./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg --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 b76e3e70ed108f92e769876308a925ebb8bab0a1a08c7e1126b22b4345d7700c ....................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg --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 b76e3e70ed108f92e769876308a925ebb8bab0a1a08c7e1126b22b4345d7700c ..................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:48:05,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:05,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:05,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:05,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:05,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:05,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:05,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:05,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:05,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:05,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:05,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:05,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:05,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:05,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:05,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:05,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:05,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:05,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:05,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:05,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:05,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:05,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:05,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:05,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:05,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:05,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:05,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:05,634 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:05,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:05,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:05,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:05,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:05,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:05,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:05,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:05,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:05,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:05,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:05,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:05,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:05,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:48:05,680 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:05,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:05,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:05,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:05,683 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:05,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:05,683 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:05,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:05,684 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:05,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:05,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:05,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:05,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:48:05,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:05,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:48:05,686 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:05,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:48:05,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:05,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:48:05,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:05,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:05,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:05,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:05,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:05,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:05,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:48:05,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:48:05,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:48:05,689 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:48:05,690 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:48:05,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:48:05,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:05,690 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b76e3e70ed108f92e769876308a925ebb8bab0a1a08c7e1126b22b4345d7700c [2021-10-28 09:48:06,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:06,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:06,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:06,070 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:06,071 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:06,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-10-28 09:48:06,161 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/5952ea478/7f16b9612a0646edb92ded2e419cfad8/FLAG72107d279 [2021-10-28 09:48:06,792 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:06,807 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-10-28 09:48:06,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/5952ea478/7f16b9612a0646edb92ded2e419cfad8/FLAG72107d279 [2021-10-28 09:48:07,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/5952ea478/7f16b9612a0646edb92ded2e419cfad8 [2021-10-28 09:48:07,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:07,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:48:07,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:07,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:07,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:07,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e592a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07, skipping insertion in model container [2021-10-28 09:48:07,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,132 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:07,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:07,421 WARN L228 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1245,1258] [2021-10-28 09:48:07,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:07,438 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:07,475 WARN L228 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1245,1258] [2021-10-28 09:48:07,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:07,500 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:07,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07 WrapperNode [2021-10-28 09:48:07,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:07,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:07,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:48:07,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:48:07,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:07,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:07,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:07,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:07,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:07,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:07,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:07,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:07,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (1/1) ... [2021-10-28 09:48:07,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:07,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:07,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:07,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:07,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:48:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:07,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:07,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:07,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:07,985 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 09:48:07,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:07 BoogieIcfgContainer [2021-10-28 09:48:07,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:07,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:48:07,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:48:07,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:48:07,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:48:07" (1/3) ... [2021-10-28 09:48:07,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a98653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:07, skipping insertion in model container [2021-10-28 09:48:07,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:07" (2/3) ... [2021-10-28 09:48:08,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a98653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:07, skipping insertion in model container [2021-10-28 09:48:08,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:07" (3/3) ... [2021-10-28 09:48:08,002 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2021-10-28 09:48:08,013 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:48:08,013 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:48:08,087 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:48:08,097 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 [2021-10-28 09:48:08,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:48:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:08,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:48:08,127 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:08,128 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:08,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:48:08,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:08,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1267787092, now seen corresponding path program 1 times [2021-10-28 09:48:08,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:08,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19748579] [2021-10-28 09:48:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:08,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:08,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:08,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19748579] [2021-10-28 09:48:08,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19748579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:08,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:08,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:48:08,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013881043] [2021-10-28 09:48:08,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:48:08,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:08,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:48:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:48:08,447 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-28 09:48:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:08,464 