./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:48:33,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:48:33,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:48:33,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:48:33,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:48:33,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:48:33,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:48:33,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:48:33,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:48:33,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:48:33,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:48:33,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:48:33,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:48:33,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:48:33,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:48:33,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:48:33,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:48:33,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:48:33,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:48:33,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:48:33,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:48:33,790 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:48:33,792 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:48:33,793 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:48:33,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:48:33,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:48:33,797 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:48:33,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:48:33,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:48:33,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:48:33,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:48:33,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:48:33,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:48:33,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:48:33,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:48:33,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:48:33,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:48:33,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:48:33,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:48:33,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:48:33,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:48:33,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:48:33,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:48:33,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:48:33,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:48:33,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:48:33,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:48:33,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:48:33,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:48:33,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:48:33,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:48:33,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:48:33,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:48:33,834 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:48:33,834 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:48:33,834 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:48:33,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:48:33,835 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:48:33,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:48:33,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:48:33,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:48:33,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:48:33,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:48:33,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:48:33,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:48:33,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:48:33,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:48:33,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:48:33,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:48:33,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:48:33,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:48:33,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:48:33,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:48:33,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:48:33,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:48:33,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:48:33,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:48:33,840 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2021-11-12 23:48:34,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:48:34,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:48:34,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:48:34,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:48:34,126 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:48:34,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-11-12 23:48:34,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/4afe76fd7/e3907670acde489d862bc4712e6402c0/FLAG654874b9d [2021-11-12 23:48:34,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:48:34,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-11-12 23:48:34,639 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/4afe76fd7/e3907670acde489d862bc4712e6402c0/FLAG654874b9d [2021-11-12 23:48:35,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/4afe76fd7/e3907670acde489d862bc4712e6402c0 [2021-11-12 23:48:35,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:48:35,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:48:35,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:48:35,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:48:35,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:48:35,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@392c5f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35, skipping insertion in model container [2021-11-12 23:48:35,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:48:35,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:48:35,241 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-11-12 23:48:35,250 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-11-12 23:48:35,256 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-11-12 23:48:35,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:48:35,266 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:48:35,281 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-11-12 23:48:35,285 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-11-12 23:48:35,288 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-11-12 23:48:35,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:48:35,302 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:48:35,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35 WrapperNode [2021-11-12 23:48:35,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:48:35,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:48:35,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:48:35,304 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:48:35,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:48:35,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:48:35,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:48:35,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:48:35,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:48:35,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:48:35,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:48:35,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:48:35,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (1/1) ... [2021-11-12 23:48:35,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:48:35,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:48:35,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:48:35,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:48:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 23:48:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:48:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:48:35,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:48:35,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:48:35,682 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:48:35,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:35 BoogieIcfgContainer [2021-11-12 23:48:35,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:48:35,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:48:35,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:48:35,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:48:35,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:48:35" (1/3) ... [2021-11-12 23:48:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218fb68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:48:35, skipping insertion in model container [2021-11-12 23:48:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:35" (2/3) ... [2021-11-12 23:48:35,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@218fb68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:48:35, skipping insertion in model container [2021-11-12 23:48:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:35" (3/3) ... [2021-11-12 23:48:35,705 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-11-12 23:48:35,710 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:48:35,710 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:48:35,757 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:48:35,764 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=FINITE_AUTOMATA, 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 [2021-11-12 23:48:35,765 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:48:35,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 10 states have (on average 1.6) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:48:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-12 23:48:35,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:35,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-12 23:48:35,784 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash 62626, now seen corresponding