./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270d.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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:33:50,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:33:50,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:33:50,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:33:50,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:33:50,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:33:50,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:33:50,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:33:50,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:33:50,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:33:50,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:33:50,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:33:50,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:33:50,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:33:50,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:33:50,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:33:50,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:33:50,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:33:50,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:33:50,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:33:50,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:33:50,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:33:50,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:33:50,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:33:50,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:33:50,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:33:50,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:33:50,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:33:50,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:33:50,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:33:50,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:33:50,810 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:33:50,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:33:50,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:33:50,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:33:50,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:33:50,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:33:50,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:33:50,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:33:50,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:33:50,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:33:50,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-13 01:33:50,866 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:33:50,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:33:50,870 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:33:50,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:33:50,871 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:33:50,871 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:33:50,871 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:33:50,872 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:33:50,878 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:33:50,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:33:50,879 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:33:50,880 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:33:50,880 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:33:50,880 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:33:50,880 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:33:50,880 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:33:50,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:33:50,881 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:33:50,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:33:50,882 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:33:50,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:33:50,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:33:50,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:33:50,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:33:50,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:33:50,883 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:33:50,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:33:50,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:33:50,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:33:50,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:33:50,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:33:50,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:50,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:33:50,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:33:50,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:33:50,887 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:33:50,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:33:50,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:33:50,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:33:50,888 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:33:50,888 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2021-11-13 01:33:51,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:33:51,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:33:51,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:33:51,188 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:33:51,189 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:33:51,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2021-11-13 01:33:51,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/bf731a6e4/f90518c3d964431792d1f9e05c3d3b9d/FLAGad7ee3c41 [2021-11-13 01:33:51,707 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:33:51,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2021-11-13 01:33:51,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/bf731a6e4/f90518c3d964431792d1f9e05c3d3b9d/FLAGad7ee3c41 [2021-11-13 01:33:52,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/bf731a6e4/f90518c3d964431792d1f9e05c3d3b9d [2021-11-13 01:33:52,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:33:52,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:33:52,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:52,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:33:52,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:33:52,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395b0b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52, skipping insertion in model container [2021-11-13 01:33:52,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:33:52,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:33:52,401 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2021-11-13 01:33:52,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:52,412 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:33:52,460 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2021-11-13 01:33:52,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:52,474 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:33:52,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52 WrapperNode [2021-11-13 01:33:52,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:52,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:52,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:33:52,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:33:52,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:52,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:33:52,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:33:52,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:33:52,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:33:52,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:33:52,618 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:33:52,618 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:33:52,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (1/1) ... [2021-11-13 01:33:52,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:52,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:33:52,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:33:52,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-13 01:33:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:33:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:33:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 01:33:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:33:52,685 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2021-11-13 01:33:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2021-11-13 01:33:53,442 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:33:53,443 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-13 01:33:53,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:53 BoogieIcfgContainer [2021-11-13 01:33:53,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:33:53,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:33:53,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:33:53,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:33:53,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:33:52" (1/3) ... [2021-11-13 01:33:53,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dccf93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:53, skipping insertion in model container [2021-11-13 01:33:53,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:52" (2/3) ... [2021-11-13 01:33:53,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dccf93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:53, skipping insertion in model container [2021-11-13 01:33:53,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:53" (3/3) ... [2021-11-13 01:33:53,454 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2021-11-13 01:33:53,458 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:33:53,458 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:33:53,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:33:53,514 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 [2021-11-13 01:33:53,515 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:33:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 67 states have (on average 1.7164179104477613) internal successors, (115), 68 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:33:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 01:33:53,554 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:53,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:53,555 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:33:53,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1867774098, now seen corresponding path program 1 times [2021-11-13 01:33:53,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:53,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348009661] [2021-11-13 01:33:53,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:53,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:33:53,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:33:53,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348009661] [2021-11-13 01:33:53,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348009661] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:53,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:53,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:33:53,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027324945] [2021-11-13 