./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG --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 acf998c27a5d4b83a2feddb35e0896b9221e58140057280398a3180f484cbd82 ................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG --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 acf998c27a5d4b83a2feddb35e0896b9221e58140057280398a3180f484cbd82 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:07:15,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:07:15,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:07:15,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:07:15,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:07:15,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:07:15,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:07:15,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:07:15,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:07:15,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:07:15,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:07:15,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:07:15,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:07:15,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:07:15,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:07:15,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:07:15,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:07:15,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:07:15,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:07:15,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:07:15,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:07:15,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:07:15,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:07:15,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:07:15,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:07:15,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:07:15,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:07:15,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:07:15,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:07:15,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:07:15,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:07:15,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:07:15,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:07:15,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:07:15,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:07:16,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:07:16,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:07:16,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:07:16,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:07:16,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:07:16,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:07:16,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:07:16,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:07:16,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:07:16,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:07:16,052 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:07:16,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:07:16,052 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:07:16,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:07:16,053 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:07:16,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:07:16,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:07:16,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:07:16,055 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:07:16,055 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:07:16,055 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:07:16,055 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:07:16,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:07:16,056 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:07:16,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:07:16,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:07:16,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:07:16,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:07:16,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:07:16,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:07:16,058 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:07:16,058 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:07:16,059 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:07:16,059 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:07:16,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:07:16,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:07:16,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:07:16,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:07:16,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:07:16,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:07:16,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:07:16,063 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:07:16,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:07:16,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:07:16,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:07:16,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:07:16,064 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_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acf998c27a5d4b83a2feddb35e0896b9221e58140057280398a3180f484cbd82 [2021-10-29 05:07:16,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:07:16,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:07:16,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:07:16,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:07:16,414 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:07:16,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2021-10-29 05:07:16,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/db35a53f8/d9c750c496f94a0f8786c89ab46b3226/FLAGae60f329a [2021-10-29 05:07:16,980 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:07:16,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2021-10-29 05:07:16,988 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/db35a53f8/d9c750c496f94a0f8786c89ab46b3226/FLAGae60f329a [2021-10-29 05:07:17,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/db35a53f8/d9c750c496f94a0f8786c89ab46b3226 [2021-10-29 05:07:17,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:07:17,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:07:17,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:17,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:07:17,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:07:17,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35456e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17, skipping insertion in model container [2021-10-29 05:07:17,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:07:17,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:07:17,596 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_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2021-10-29 05:07:17,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:17,634 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:07:17,648 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_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2021-10-29 05:07:17,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:17,677 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:07:17,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17 WrapperNode [2021-10-29 05:07:17,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:17,679 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:17,679 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:07:17,680 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:07:17,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:17,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:07:17,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:07:17,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:07:17,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:07:17,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:07:17,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:07:17,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:07:17,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (1/1) ... [2021-10-29 05:07:17,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:07:17,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:07:17,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:07:17,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:07:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:07:17,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:07:17,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:07:17,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:07:18,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:07:18,149 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-29 05:07:18,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:18 BoogieIcfgContainer [2021-10-29 05:07:18,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:07:18,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:07:18,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:07:18,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:07:18,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:07:17" (1/3) ... [2021-10-29 05:07:18,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124576bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:18, skipping insertion in model container [2021-10-29 05:07:18,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:17" (2/3) ... [2021-10-29 05:07:18,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@124576bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:18, skipping insertion in model container [2021-10-29 05:07:18,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:18" (3/3) ... [2021-10-29 05:07:18,160 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound50.c [2021-10-29 05:07:18,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:07:18,165 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-29 05:07:18,226 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:07:18,232 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 [2021-10-29 05:07:18,233 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:07:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:18,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:07:18,280 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:18,281 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:07:18,282 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:07:18,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:18,287 INFO L85 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2021-10-29 05:07:18,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:07:18,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701584068] [2021-10-29 05:07:18,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:18,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:07:18,414 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:07:18,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1068481101] [2021-10-29 05:07:18,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:18,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:07:18,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:07:18,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:07:18,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:07:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:07:18,487 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:07:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:07:18,539 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:07:18,541 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:07:18,542 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,544 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,546 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:07:18,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:18,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-29 05:07:18,765 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-10-29 05:07:18,767 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:07:18,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:07:18 BoogieIcfgContainer [2021-10-29 05:07:18,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:07:18,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:07:18,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:07:18,792 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:07:18,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:18" (3/4) ... [2021-10-29 05:07:18,794 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:07:18,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:07:18,796 INFO L168 Benchmark]: Toolchain (without parser) took 1448.46 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 49.1 MB in the beginning and 75.5 MB in the end (delta: -26.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:18,797 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:18,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.11 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.9 MB in the beginning and 79.9 MB in the end (delta: -31.