path program 1 times [2021-11-12 23:48:35,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 23:48:35,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102548598] [2021-11-12 23:48:35,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:35,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 23:48:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:48:35,910 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 23:48:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 23:48:35,947 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 23:48:35,949 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 23:48:35,950 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-12 23:48:35,952 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-12 23:48:35,953 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-12 23:48:35,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 23:48:35,958 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-12 23:48:35,961 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:48:35,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:48:35 BoogieIcfgContainer [2021-11-12 23:48:35,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:48:35,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:48:35,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:48:35,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:48:35,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:35" (3/4) ... [2021-11-12 23:48:35,985 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 23:48:35,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:48:35,986 INFO L158 Benchmark]: Toolchain (without parser) took 943.09ms. Allocated memory is still 104.9MB. Free memory was 64.5MB in the beginning and 52.4MB in the end (delta: 12.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-11-12 23:48:35,987 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:35,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.85ms. Allocated memory is still 104.9MB. Free memory was 64.3MB in the beginning and 78.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:48:35,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.69ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:35,989 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.7MB in the end (delta: 934.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:35,989 INFO L158 Benchmark]: RCFGBuilder took 316.15ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 66.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-12 23:48:35,990 INFO L158 Benchmark]: TraceAbstraction took 294.06ms. Allocated memory is still 104.9MB. Free memory was 65.9MB in the beginning and 52.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 23:48:35,991 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 104.9MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 121.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:35,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 81.3MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.85ms. Allocated memory is still 104.9MB. Free memory was 64.3MB in the beginning and 78.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.69ms. Allocated memory is still 104.9MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 75.7MB in the end (delta: 934.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.15ms. Allocated memory is still 104.9MB. Free memory was 75.7MB in the beginning and 66.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 294.06ms. Allocated memory is still 104.9MB. Free memory was 65.9MB in the beginning and 52.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 104.9MB. Free memory was 52.5MB in the beginning and 52.4MB in the end (delta: 121.0kB). 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: 25]: 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 25, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L49] CALL multiply() [L20] float f1=0x1.000000p-1f; [L21] float f2=0x1.fffffep-126f; [L23] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L25] reach_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - UnprovableResult [Line: 35]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-12 23:48:36,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/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_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:48:38,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:48:38,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:48:38,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:48:38,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:48:38,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:48:38,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:48:38,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:48:38,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:48:38,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:48:38,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:48:38,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:48:38,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:48:38,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:48:38,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:48:38,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:48:38,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:48:38,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:48:38,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:48:38,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:48:38,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:48:38,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:48:38,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:48:38,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:48:38,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:48:38,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:48:38,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:48:38,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:48:38,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:48:38,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:48:38,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:48:38,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:48:38,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:48:38,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:48:38,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:48:38,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:48:38,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:48:38,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:48:38,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:48:38,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:48:38,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:48:38,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:48:38,606 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:48:38,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:48:38,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:48:38,608 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:48:38,608 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:48:38,608 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:48:38,609 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:48:38,609 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:48:38,609 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:48:38,609 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:48:38,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:48:38,612 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:48:38,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:48:38,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:48:38,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:48:38,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:48:38,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:48:38,614 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:48:38,614 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:48:38,614 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:48:38,614 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:48:38,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:48:38,615 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:48:38,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:48:38,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:48:38,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:48:38,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:48:38,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:48:38,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:48:38,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:48:38,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:48:38,617 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:48:38,617 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:48:38,617 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:48:38,618 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:48:38,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:48:38,619 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e577c29310ee115b251b151455f7420e49d4b5a193d4ed2cde0dcf868c272d0 [2021-11-12 23:48:39,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:48:39,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:48:39,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:48:39,056 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:48:39,056 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:48:39,058 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-11-12 23:48:39,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/f11a66499/473e8d1353c1458bb0a22611b3a6d910/FLAG765188ddc [2021-11-12 23:48:39,696 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:48:39,697 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c [2021-11-12 23:48:39,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/f11a66499/473e8d1353c1458bb0a22611b3a6d910/FLAG765188ddc [2021-11-12 23:48:40,145 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/data/f11a66499/473e8d1353c1458bb0a22611b3a6d910 [2021-11-12 