:42" (1/3) ... [2021-12-06 22:42:45,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acf6857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:42:45, skipping insertion in model container [2021-12-06 22:42:45,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:42:43" (2/3) ... [2021-12-06 22:42:45,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acf6857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:42:45, skipping insertion in model container [2021-12-06 22:42:45,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:42:45" (3/3) ... [2021-12-06 22:42:45,588 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2021-12-06 22:42:45,592 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:42:45,592 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:42:45,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:42:45,639 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 22:42:45,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:42:45,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 22:42:45,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-06 22:42:45,654 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:45,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:45,655 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:45,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash -938930996, now seen corresponding path program 1 times [2021-12-06 22:42:45,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:42:45,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715388793] [2021-12-06 22:42:45,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:45,669 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:42:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:42:45,670 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:42:45,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 22:42:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:45,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:42:45,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:42:45,823 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 22:42:45,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:42:45,823 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:42:45,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715388793] [2021-12-06 22:42:45,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715388793] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:45,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:45,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:42:45,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096270067] [2021-12-06 22:42:45,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:45,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:42:45,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:42:45,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:42:45,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:42:45,855 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:42:48,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 22:42:48,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:48,183 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2021-12-06 22:42:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:42:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-12-06 22:42:48,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:48,192 INFO L225 Difference]: With dead ends: 32 [2021-12-06 22:42:48,193 INFO L226 Difference]: Without dead ends: 19 [2021-12-06 22:42:48,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:42:48,198 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 22:42:48,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 22:42:48,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-12-06 22:42:48,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-12-06 22:42:48,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 22:42:48,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-12-06 22:42:48,226 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2021-12-06 22:42:48,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:48,226 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-06 22:42:48,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 22:42:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-12-06 22:42:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:48,227 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:48,227 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:48,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:42:48,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:42:48,430 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:48,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:48,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1250925041, now seen corresponding path program 1 times [2021-12-06 22:42:48,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:42:48,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758101603] [2021-12-06 22:42:48,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:48,437 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:42:48,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:42:48,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:42:48,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 22:42:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:49,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:42:49,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:42:49,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 22:42:49,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:42:49,157 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:42:49,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758101603] [2021-12-06 22:42:49,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [758101603] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:49,157 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:49,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:42:49,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844864059] [2021-12-06 22:42:49,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:49,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:42:49,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:42:49,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:42:49,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:42:49,160 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:42:51,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 22:42:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:51,543 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-12-06 22:42:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:42:51,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Word has length 15 [2021-12-06 22:42:51,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:51,545 INFO L225 Difference]: With dead ends: 28 [2021-12-06 22:42:51,545 INFO L226 Difference]: Without dead ends: 21 [2021-12-06 22:42:51,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:42:51,547 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-06 22:42:51,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-06 22:42:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-06 22:42:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-12-06 22:42:51,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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 22:42:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-06 22:42:51,552 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 15 [2021-12-06 22:42:51,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:51,552 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-06 22:42:51,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:42:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-12-06 22:42:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:51,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:51,553 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:51,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 22:42:51,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:42:51,755 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:51,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:51,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1796523982, now seen corresponding path program 1 times [2021-12-06 22:42:51,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:42:51,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140173128] [2021-12-06 22:42:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:51,760 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:42:51,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:42:51,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:42:51,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 22:42:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:52,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:42:52,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:42:52,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-06 