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:18,799 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.43 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:18,800 INFO L168 Benchmark]: Boogie Preprocessor took 58.85 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 77.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:18,801 INFO L168 Benchmark]: RCFGBuilder took 363.69 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 64.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:18,802 INFO L168 Benchmark]: TraceAbstraction took 637.18 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 76.2 MB in the end (delta: -12.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:18,803 INFO L168 Benchmark]: Witness Printer took 3.37 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 75.5 MB in the end (delta: 426.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:18,806 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 86.0 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.11 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.9 MB in the beginning and 79.9 MB in the end (delta: -31.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.43 ms. Allocated memory is still 104.9 MB. Free memory was 79.9 MB in the beginning and 78.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.85 ms. Allocated memory is still 104.9 MB. Free memory was 78.3 MB in the beginning and 77.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 363.69 ms. Allocated memory is still 104.9 MB. Free memory was 76.9 MB in the beginning and 64.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 637.18 ms. Allocated memory is still 104.9 MB. Free memory was 64.0 MB in the beginning and 76.2 MB in the end (delta: -12.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.37 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 75.5 MB in the end (delta: 426.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:07:18,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:07:21,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:07:21,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:07:21,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:07:21,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:07:21,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:07:21,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:07:21,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:07:21,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:07:21,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:07:21,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:07:21,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:07:21,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:07:21,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:07:21,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:07:21,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:07:21,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:07:21,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:07:21,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:07:21,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:07:21,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:07:21,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:07:21,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:07:21,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:07:21,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:07:21,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:07:21,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:07:21,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:07:21,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:07:21,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:07:21,389 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:07:21,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:07:21,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:07:21,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:07:21,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:07:21,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:07:21,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:07:21,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:07:21,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:07:21,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:07:21,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:07:21,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:07:21,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:07:21,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:07:21,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:07:21,424 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:07:21,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:07:21,425 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:07:21,425 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:07:21,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:07:21,425 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:07:21,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:07:21,426 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:07:21,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:07:21,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:07:21,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:07:21,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:07:21,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:07:21,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:07:21,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:07:21,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:07:21,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:07:21,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:07:21,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:07:21,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:07:21,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:07:21,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:07:21,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:07:21,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:07:21,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:07:21,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:07:21,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:07:21,431 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:07:21,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:07:21,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:07:21,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:07:21,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:07:21,432 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_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acf998c27a5d4b83a2feddb35e0896b9221e58140057280398a3180f484cbd82 [2021-10-29 05:07:21,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:07:21,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:07:21,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:07:21,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:07:21,841 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:07:21,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2021-10-29 05:07:21,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/fff228318/b28efaa4536e4c6194f070a9d50920d3/FLAG70904c9b1 [2021-10-29 05:07:22,463 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:07:22,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c [2021-10-29 05:07:22,474 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/fff228318/b28efaa4536e4c6194f070a9d50920d3/FLAG70904c9b1 [2021-10-29 05:07:22,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/data/fff228318/b28efaa4536e4c6194f070a9d50920d3 [2021-10-29 05:07:22,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:07:22,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:07:22,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:22,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:07:22,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:07:22,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:22" (1/1) ... [2021-10-29 05:07:22,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@286b0236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:22, skipping insertion in model container [2021-10-29 05:07:22,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:07:22" (1/1) ... [2021-10-29 05:07:22,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:07:22,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:07:23,019 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_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2021-10-29 05:07:23,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:23,070 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:07:23,096 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_35c1a31c-af60-4614-bf12-bca2589cc68c/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound50.c[709,722] [2021-10-29 05:07:23,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:07:23,136 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:07:23,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23 WrapperNode [2021-10-29 05:07:23,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:07:23,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:23,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:07:23,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:07:23,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:07:23,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:07:23,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:07:23,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:07:23,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:07:23,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:07:23,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:07:23,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:07:23,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (1/1) ... [2021-10-29 05:07:23,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:07:23,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:07:23,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:07:23,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:07:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:07:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:07:23,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:07:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:07:34,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:07:34,535 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-29 05:07:34,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:34 BoogieIcfgContainer [2021-10-29 05:07:34,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:07:34,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:07:34,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:07:34,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:07:34,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:07:22" (1/3) ... [2021-10-29 05:07:34,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dd60d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:34, skipping insertion in model container [2021-10-29 05:07:34,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:07:23" (2/3) ... [2021-10-29 05:07:34,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47dd60d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:07:34, skipping insertion in model container [2021-10-29 05:07:34,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:34" (3/3) ... [2021-10-29 05:07:34,546 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound50.c [2021-10-29 05:07:34,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:07:34,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-29 05:07:34,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:07:34,609 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 [2021-10-29 05:07:34,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:07:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 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) [2021-10-29 05:07:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:07:34,629 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:34,630 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:34,631 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:07:34,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-29 05:07:34,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:34,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136976077] [2021-10-29 05:07:34,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:34,651 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:34,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:34,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:34,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:07:34,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:34,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:07:34,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:34,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:34,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:34,944 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:34,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136976077] [2021-10-29 