23:48:40,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:48:40,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:48:40,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:48:40,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:48:40,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:48:40,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d5ceb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40, skipping insertion in model container [2021-11-12 23:48:40,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:48:40,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:48:40,332 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-11-12 23:48:40,342 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-11-12 23:48:40,349 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-11-12 23:48:40,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:48:40,364 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:48:40,380 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1010,1023] [2021-11-12 23:48:40,384 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1167,1180] [2021-11-12 23:48:40,387 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_b0e2cab6-b050-452a-9066-99fde9b9bafc/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6.c[1293,1306] [2021-11-12 23:48:40,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:48:40,424 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:48:40,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40 WrapperNode [2021-11-12 23:48:40,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:48:40,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:48:40,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:48:40,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:48:40,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:48:40,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:48:40,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:48:40,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:48:40,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:48:40,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:48:40,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:48:40,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:48:40,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (1/1) ... [2021-11-12 23:48:40,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:48:40,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:48:40,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:48:40,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:48:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:48:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:48:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:48:40,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:48:41,507 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:48:41,508 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:48:41,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:41 BoogieIcfgContainer [2021-11-12 23:48:41,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:48:41,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:48:41,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:48:41,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:48:41,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:48:40" (1/3) ... [2021-11-12 23:48:41,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198db40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:48:41, skipping insertion in model container [2021-11-12 23:48:41,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:48:40" (2/3) ... [2021-11-12 23:48:41,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198db40b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:48:41, skipping insertion in model container [2021-11-12 23:48:41,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:41" (3/3) ... [2021-11-12 23:48:41,517 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp6.c [2021-11-12 23:48:41,523 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:48:41,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:48:41,620 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:48:41,635 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=FINITE_AUTOMATA, 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 [2021-11-12 23:48:41,635 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:48:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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) [2021-11-12 23:48:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-12 23:48:41,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:41,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-12 23:48:41,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:41,674 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-11-12 23:48:41,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:41,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378787199] [2021-11-12 23:48:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:41,687 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:41,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:41,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:41,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:48:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:41,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:48:41,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:41,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:41,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:41,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378787199] [2021-11-12 23:48:41,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378787199] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:41,996 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:41,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:48:41,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272003734] [2021-11-12 23:48:41,998 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:42,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:48:42,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:42,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:48:42,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:42,033 INFO L87 Difference]: Start difference. First operand has 17 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 16 states have internal predecessors, (19), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-12 23:48:42,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:42,489 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-11-12 23:48:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:42,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 4 [2021-11-12 23:48:42,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:42,498 INFO L225 Difference]: With dead ends: 29 [2021-11-12 23:48:42,498 INFO L226 Difference]: Without dead ends: 11 [2021-11-12 23:48:42,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:42,505 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 396.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 437.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:42,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 437.95ms Time] [2021-11-12 23:48:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-11-12 23:48:42,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-11-12 23:48:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.1111111111111112) 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) [2021-11-12 23:48:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-11-12 23:48:42,535 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 4 [2021-11-12 23:48:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:42,536 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-11-12 23:48:42,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-11-12 23:48:42,536 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-11-12 23:48:42,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-12 23:48:42,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:42,537 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-12 23:48:42,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:48:42,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:42,750 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:42,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:42,752 INFO L85 PathProgramCache]: Analyzing trace with hash 889629862, now seen corresponding path program 1 times [2021-11-12 23:48:42,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:42,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406149164] [2021-11-12 23:48:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:42,753 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:42,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:42,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:42,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:48:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:43,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:48:43,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:43,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:43,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:43,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406149164] [2021-11-12 23:48:43,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406149164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:43,261 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:43,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:48:43,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541174472] [2021-11-12 23:48:43,261 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:43,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:48:43,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:43,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:48:43,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:43,264 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 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) [2021-11-12 23:48:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:43,586 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-11-12 23:48:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 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 6 [2021-11-12 23:48:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:43,594 INFO L225 Difference]: With dead ends: 11 [2021-11-12 23:48:43,594 INFO L226 Difference]: Without dead ends: 9 [2021-11-12 23:48:43,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:43,596 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 272.