01:33:53,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:53,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:33:53,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:33:53,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:33:53,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:33:53,737 INFO L87 Difference]: Start difference. First operand has 72 states, 67 states have (on average 1.7164179104477613) internal successors, (115), 68 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-13 01:33:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:53,788 INFO L93 Difference]: Finished difference Result 143 states and 239 transitions. [2021-11-13 01:33:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:33:53,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2021-11-13 01:33:53,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:53,799 INFO L225 Difference]: With dead ends: 143 [2021-11-13 01:33:53,799 INFO L226 Difference]: Without dead ends: 70 [2021-11-13 01:33:53,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:33:53,806 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.42ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:53,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 10 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 19.42ms Time] [2021-11-13 01:33:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-13 01:33:53,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-13 01:33:53,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 66 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:33:53,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 84 transitions. [2021-11-13 01:33:53,845 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 84 transitions. Word has length 13 [2021-11-13 01:33:53,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:53,846 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 84 transitions. [2021-11-13 01:33:53,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-13 01:33:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 84 transitions. [2021-11-13 01:33:53,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 01:33:53,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:53,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:53,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:33:53,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:33:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:53,849 INFO L85 PathProgramCache]: Analyzing trace with hash -573064207, now seen corresponding path program 1 times [2021-11-13 01:33:53,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:33:53,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38856013] [2021-11-13 01:33:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:53,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:33:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:33:53,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 01:33:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 01:33:54,038 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-13 01:33:54,038 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-13 01:33:54,040 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:33:54,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:33:54,046 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-13 01:33:54,053 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:33:54,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:33:54 BoogieIcfgContainer [2021-11-13 01:33:54,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:33:54,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:33:54,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:33:54,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:33:54,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:53" (3/4) ... [2021-11-13 01:33:54,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 01:33:54,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:33:54,089 INFO L158 Benchmark]: Toolchain (without parser) took 2009.42ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 50.5MB in the end (delta: 15.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-13 01:33:54,089 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:33:54,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.02ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 75.9MB in the end (delta: -9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:33:54,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.44ms. Allocated memory is still 102.8MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:33:54,091 INFO L158 Benchmark]: Boogie Preprocessor took 63.66ms. Allocated memory is still 102.8MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:33:54,092 INFO L158 Benchmark]: RCFGBuilder took 835.38ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 45.9MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-13 01:33:54,092 INFO L158 Benchmark]: TraceAbstraction took 637.12ms. Allocated memory is still 102.8MB. Free memory was 45.4MB in the beginning and 50.5MB in the end (delta: -5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:33:54,093 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:33:54,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 102.8MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.02ms. Allocated memory is still 102.8MB. Free memory was 66.1MB in the beginning and 75.9MB in the end (delta: -9.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.44ms. Allocated memory is still 102.8MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.66ms. Allocated memory is still 102.8MB. Free memory was 73.8MB in the beginning and 71.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 835.38ms. Allocated memory is still 102.8MB. Free memory was 71.4MB in the beginning and 45.9MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 637.12ms. Allocated memory is still 102.8MB. Free memory was 45.4MB in the beginning and 50.5MB in the end (delta: -5.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 102.8MB. Free memory is still 50.5MB. 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: 236]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = __VERIFIER_nondet_float(); [L232] float y = -1.0f / 0.0f; [L233] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967296, b=4294967296, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=4294967296, \old(y)=4294967296, a=4294967298, b=4294967299, ha=251658241, hb=0, j=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] [L233] RET, EXPR __ieee754_hypotf(x, y) [L233] float res = __ieee754_hypotf(x, y); [L235] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=4294967297, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967297] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L235] RET, EXPR isinf_float(res) [L235] COND TRUE !isinf_float(res) [L236] reach_error() VAL [one_sqrt=1, res=4294967297, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 19.42ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 15.69ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 76 mSDtfsCounter, 10 mSolverCounterSat, 1.30ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 01:33:54,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:33:56,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:33:56,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:33:56,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:33:56,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:33:56,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:33:56,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:33:56,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:33:56,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:33:56,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:33:56,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:33:56,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:33:56,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:33:56,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:33:56,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:33:56,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:33:56,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:33:56,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:33:56,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:33:56,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:33:56,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:33:56,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:33:56,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:33:56,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:33:56,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:33:56,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:33:56,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:33:56,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:33:56,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:33:56,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:33:56,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:33:56,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:33:56,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:33:56,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:33:56,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:33:56,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:33:56,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:33:56,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:33:56,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:33:56,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:33:56,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:33:56,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-13 01:33:56,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:33:56,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:33:56,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:33:56,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:33:56,914 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:33:56,914 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:33:56,915 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:33:56,915 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:33:56,915 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:33:56,915 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:33:56,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:33:56,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:33:56,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:33:56,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:33:56,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:33:56,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:33:56,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:33:56,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:33:56,919 