05:07:34,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136976077] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:34,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:34,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:07:34,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946972891] [2021-10-29 05:07:34,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:07:34,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:34,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:07:34,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:07:34,968 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:34,985 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-29 05:07:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:07:34,987 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-29 05:07:34,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:34,995 INFO L225 Difference]: With dead ends: 63 [2021-10-29 05:07:34,995 INFO L226 Difference]: Without dead ends: 29 [2021-10-29 05:07:34,997 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:07:35,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-29 05:07:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-29 05:07:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:35,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-29 05:07:35,029 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-29 05:07:35,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:35,030 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-29 05:07:35,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-29 05:07:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:07:35,031 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:35,031 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:35,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:35,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:35,247 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:07:35,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-29 05:07:35,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:35,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905373939] [2021-10-29 05:07:35,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:35,249 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:35,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:35,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:35,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:07:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:35,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:07:35,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:35,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:35,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:43,197 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:43,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905373939] [2021-10-29 05:07:43,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905373939] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:43,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:43,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:07:43,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664077442] [2021-10-29 05:07:43,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:07:43,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:43,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:07:43,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:07:43,201 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-29 05:08:15,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:08:15,910 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-10-29 05:08:15,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:08:15,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 7 [2021-10-29 05:08:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:08:15,912 INFO L225 Difference]: With dead ends: 34 [2021-10-29 05:08:15,913 INFO L226 Difference]: Without dead ends: 32 [2021-10-29 05:08:15,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:08:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-29 05:08:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-29 05:08:15,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:08:15,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-29 05:08:15,922 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-10-29 05:08:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:08:15,923 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-29 05:08:15,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2021-10-29 05:08:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-29 05:08:15,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:08:15,924 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:08:15,925 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:08:15,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:08:16,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:08:16,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:08:16,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:08:16,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-29 05:08:16,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:08:16,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402511645] [2021-10-29 05:08:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:08:16,134 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:08:16,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:08:16,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:08:16,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:08:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:08:16,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:08:16,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:08:18,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:08:18,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:08:24,998 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-10-29 05:08:27,033 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-10-29 05:08:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:08:56,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:08:56,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402511645] [2021-10-29 05:08:56,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402511645] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:08:56,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:08:56,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-29 05:08:56,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728487217] [2021-10-29 05:08:56,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:08:56,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:08:56,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:08:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-10-29 05:08:56,344 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:00,957 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv50 32))))) (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse0 (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (or (and .cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse1) (and (or (not .cse1) (not .cse0)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven) .cse1)) is different from true [2021-10-29 05:09:03,713 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv50 32)))) is different from true [2021-10-29 05:09:50,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:09:50,508 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-10-29 05:09:50,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:09:50,508 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 9 [2021-10-29 05:09:50,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:09:50,510 INFO L225 Difference]: With dead ends: 36 [2021-10-29 05:09:50,510 INFO L226 Difference]: Without dead ends: 34 [2021-10-29 05:09:50,510 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=41, Invalid=77, Unknown=4, NotChecked=60, Total=182 [2021-10-29 05:09:50,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-29 05:09:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-29 05:09:50,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-29 05:09:50,520 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-10-29 05:09:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:09:50,520 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-10-29 05:09:50,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:09:50,521 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-29 05:09:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:09:50,522 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:09:50,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:09:50,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:09:50,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:09:50,744 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-29 05:09:50,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:09:50,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-29 05:09:50,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:09:50,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266519043] [2021-10-29 05:09:50,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:09:50,746 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:09:50,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:09:50,748 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:09:50,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:09:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:09:52,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:10:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:10:33,430 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:10:33,430 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:10:33,432 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:10:33,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:10:33,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:10:33,639 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-29 05:10:33,642 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:10:33,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:10:33 BoogieIcfgContainer [2021-10-29 05:10:33,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:10:33,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:10:33,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:10:33,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:10:33,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:07:34" (3/4) ... [2021-10-29 05:10:33,678 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:10:33,758 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:10:33,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:10:33,761 INFO L168 Benchmark]: Toolchain (without parser) took 190930.87 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.8 MB in the beginning and 32.8 MB in the end (delta: 28.5 kB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,761 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:10:33,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.57 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 36.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.97 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 35.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,764 INFO L168 Benchmark]: Boogie Preprocessor took 32.26 ms. Allocated memory is still 54.5 MB. Free memory was 35.2 MB in the beginning and 33.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,768 INFO L168 Benchmark]: RCFGBuilder took 11323.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 47.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,770 INFO L168 Benchmark]: TraceAbstraction took 179133.47 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 34.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,772 INFO L168 Benchmark]: Witness Printer took 85.83 ms. Allocated memory is still 67.1 MB. Free memory was 34.9 MB in the beginning and 32.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:10:33,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.57 ms. Allocated memory is still 54.5 MB. Free memory was 32.6 MB in the beginning and 36.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.97 ms. Allocated memory is still 54.5 MB. Free memory was 36.9 MB in the beginning and 35.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.26 ms. Allocated memory is still 54.5 MB. Free memory was 35.2 MB in the beginning and 33.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11323.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.7 MB in the beginning and 47.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 179133.47 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 34.9 MB in the end (delta: 12.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 85.83 ms. Allocated memory is still 67.1 MB. Free memory was 34.9 MB in the beginning and 32.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 179.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 86.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 72 SolverSat, 10 SolverUnsat, 33 SolverUnknown, 0 SolverNotchecked, 79.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 47.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 05:10:33,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35c1a31c-af60-4614-bf12-bca2589cc68c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...