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 319.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:43,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 319.30ms Time] [2021-11-12 23:48:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-12 23:48:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-12 23:48:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-11-12 23:48:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-12 23:48:43,600 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 6 [2021-11-12 23:48:43,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:43,600 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-12 23:48:43,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 5 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) [2021-11-12 23:48:43,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-12 23:48:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-12 23:48:43,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:48:43,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:48:43,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 23:48:43,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:43,803 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:48:43,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:48:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash 235930184, now seen corresponding path program 1 times [2021-11-12 23:48:43,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:48:43,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783873223] [2021-11-12 23:48:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:48:43,805 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:48:43,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:48:43,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:48:43,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:48:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:48:44,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:48:44,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:48:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:44,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:48:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:48:44,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:48:44,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783873223] [2021-11-12 23:48:44,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783873223] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:48:44,344 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:48:44,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-12 23:48:44,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691322022] [2021-11-12 23:48:44,345 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:48:44,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:48:44,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:48:44,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:48:44,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:44,346 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand has 6 states, 6 states have (on average 2.5) 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) [2021-11-12 23:48:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:48:44,896 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-11-12 23:48:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:48:44,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) 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 8 [2021-11-12 23:48:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:48:44,902 INFO L225 Difference]: With dead ends: 9 [2021-11-12 23:48:44,902 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:48:44,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:48:44,905 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 504.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 547.39ms IncrementalHoareTripleChecker+Time [2021-11-12 23:48:44,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 1 Invalid, 10 Unknown, 0 Unchecked, 0.29ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 547.39ms Time] [2021-11-12 23:48:44,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:48:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:48:44,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-12 23:48:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:48:44,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-11-12 23:48:44,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:48:44,907 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:48:44,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) 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) [2021-11-12 23:48:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:48:44,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:48:44,910 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-11-12 23:48:44,910 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2021-11-12 23:48:44,911 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2021-11-12 23:48:44,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:48:45,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:48:45,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 23:48:45,127 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 23:48:45,127 INFO L858 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 45) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L5(lines 5 26) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 23:48:45,128 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 23:48:45,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 23:48:45,129 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 36) no Hoare annotation was computed. [2021-11-12 23:48:45,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2021-11-12 23:48:45,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2021-11-12 23:48:45,129 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 52) no Hoare annotation was computed. [2021-11-12 23:48:45,130 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-12 23:48:45,130 INFO L858 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-11-12 23:48:45,133 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-12 23:48:45,135 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 23:48:45,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 11:48:45 BoogieIcfgContainer [2021-11-12 23:48:45,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 23:48:45,140 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 23:48:45,140 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 23:48:45,140 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 23:48:45,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:48:41" (3/4) ... [2021-11-12 23:48:45,144 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 23:48:45,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-12 23:48:45,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-12 23:48:45,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 23:48:45,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 23:48:45,188 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 23:48:45,188 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 23:48:45,188 INFO L158 Benchmark]: Toolchain (without parser) took 5039.91ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.0MB in the beginning and 27.8MB in the end (delta: -1.8MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,189 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:45,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.54ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 25.8MB in the beginning and 49.8MB in the end (delta: -24.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.57ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,190 INFO L158 Benchmark]: Boogie Preprocessor took 44.74ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 47.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:48:45,191 INFO L158 Benchmark]: RCFGBuilder took 984.08ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 37.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,191 INFO L158 Benchmark]: TraceAbstraction took 3628.21ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 30.7MB in the end (delta: 6.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,191 INFO L158 Benchmark]: Witness Printer took 47.68ms. Allocated memory is still 67.1MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:48:45,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 29.9MB in the beginning and 29.8MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.54ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 25.8MB in the beginning and 49.8MB in the end (delta: -24.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.57ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 48.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.74ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 47.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 984.08ms. Allocated memory is still 67.1MB. Free memory was 47.0MB in the beginning and 37.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3628.21ms. Allocated memory is still 67.1MB. Free memory was 37.2MB in the beginning and 30.7MB in the end (delta: 6.6MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Witness Printer took 47.68ms. Allocated memory is still 67.1MB. Free memory was 30.3MB in the beginning and 27.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 25]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 44]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 1304.64ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1173.87ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 32 mSolverCounterSat, 1.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 11 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-12 23:48:45,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0e2cab6-b050-452a-9066-99fde9b9bafc/bin/utaipan-vmNK8stdcF/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 Writing output log to file Ultimate.log Result: TRUE