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:33:56,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:33:56,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:33:56,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:33:56,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:33:56,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:33:56,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:33:56,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:33:56,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:33:56,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:56,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:33:56,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:33:56,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:33:56,922 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:33:56,923 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:33:56,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:33:56,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:33:56,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:33:56,924 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2021-11-13 01:33:57,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:33:57,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:33:57,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:33:57,368 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:33:57,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:33:57,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2021-11-13 01:33:57,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/46c1c4901/9fa914e30b5b4e049bb50339029411f4/FLAG70611b888 [2021-11-13 01:33:57,961 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:33:57,961 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2021-11-13 01:33:57,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/46c1c4901/9fa914e30b5b4e049bb50339029411f4/FLAG70611b888 [2021-11-13 01:33:58,291 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/data/46c1c4901/9fa914e30b5b4e049bb50339029411f4 [2021-11-13 01:33:58,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:33:58,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:33:58,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:58,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:33:58,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:33:58,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400cb24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58, skipping insertion in model container [2021-11-13 01:33:58,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:33:58,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:33:58,627 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2021-11-13 01:33:58,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:58,641 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:33:58,687 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_5db9ee5c-08e6-40b5-b30c-ca673b195c67/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2021-11-13 01:33:58,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:33:58,703 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:33:58,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58 WrapperNode [2021-11-13 01:33:58,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:33:58,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:58,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:33:58,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:33:58,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:33:58,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:33:58,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:33:58,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:33:58,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:33:58,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:33:58,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:33:58,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:33:58,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (1/1) ... [2021-11-13 01:33:58,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:33:58,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:33:58,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:33:58,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:33:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:33:58,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:33:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-13 01:33:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:33:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:33:58,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:33:58,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-13 01:33:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:33:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:33:58,909 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2021-11-13 01:33:58,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2021-11-13 01:34:00,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:34:00,995 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-11-13 01:34:00,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:00 BoogieIcfgContainer [2021-11-13 01:34:00,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:34:01,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:34:01,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:34:01,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:34:01,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:33:58" (1/3) ... [2021-11-13 01:34:01,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f6b72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:01, skipping insertion in model container [2021-11-13 01:34:01,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:33:58" (2/3) ... [2021-11-13 01:34:01,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f6b72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:34:01, skipping insertion in model container [2021-11-13 01:34:01,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:00" (3/3) ... [2021-11-13 01:34:01,008 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2021-11-13 01:34:01,013 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:34:01,014 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:34:01,079 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:34:01,096 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 [2021-11-13 01:34:01,099 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:34:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:01,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 01:34:01,127 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:01,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:01,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:01,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:01,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1724151004, now seen corresponding path program 1 times [2021-11-13 01:34:01,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:01,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015908987] [2021-11-13 01:34:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:01,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:01,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:01,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:01,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:34:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:01,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 01:34:01,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:01,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:01,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:01,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015908987] [2021-11-13 01:34:01,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015908987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:01,525 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:01,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 01:34:01,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704034250] [2021-11-13 01:34:01,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:01,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:34:01,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:01,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:34:01,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:34:01,579 INFO L87 Difference]: Start difference. First operand has 89 states, 84 states have (on average 1.6904761904761905) internal successors, (142), 85 states have internal predecessors, (142), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) [2021-11-13 01:34:01,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:01,612 INFO L93 Difference]: Finished difference Result 176 states and 292 transitions. [2021-11-13 01:34:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:34:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) Word has length 16 [2021-11-13 01:34:01,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:01,623 INFO L225 Difference]: With dead ends: 176 [2021-11-13 01:34:01,623 INFO L226 Difference]: Without dead ends: 86 [2021-11-13 01:34:01,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:34:01,630 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.61ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:01,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 1.61ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 01:34:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-13 01:34:01,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2021-11-13 01:34:01,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2682926829268293) internal successors, (104), 82 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 108 transitions. [2021-11-13 01:34:01,675 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 108 transitions. Word has length 16 [2021-11-13 01:34:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 108 transitions. [2021-11-13 01:34:01,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 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) [2021-11-13 01:34:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 108 transitions. [2021-11-13 01:34:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 01:34:01,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:01,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:01,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:01,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:01,900 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:01,901 INFO L85 PathProgramCache]: Analyzing trace with hash -927967701, now seen corresponding path program 1 times [2021-11-13 01:34:01,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:01,902 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [334149179] [2021-11-13 01:34:01,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:01,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:01,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:01,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:34:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:02,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:34:02,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:02,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:04,079 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:04,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [334149179] [2021-11-13 01:34:04,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [334149179] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:04,080 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:04,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 01:34:04,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399567429] [2021-11-13 01:34:04,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:04,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:34:04,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:04,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:34:04,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:34:04,084 INFO L87 Difference]: Start difference. First operand 86 states and 108 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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) [2021-11-13 01:34:04,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:04,448 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2021-11-13 01:34:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:34:04,449 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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 21 [2021-11-13 01:34:04,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:04,451 INFO L225 Difference]: With dead ends: 108 [2021-11-13 01:34:04,452 INFO L226 Difference]: Without dead ends: 100 [2021-11-13 01:34:04,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:34:04,454 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 13 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 294.