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-28 09:48:08,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:48:08,467 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-28 09:48:08,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:48:08,477 INFO L225 Difference]: With dead ends: 27 [2021-10-28 09:48:08,477 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 09:48:08,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:48:08,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 09:48:08,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 09:48:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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) [2021-10-28 09:48:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-28 09:48:08,518 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2021-10-28 09:48:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:48:08,519 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-28 09:48:08,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-28 09:48:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-28 09:48:08,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:48:08,521 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:08,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:08,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:48:08,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:48:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2077133718, now seen corresponding path program 1 times [2021-10-28 09:48:08,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:08,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724739829] [2021-10-28 09:48:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:08,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:08,548 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:08,597 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:08,601 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:48:08,604 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:48:08,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:48:08,611 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:48:08,615 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:48:08,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:48:08 BoogieIcfgContainer [2021-10-28 09:48:08,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:48:08,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:48:08,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:48:08,653 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:48:08,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:07" (3/4) ... [2021-10-28 09:48:08,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:48:08,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:48:08,662 INFO L168 Benchmark]: Toolchain (without parser) took 1550.08 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 75.6 MB in the beginning and 91.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,663 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 74.1 MB in the end (delta: 51.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:08,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.18 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 65.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,677 INFO L168 Benchmark]: Boogie Preprocessor took 54.86 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 62.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,678 INFO L168 Benchmark]: RCFGBuilder took 376.12 ms. Allocated memory is still 98.6 MB. Free memory was 62.6 MB in the beginning and 53.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:48:08,679 INFO L168 Benchmark]: TraceAbstraction took 658.42 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 53.3 MB in the beginning and 91.7 MB in the end (delta: -38.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:08,679 INFO L168 Benchmark]: Witness Printer took 6.54 ms. Allocated memory is still 127.9 MB. Free memory is still 91.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:48:08,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 74.1 MB in the end (delta: 51.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.18 ms. Allocated memory is still 98.6 MB. Free memory was 75.5 MB in the beginning and 65.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.49 ms. Allocated memory is still 98.6 MB. Free memory was 65.3 MB in the beginning and 63.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.86 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 62.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 376.12 ms. Allocated memory is still 98.6 MB. Free memory was 62.6 MB in the beginning and 53.8 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 658.42 ms. Allocated memory was 98.6 MB in the beginning and 127.9 MB in the end (delta: 29.4 MB). Free memory was 53.3 MB in the beginning and 91.7 MB in the end (delta: -38.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.54 ms. Allocated memory is still 127.9 MB. Free memory is still 91.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L35] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:48:08,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:48:11,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:11,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:11,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:11,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:11,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:11,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:11,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:11,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:11,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:11,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:11,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:11,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:11,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:11,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:11,630 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:11,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:11,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:11,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:11,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:11,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:11,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:11,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:11,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:11,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:11,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:11,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:11,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:11,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:11,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:11,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:11,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:11,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:11,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:11,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:11,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:11,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:11,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:11,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:11,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:11,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:11,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 09:48:11,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:11,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:11,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:11,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:11,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:11,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:11,748 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:11,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:11,748 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:11,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:11,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:11,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:48:11,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:48:11,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:48:11,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:48:11,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:48:11,751 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:11,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:48:11,752 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:11,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:48:11,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:11,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:11,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:48:11,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:11,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:11,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:48:11,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:48:11,754 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:48:11,754 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:48:11,754 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:48:11,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:48:11,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:48:11,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:11,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:48:11,756 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b76e3e70ed108f92e769876308a925ebb8bab0a1a08c7e1126b22b4345d7700c [2021-10-28 09:48:12,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:12,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:12,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:12,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:12,312 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:12,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-10-28 09:48:12,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/1e64e75fb/e4c47e49140342d7963cf8a176cb031d/FLAG7ad716c66 [2021-10-28 09:48:12,999 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:12,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i [2021-10-28 09:48:13,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/1e64e75fb/e4c47e49140342d7963cf8a176cb031d/FLAG7ad716c66 [2021-10-28 09:48:13,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/data/1e64e75fb/e4c47e49140342d7963cf8a176cb031d [2021-10-28 09:48:13,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:13,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:48:13,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:13,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:13,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:13,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a92f08c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13, skipping insertion in model container [2021-10-28 09:48:13,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:13,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:13,623 