22:42:52,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:42:52,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:42:52,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140173128] [2021-12-06 22:42:52,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140173128] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:42:52,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:42:52,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:42:52,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971587492] [2021-12-06 22:42:52,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:42:52,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:42:52,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:42:52,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:42:52,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:42:52,453 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:42:52,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:42:52,524 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2021-12-06 22:42:52,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:42:52,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) Word has length 15 [2021-12-06 22:42:52,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:42:52,525 INFO L225 Difference]: With dead ends: 24 [2021-12-06 22:42:52,525 INFO L226 Difference]: Without dead ends: 20 [2021-12-06 22:42:52,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:42:52,527 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 63 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 22:42:52,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 63 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:42:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-06 22:42:52,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-06 22:42:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 22:42:52,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-12-06 22:42:52,532 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2021-12-06 22:42:52,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:42:52,532 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-06 22:42:52,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 22:42:52,532 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-12-06 22:42:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 22:42:52,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:42:52,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:42:52,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 22:42:52,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:42:52,735 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:42:52,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:42:52,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1813534643, now seen corresponding path program 1 times [2021-12-06 22:42:52,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:42:52,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626373742] [2021-12-06 22:42:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:42:52,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:42:52,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:42:52,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:42:52,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eac4499b-7a0e-4032-b478-1dc5510ab07c/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 22:42:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:42:53,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 22:42:53,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:42:53,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 93 [2021-12-06 22:43:59,839 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= |c_ULTIMATE.start_main_~inv__temp~0#1| (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~inv__xsi~0#1| .cse0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse0) .cse0)) |c_ULTIMATE.start_main_~inv__xsi~0#1|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 22:46:10,166 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse1 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse1) ((_ extract 62 52) .cse1) ((_ extract 51 0) .cse1))))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (not (fp.lt (fp.sub c_currentRoundingMode |c_ULTIMATE.start_main_~inv__xsi~0#1| .cse0) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0))))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse0) .cse0)) |c_ULTIMATE.start_main_~inv__xsi~0#1|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 22:47:30,219 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0))))) (= .cse0 |c_ULTIMATE.start_main_~inv__xi~0#1|))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 22:48:50,233 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32))) (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0))))) (= |c_ULTIMATE.start_main_~main__r~0#1| .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-12-06 22:50:12,512 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (not (fp.lt (fp.sub roundNearestTiesToEven .cse0 .cse1) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0))))) (not (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from false [2021-12-06 22:50:14,583 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~inv__exp~0#1| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64)) (|ULTIMATE.start_main_~inv__A~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (_ bv1023 32) (bvneg |ULTIMATE.start_main_~inv__exp~0#1|)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~inv__A~0#1| .cse1) .cse1)))) (and (fp.leq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv1 32))) (not (fp.lt (fp.sub roundNearestTiesToEven .cse0 .cse1) (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0))))) (not (fp.geq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.geq |ULTIMATE.start_main_~inv__A~0#1| ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from true [2021-12-06 22:54:15,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-12-06 22:54:15,434 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 22:54:26,818 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~inv__A~0#1| |c_ULTIMATE.start_main_~inv__xi~0#1|) |c_ULTIMATE.start_main_~inv__xi~0#1|)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from false [2021-12-06 22:54:28,957 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~inv__A~0#1| |c_ULTIMATE.start_main_~inv__xi~0#1|) |c_ULTIMATE.start_main_~inv__xi~0#1|)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~inv__xi~0#1|) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) is different from true [2021-12-06 22:54:28,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 715 treesize of output 673 [2021-12-06 22:55:10,347 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~inv__exp~0#1_4| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (bvneg |v_ULTIMATE.start_main_~inv__exp~0#1_4|) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__a~0#1| .cse1) .cse1)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))))) is different from true [2021-12-06 22:55:36,186 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~inv__exp~0#1_4| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (bvneg |v_ULTIMATE.start_main_~inv__exp~0#1_4|) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~main__a~0#1| .cse1) .cse1)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))))) (not (fp.leq |c_ULTIMATE.start_main_~main__a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0)))) is different from true [2021-12-06 22:56:57,592 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__a~0#1| (_ FloatingPoint 11 53))) (or (not (fp.geq |ULTIMATE.start_main_~main__a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (forall ((|v_ULTIMATE.start_main_~inv__exp~0#1_4| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (bvneg |v_ULTIMATE.start_main_~inv__exp~0#1_4|) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__a~0#1| .cse1) .cse1)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))))) (not (fp.leq |ULTIMATE.start_main_~main__a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0))))) is different from false [2021-12-06 22:56:59,716 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~main__a~0#1| (_ FloatingPoint 11 53))) (or (not (fp.geq |ULTIMATE.start_main_~main__a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (forall ((|v_ULTIMATE.start_main_~inv__exp~0#1_4| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (let ((.cse1 (let ((.cse2 (concat ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) (bvshl (bvadd (bvneg |v_ULTIMATE.start_main_~inv__exp~0#1_4|) (_ bv1023 32)) (_ bv20 32))))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse1) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~main__a~0#1| .cse1) .cse1)))) (or (fp.lt (fp.sub c_currentRoundingMode .cse0 .cse1) (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ((_ to_fp 11 53) c_currentRoundingMode (_ bv1 32)))))))) (not (fp.leq |ULTIMATE.start_main_~main__a~0#1| ((_ to_fp 11 53) c_currentRoundingMode 30.0))))) is different from true