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.16ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 329.07ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:04,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 624 Invalid, 110 Unknown, 0 Unchecked, 7.16ms Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 87 Unchecked, 329.07ms Time] [2021-11-13 01:34:04,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-13 01:34:04,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 91. [2021-11-13 01:34:04,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 87 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions. [2021-11-13 01:34:04,468 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 21 [2021-11-13 01:34:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:04,468 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 113 transitions. [2021-11-13 01:34:04,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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) [2021-11-13 01:34:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2021-11-13 01:34:04,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 01:34:04,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:04,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:04,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:04,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:04,689 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:04,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash -341161687, now seen corresponding path program 1 times [2021-11-13 01:34:04,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:04,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391077898] [2021-11-13 01:34:04,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:04,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:04,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:04,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:04,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:34:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:04,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-13 01:34:04,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:05,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-13 01:34:05,458 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 01:34:05,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2021-11-13 01:34:05,746 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-13 01:34:05,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2021-11-13 01:34:07,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 61 [2021-11-13 01:34:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:10,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:47,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:47,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:47,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391077898] [2021-11-13 01:34:47,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391077898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:47,564 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:47,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 27 [2021-11-13 01:34:47,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107077117] [2021-11-13 01:34:47,565 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:47,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 01:34:47,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:47,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 01:34:47,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=612, Unknown=1, NotChecked=0, Total=702 [2021-11-13 01:34:47,568 INFO L87 Difference]: Start difference. First operand 91 states and 113 transitions. Second operand has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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) [2021-11-13 01:34:48,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:48,363 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2021-11-13 01:34:48,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 01:34:48,364 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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 21 [2021-11-13 01:34:48,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:48,367 INFO L225 Difference]: With dead ends: 122 [2021-11-13 01:34:48,367 INFO L226 Difference]: Without dead ends: 114 [2021-11-13 01:34:48,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=95, Invalid=660, Unknown=1, NotChecked=0, Total=756 [2021-11-13 01:34:48,370 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 42 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.31ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 490 IncrementalHoareTripleChecker+Unchecked, 53.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:48,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 1792 Invalid, 502 Unknown, 0 Unchecked, 8.31ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 490 Unchecked, 53.06ms Time] [2021-11-13 01:34:48,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-13 01:34:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 86. [2021-11-13 01:34:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2560975609756098) internal successors, (103), 82 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:48,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 107 transitions. [2021-11-13 01:34:48,384 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 107 transitions. Word has length 21 [2021-11-13 01:34:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:48,385 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 107 transitions. [2021-11-13 01:34:48,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 27 states have internal predecessors, (41), 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) [2021-11-13 01:34:48,385 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 107 transitions. [2021-11-13 01:34:48,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 01:34:48,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:48,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:48,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:48,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:48,602 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:48,603 INFO L85 PathProgramCache]: Analyzing trace with hash -637128605, now seen corresponding path program 1 times [2021-11-13 01:34:48,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:48,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18733768] [2021-11-13 01:34:48,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:48,604 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:48,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:48,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:48,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:34:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:48,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:34:48,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:49,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:50,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:50,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18733768] [2021-11-13 01:34:50,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18733768] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:50,274 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:50,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 01:34:50,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066545969] [2021-11-13 01:34:50,275 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:50,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:34:50,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:50,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:34:50,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:34:50,277 INFO L87 Difference]: Start difference. First operand 86 states and 107 transitions. Second operand has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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) [2021-11-13 01:34:50,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:50,541 INFO L93 Difference]: Finished difference Result 163 states and 200 transitions. [2021-11-13 01:34:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:34:50,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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 24 [2021-11-13 01:34:50,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:50,545 INFO L225 Difference]: With dead ends: 163 [2021-11-13 01:34:50,545 INFO L226 Difference]: Without dead ends: 100 [2021-11-13 01:34:50,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:34:50,548 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 21 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 222.