WARN L228 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1245,1258] [2021-10-28 09:48:13,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:13,658 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:13,709 WARN L228 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_39bef262-b625-4bbc-88dd-01213bdf1ab8/sv-benchmarks/c/floats-cdfpl/newton_2_7.i[1245,1258] [2021-10-28 09:48:13,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:13,744 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:13,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13 WrapperNode [2021-10-28 09:48:13,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:13,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:13,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:48:13,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:48:13,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:13,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:13,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:13,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:13,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:13,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:13,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:13,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:13,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (1/1) ... [2021-10-28 09:48:13,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:48:13,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:13,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:13,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:48:13,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:13,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:25,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:25,633 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-28 09:48:25,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:25 BoogieIcfgContainer [2021-10-28 09:48:25,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:25,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:48:25,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:48:25,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:48:25,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:48:13" (1/3) ... [2021-10-28 09:48:25,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caa18a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:25, skipping insertion in model container [2021-10-28 09:48:25,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:13" (2/3) ... [2021-10-28 09:48:25,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3caa18a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:48:25, skipping insertion in model container [2021-10-28 09:48:25,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:25" (3/3) ... [2021-10-28 09:48:25,646 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_2_7.i [2021-10-28 09:48:25,653 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:48:25,653 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:48:25,712 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:48:25,720 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 [2021-10-28 09:48:25,721 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:48:25,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:48:25,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:48:25,743 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:25,744 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:25,745 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:48:25,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1267787092, now seen corresponding path program 1 times [2021-10-28 09:48:25,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:25,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524081752] [2021-10-28 09:48:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:25,769 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:25,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:25,774 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:25,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:48:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:28,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:48:28,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:48:28,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:28,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:48:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:48:28,977 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:48:28,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524081752] [2021-10-28 09:48:28,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524081752] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:28,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:28,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:48:28,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063972619] [2021-10-28 09:48:28,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:48:28,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:48:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:48:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:48:29,018 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-28 09:48:29,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:29,036 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-28 09:48:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:48:29,038 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-28 09:48:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:48:29,050 INFO L225 Difference]: With dead ends: 27 [2021-10-28 09:48:29,051 INFO L226 Difference]: Without dead ends: 11 [2021-10-28 09:48:29,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:48:29,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-28 09:48:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 09:48:29,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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) [2021-10-28 09:48:29,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-10-28 09:48:29,086 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2021-10-28 09:48:29,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:48:29,086 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-10-28 09:48:29,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-28 09:48:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-10-28 09:48:29,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:48:29,087 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:48:29,088 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:29,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:48:29,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:48:29,290 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:48:29,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:29,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2077133718, now seen corresponding path program 1 times [2021-10-28 09:48:29,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:48:29,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446150230] [2021-10-28 09:48:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:29,294 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:48:29,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:48:29,297 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:48:29,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:51:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:03,336 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:12,317 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-28 09:51:12,318 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:51:12,320 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:51:12,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:12,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:51:12,526 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:51:12,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:51:12,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:51:12 BoogieIcfgContainer [2021-10-28 09:51:12,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:51:12,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:51:12,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:51:12,580 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:51:12,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:25" (3/4) ... [2021-10-28 09:51:12,583 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 09:51:12,637 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:51:12,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:51:12,639 INFO L168 Benchmark]: Toolchain (without parser) took 179293.77 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 67.4 MB in the end (delta: -9.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:12,642 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:12,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.12 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 75.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:12,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.60 ms. Allocated memory is still 92.3 MB. Free memory was 75.4 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:12,648 INFO L168 Benchmark]: Boogie Preprocessor took 73.09 ms. Allocated memory is still 92.3 MB. Free memory was 73.5 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:12,649 INFO L168 Benchmark]: RCFGBuilder took 11737.70 ms. Allocated memory is still 92.3 MB. Free memory was 72.3 MB in the beginning and 62.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:12,654 INFO L168 Benchmark]: TraceAbstraction took 166942.25 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 69.4 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:12,654 INFO L168 Benchmark]: Witness Printer took 57.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:12,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.12 ms. Allocated memory is still 92.3 MB. Free memory was 57.5 MB in the beginning and 75.4 MB in the end (delta: -17.8 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.60 ms. Allocated memory is still 92.3 MB. Free memory was 75.4 MB in the beginning and 73.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.09 ms. Allocated memory is still 92.3 MB. Free memory was 73.5 MB in the beginning and 72.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11737.70 ms. Allocated memory is still 92.3 MB. Free memory was 72.3 MB in the beginning and 62.0 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 166942.25 ms. Allocated memory is still 92.3 MB. Free memory was 61.5 MB in the beginning and 69.4 MB in the end (delta: -8.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 57.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 67.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L35] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 166.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 156.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:51:12,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39bef262-b625-4bbc-88dd-01213bdf1ab8/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...