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 248.98ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:50,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 539 Invalid, 99 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 60 Unchecked, 248.98ms Time] [2021-11-13 01:34:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-13 01:34:50,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 92. [2021-11-13 01:34:50,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 88 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 113 transitions. [2021-11-13 01:34:50,561 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 113 transitions. Word has length 24 [2021-11-13 01:34:50,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:50,561 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 113 transitions. [2021-11-13 01:34:50,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 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) [2021-11-13 01:34:50,562 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions. [2021-11-13 01:34:50,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 01:34:50,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:50,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:50,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:50,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:50,788 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:50,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:50,789 INFO L85 PathProgramCache]: Analyzing trace with hash 383939749, now seen corresponding path program 1 times [2021-11-13 01:34:50,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:50,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208267426] [2021-11-13 01:34:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:50,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:50,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:50,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:50,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:34:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:50,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:34:50,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:51,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:51,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:51,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208267426] [2021-11-13 01:34:51,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208267426] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:51,955 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:51,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 01:34:51,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915685235] [2021-11-13 01:34:51,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:51,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 01:34:51,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:51,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 01:34:51,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:34:51,957 INFO L87 Difference]: Start difference. First operand 92 states and 113 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-11-13 01:34:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:52,265 INFO L93 Difference]: Finished difference Result 172 states and 207 transitions. [2021-11-13 01:34:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:34:52,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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 24 [2021-11-13 01:34:52,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:52,268 INFO L225 Difference]: With dead ends: 172 [2021-11-13 01:34:52,268 INFO L226 Difference]: Without dead ends: 109 [2021-11-13 01:34:52,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:34:52,270 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 37 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 240.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 259.71ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:52,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 646 Invalid, 93 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 60 Unchecked, 259.71ms Time] [2021-11-13 01:34:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-13 01:34:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 86. [2021-11-13 01:34:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 82 states have internal predecessors, (102), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:34:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions. [2021-11-13 01:34:52,281 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 24 [2021-11-13 01:34:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:52,282 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions. [2021-11-13 01:34:52,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 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) [2021-11-13 01:34:52,283 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions. [2021-11-13 01:34:52,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:34:52,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:52,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:52,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:52,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:52,490 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:34:52,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:52,490 INFO L85 PathProgramCache]: Analyzing trace with hash 753179498, now seen corresponding path program 1 times [2021-11-13 01:34:52,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:52,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262748552] [2021-11-13 01:34:52,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:52,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:52,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:52,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:52,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:34:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:52,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 01:34:52,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:53,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 46 [2021-11-13 01:34:54,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-11-13 01:34:54,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:34:54,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:32,267 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_15| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_15|) (_ bv2139095040 32)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_14|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_15|)))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_14|)) |c_ULTIMATE.start___ieee754_hypotf_~y#1|)))) is different from false [2021-11-13 01:35:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:32,441 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:32,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262748552] [2021-11-13 01:35:32,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262748552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:32,442 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:32,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-13 01:35:32,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191859488] [2021-11-13 01:35:32,442 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:32,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-13 01:35:32,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-13 01:35:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=355, Unknown=16, NotChecked=38, Total=462 [2021-11-13 01:35:32,444 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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) [2021-11-13 01:35:36,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:36,446 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2021-11-13 01:35:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 01:35:36,447 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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 26 [2021-11-13 01:35:36,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:36,448 INFO L225 Difference]: With dead ends: 108 [2021-11-13 01:35:36,449 INFO L226 Difference]: Without dead ends: 99 [2021-11-13 01:35:36,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 41.7s TimeCoverageRelationStatistics Valid=63, Invalid=430, Unknown=17, NotChecked=42, Total=552 [2021-11-13 01:35:36,451 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 9 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 148 IncrementalHoareTripleChecker+Unchecked, 31.14ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:36,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1516 Invalid, 161 Unknown, 0 Unchecked, 3.11ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 148 Unchecked, 31.14ms Time] [2021-11-13 01:35:36,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-13 01:35:36,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 95. [2021-11-13 01:35:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2417582417582418) internal successors, (113), 91 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:35:36,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2021-11-13 01:35:36,461 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 26 [2021-11-13 01:35:36,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:36,462 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2021-11-13 01:35:36,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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) [2021-11-13 01:35:36,462 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2021-11-13 01:35:36,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:35:36,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:36,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:36,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:36,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:36,678 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:36,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:36,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1433237868, now seen corresponding path program 1 times [2021-11-13 01:35:36,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:36,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691496567] [2021-11-13 01:35:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:36,679 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:36,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:36,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:36,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:35:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:36,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:35:36,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:37,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:37,612 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:37,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691496567] [2021-11-13 01:35:37,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691496567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:37,613 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:37,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:35:37,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044564471] [2021-11-13 01:35:37,614 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:37,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:35:37,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:35:37,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:35:37,616 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 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) [2021-11-13 01:35:37,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:37,757 INFO L93 Difference]: Finished difference Result 113 states and 133 transitions. [2021-11-13 01:35:37,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:35:37,758 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 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 26 [2021-11-13 01:35:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:37,759 INFO L225 Difference]: With dead ends: 113 [2021-11-13 01:35:37,759 INFO L226 Difference]: Without dead ends: 102 [2021-11-13 01:35:37,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:35:37,761 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 27 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.30ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 90.68ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:37,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 468 Invalid, 53 Unknown, 0 Unchecked, 1.30ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 31 Unchecked, 90.68ms Time] [2021-11-13 01:35:37,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-13 01:35:37,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2021-11-13 01:35:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 89 states have internal predecessors, (109), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:35:37,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2021-11-13 01:35:37,770 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 26 [2021-11-13 01:35:37,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:37,770 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2021-11-13 01:35:37,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 8 states have internal predecessors, (43), 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) [2021-11-13 01:35:37,770 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2021-11-13 01:35:37,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:35:37,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:37,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:37,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:37,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:37,986 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:37,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1547643092, now seen corresponding path program 1 times [2021-11-13 01:35:37,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:37,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400394109] [2021-11-13 01:35:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:37,987 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:37,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:37,991 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:38,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:35:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:38,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:35:38,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:38,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:38,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:39,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:39,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400394109] [2021-11-13 01:35:39,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400394109] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:39,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:39,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 01:35:39,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874907230] [2021-11-13 01:35:39,656 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:39,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:35:39,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:35:39,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:35:39,658 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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) [2021-11-13 01:35:39,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:39,871 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2021-11-13 01:35:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:35:39,872 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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 26 [2021-11-13 01:35:39,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:39,874 INFO L225 Difference]: With dead ends: 129 [2021-11-13 01:35:39,874 INFO L226 Difference]: Without dead ends: 120 [2021-11-13 01:35:39,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:35:39,875 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 41 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.99ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 198.46ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:39,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 682 Invalid, 135 Unknown, 0 Unchecked, 3.99ms Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 84 Unchecked, 198.46ms Time] [2021-11-13 01:35:39,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-13 01:35:39,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 93. [2021-11-13 01:35:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.2134831460674158) internal successors, (108), 89 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:35:39,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 112 transitions. [2021-11-13 01:35:39,896 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 112 transitions. Word has length 26 [2021-11-13 01:35:39,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:39,896 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 112 transitions. [2021-11-13 01:35:39,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 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) [2021-11-13 01:35:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 112 transitions. [2021-11-13 01:35:39,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:35:39,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:39,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:39,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:40,100 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash -867584722, now seen corresponding path program 1 times [2021-11-13 01:35:40,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:40,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655351603] [2021-11-13 01:35:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:40,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:40,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:40,102 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:40,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:35:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:40,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 01:35:40,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:40,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-13 01:35:40,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 31 [2021-11-13 01:35:41,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:41,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:45,445 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_isinf_float_~ix~1#1_33| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) (_ bv2139095040 32)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |c_ULTIMATE.start___ieee754_hypotf_~hb~0#1|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|)))))) is different from false [2021-11-13 01:35:47,520 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_isinf_float_~ix~1#1_33| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_18| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) (_ bv2139095040 32)) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_33|)) (let ((.cse0 (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_18|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) (not (= |c_ULTIMATE.start___ieee754_hypotf_~y#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_18|)))))) is different from false [2021-11-13 01:35:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:47,686 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:47,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655351603] [2021-11-13 01:35:47,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655351603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:47,687 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:47,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-11-13 01:35:47,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805702103] [2021-11-13 01:35:47,687 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:47,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-13 01:35:47,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:47,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-13 01:35:47,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=413, Unknown=2, NotChecked=82, Total=552 [2021-11-13 01:35:47,690 INFO L87 Difference]: Start difference. First operand 93 states and 112 transitions. Second operand has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 24 states have internal predecessors, (50), 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) [2021-11-13 01:35:48,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:48,576 INFO L93 Difference]: Finished difference Result 112 states and 129 transitions. [2021-11-13 01:35:48,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 01:35:48,577 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 24 states have internal predecessors, (50), 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 26 [2021-11-13 01:35:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:48,578 INFO L225 Difference]: With dead ends: 112 [2021-11-13 01:35:48,579 INFO L226 Difference]: Without dead ends: 102 [2021-11-13 01:35:48,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=70, Invalid=536, Unknown=2, NotChecked=94, Total=702 [2021-11-13 01:35:48,580 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 25 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 178 IncrementalHoareTripleChecker+Unchecked, 7.36ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:48,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1537 Invalid, 180 Unknown, 0 Unchecked, 2.79ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 178 Unchecked, 7.36ms Time] [2021-11-13 01:35:48,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-13 01:35:48,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 93. [2021-11-13 01:35:48,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 89 states have (on average 1.202247191011236) internal successors, (107), 89 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:35:48,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2021-11-13 01:35:48,589 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 26 [2021-11-13 01:35:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:48,589 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2021-11-13 01:35:48,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 24 states have internal predecessors, (50), 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) [2021-11-13 01:35:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2021-11-13 01:35:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 01:35:48,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:48,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:48,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:48,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:48,809 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:48,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1260611732, now seen corresponding path program 1 times [2021-11-13 01:35:48,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:48,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211535336] [2021-11-13 01:35:48,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:48,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:48,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:48,810 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:48,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:35:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:48,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:35:48,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:49,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:49,902 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:49,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211535336] [2021-11-13 01:35:49,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [211535336] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:49,902 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:49,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 01:35:49,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7736862] [2021-11-13 01:35:49,903 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:49,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 01:35:49,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 01:35:49,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:35:49,904 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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) [2021-11-13 01:35:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:50,265 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2021-11-13 01:35:50,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:35:50,266 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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 26 [2021-11-13 01:35:50,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:50,267 INFO L225 Difference]: With dead ends: 160 [2021-11-13 01:35:50,268 INFO L226 Difference]: Without dead ends: 83 [2021-11-13 01:35:50,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:35:50,269 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 7 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 256.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 42 IncrementalHoareTripleChecker+Unchecked, 275.88ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:50,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 608 Invalid, 98 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 42 Unchecked, 275.88ms Time] [2021-11-13 01:35:50,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-13 01:35:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-11-13 01:35:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 79 states have (on average 1.2025316455696202) internal successors, (95), 79 states have internal predecessors, (95), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 01:35:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2021-11-13 01:35:50,276 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 26 [2021-11-13 01:35:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:50,276 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2021-11-13 01:35:50,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 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) [2021-11-13 01:35:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2021-11-13 01:35:50,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-13 01:35:50,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:50,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:50,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:50,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:50,495 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:35:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1214285036, now seen corresponding path program 1 times [2021-11-13 01:35:50,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:50,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308311028] [2021-11-13 01:35:50,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:50,496 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:50,497 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:50,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:35:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:50,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 01:35:50,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:51,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:35:52,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:52,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308311028] [2021-11-13 01:35:52,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308311028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:52,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:52,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-13 01:35:52,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079081442] [2021-11-13 01:35:52,163 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:52,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 01:35:52,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 01:35:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:35:52,164 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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) [2021-11-13 01:35:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:52,279 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2021-11-13 01:35:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:35:52,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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 29 [2021-11-13 01:35:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:52,281 INFO L225 Difference]: With dead ends: 83 [2021-11-13 01:35:52,281 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:35:52,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:35:52,282 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 21.11ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:52,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.21ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 22 Unchecked, 21.11ms Time] [2021-11-13 01:35:52,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:35:52,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:35:52,283 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) [2021-11-13 01:35:52,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:35:52,283 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-11-13 01:35:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:52,284 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:35:52,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 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) [2021-11-13 01:35:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:35:52,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:35:52,286 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-13 01:35:52,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:52,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:52,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-13 01:35:52,784 INFO L854 garLoopResultBuilder]: At program point L184(line 184) the Hoare annotation is: false [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L184-1(line 184) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L854 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: false [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 159 173) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,784 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 238) no Hoare annotation was computed. [2021-11-13 01:35:52,785 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 202 206) no Hoare annotation was computed. [2021-11-13 01:35:52,785 INFO L854 garLoopResultBuilder]: At program point L202-2(lines 202 206) the Hoare annotation is: false [2021-11-13 01:35:52,785 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-13 01:35:52,785 INFO L858 garLoopResultBuilder]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2021-11-13 01:35:52,785 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-11-13 01:35:52,785 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-13 01:35:52,785 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_hypotf_~y#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 01:35:52,786 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-13 01:35:52,786 INFO L858 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2021-11-13 01:35:52,786 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 187 191) no Hoare annotation was computed. [2021-11-13 01:35:52,786 INFO L854 garLoopResultBuilder]: At program point L187-2(lines 187 191) the Hoare annotation is: false [2021-11-13 01:35:52,786 INFO L858 garLoopResultBuilder]: For program point L187-3(lines 187 191) no Hoare annotation was computed. [2021-11-13 01:35:52,787 INFO L854 garLoopResultBuilder]: At program point L221(lines 213 222) the Hoare annotation is: (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) [2021-11-13 01:35:52,787 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 146) no Hoare annotation was computed. [2021-11-13 01:35:52,787 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 83 210) no Hoare annotation was computed. [2021-11-13 01:35:52,787 INFO L861 garLoopResultBuilder]: At program point L239(lines 224 240) the Hoare annotation is: true [2021-11-13 01:35:52,787 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,787 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 131) no Hoare annotation was computed. [2021-11-13 01:35:52,788 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-13 01:35:52,788 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 123 146) no Hoare annotation was computed. [2021-11-13 01:35:52,788 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2021-11-13 01:35:52,788 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 83 210) no Hoare annotation was computed. [2021-11-13 01:35:52,788 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-13 01:35:52,789 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2021-11-13 01:35:52,789 INFO L858 garLoopResultBuilder]: For program point L126-2(lines 124 131) no Hoare annotation was computed. [2021-11-13 01:35:52,789 INFO L854 garLoopResultBuilder]: At program point L93-2(lines 93 97) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_hypotf_~y#1|) (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30| (_ BitVec 32))) (= |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30|))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-13 01:35:52,789 INFO L858 garLoopResultBuilder]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2021-11-13 01:35:52,790 INFO L854 garLoopResultBuilder]: At program point L209(lines 83 210) the Hoare annotation is: (exists ((v_arrayElimCell_5 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= |ULTIMATE.start___ieee754_hypotf_#res#1| (let ((.cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_5))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (= (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))))) [2021-11-13 01:35:52,790 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 193 197) no Hoare annotation was computed. [2021-11-13 01:35:52,790 INFO L854 garLoopResultBuilder]: At program point L193-2(lines 193 197) the Hoare annotation is: false [2021-11-13 01:35:52,790 INFO L858 garLoopResultBuilder]: For program point L193-3(lines 193 197) no Hoare annotation was computed. [2021-11-13 01:35:52,790 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,790 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 200) no Hoare annotation was computed. [2021-11-13 01:35:52,791 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 83 210) no Hoare annotation was computed. [2021-11-13 01:35:52,791 INFO L858 garLoopResultBuilder]: For program point L128-1(lines 128 129) no Hoare annotation was computed. [2021-11-13 01:35:52,791 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 178 182) no Hoare annotation was computed. [2021-11-13 01:35:52,791 INFO L854 garLoopResultBuilder]: At program point L178-2(lines 178 182) the Hoare annotation is: false [2021-11-13 01:35:52,791 INFO L858 garLoopResultBuilder]: For program point L178-3(lines 178 182) no Hoare annotation was computed. [2021-11-13 01:35:52,791 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L854 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: false [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 174) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 83 210) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 83 210) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 173) no Hoare annotation was computed. [2021-11-13 01:35:52,792 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 108) no Hoare annotation was computed. [2021-11-13 01:35:52,793 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 219) no Hoare annotation was computed. [2021-11-13 01:35:52,793 INFO L854 garLoopResultBuilder]: At program point L215-2(lines 215 219) the Hoare annotation is: (exists ((v_arrayElimCell_5 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) v_arrayElimCell_5) ((_ extract 30 23) v_arrayElimCell_5) ((_ extract 22 0) v_arrayElimCell_5)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_isinf_float_~x#1| (let ((.cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_5))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) [2021-11-13 01:35:52,793 INFO L858 garLoopResultBuilder]: For program point L215-3(lines 215 219) no Hoare annotation was computed. [2021-11-13 01:35:52,793 INFO L854 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: false [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L199-1(line 199) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 173) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L861 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: true [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-13 01:35:52,794 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L861 garLoopResultBuilder]: At program point __ieee754_sqrtfENTRY(lines 16 81) the Hoare annotation is: true [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtfFINAL(lines 16 81) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point __ieee754_sqrtfEXIT(lines 16 81) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-11-13 01:35:52,795 INFO L861 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: true [2021-11-13 01:35:52,796 INFO L858 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-11-13 01:35:52,796 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-11-13 01:35:52,796 INFO L861 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: true [2021-11-13 01:35:52,796 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-11-13 01:35:52,796 INFO L858 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-11-13 01:35:52,796 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-13 01:35:52,799 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:52,800 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:35:52,810 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,811 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,813 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,815 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,815 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,817 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,821 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] [2021-11-13 01:35:52,821 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,821 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] [2021-11-13 01:35:52,822 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:35:52 BoogieIcfgContainer [2021-11-13 01:35:52,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:35:52,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:35:52,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:35:52,824 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:35:52,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:34:00" (3/4) ... [2021-11-13 01:35:52,827 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:35:52,834 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2021-11-13 01:35:52,848 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 01:35:52,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 01:35:52,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-13 01:35:52,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:35:52,871 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30 : bv32 :: ha == ~bvand32(2147483647bv32, v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-13 01:35:52,882 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:35:52,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:35:52,883 INFO L158 Benchmark]: Toolchain (without parser) took 114588.77ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 40.1MB in the beginning and 50.0MB in the end (delta: -9.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,884 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:35:52,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.83ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 25.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.54ms. Allocated memory is still 60.8MB. Free memory was 25.4MB in the beginning and 42.6MB in the end (delta: -17.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,885 INFO L158 Benchmark]: Boogie Preprocessor took 48.20ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 40.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,886 INFO L158 Benchmark]: RCFGBuilder took 2170.77ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 39.9MB in the beginning and 60.2MB in the end (delta: -20.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,886 INFO L158 Benchmark]: TraceAbstraction took 111821.71ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 53.3MB in the end (delta: 6.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,886 INFO L158 Benchmark]: Witness Printer took 59.34ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 50.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 01:35:52,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 60.8MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.83ms. Allocated memory is still 60.8MB. Free memory was 39.8MB in the beginning and 25.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.54ms. Allocated memory is still 60.8MB. Free memory was 25.4MB in the beginning and 42.6MB in the end (delta: -17.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.20ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 40.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2170.77ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 39.9MB in the beginning and 60.2MB in the end (delta: -20.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 111821.71ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 53.3MB in the end (delta: 6.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 59.34ms. Allocated memory is still 86.0MB. Free memory was 53.3MB in the beginning and 50.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 236]: 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 2 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 111.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 1515.46ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 8554 SdHoareTripleChecker+Invalid, 1356.60ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1202 IncrementalHoareTripleChecker+Unchecked, 7490 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 246 IncrementalHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1064 mSDtfsCounter, 246 mSolverCounterSat, 34.44ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 523 GetRequests, 380 SyntacticMatches, 7 SemanticMatches, 136 ConstructedPredicates, 3 IntricatePredicates, 7 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 82.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=6, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 117 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 65 PreInvPairs, 75 NumberOfFragments, 114 HoareAnnotationTreeSize, 65 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 284 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 99.3s InterpolantComputationTime, 265 NumberOfCodeBlocks, 265 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 508 ConstructedInterpolants, 234 QuantifiedInterpolants, 6750 SizeOfPredicates, 105 NumberOfNonLiveVariables, 1024 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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 1 specifications checked. All of them hold - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 215]: Loop Invariant [2021-11-13 01:35:52,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_5 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_arrayElimCell_5[31:31], v_arrayElimCell_5[30:23], v_arrayElimCell_5[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) && x == ~fp~LONGDOUBLE(~bvand32(2147483647bv32, v_arrayElimCell_5)[31:31], ~bvand32(2147483647bv32, v_arrayElimCell_5)[30:23], ~bvand32(2147483647bv32, v_arrayElimCell_5)[22:0])) - InvariantResult [Line: 87]: Loop Invariant [2021-11-13 01:35:52,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,906 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == y && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 83]: Loop Invariant [2021-11-13 01:35:52,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_5,QUANTIFIED] [2021-11-13 01:35:52,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-13 01:35:52,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_5 : bv32, currentRoundingMode : FloatRoundingMode :: \result == ~fp~LONGDOUBLE(~bvand32(2147483647bv32, v_arrayElimCell_5)[31:31], ~bvand32(2147483647bv32, v_arrayElimCell_5)[30:23], ~bvand32(2147483647bv32, v_arrayElimCell_5)[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_5[31:31], v_arrayElimCell_5[30:23], v_arrayElimCell_5[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant [2021-11-13 01:35:52,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] [2021-11-13 01:35:52,911 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-13 01:35:52,912 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30,QUANTIFIED] [2021-11-13 01:35:52,912 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == y && (\exists v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30 : bv32 :: ha == ~bvand32(2147483647bv32, v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_30))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-13 01:35:53,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5db9ee5c-08e6-40b5-b30c-ca673b195c67/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