./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS --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 49f2ec108c5a903d6fb66450b34a24ed5e1ae616285117448a3e267ae2f349bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:06:13,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:06:13,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:06:13,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:06:13,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:06:13,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:06:13,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:06:13,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:06:13,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:06:13,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:06:13,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:06:13,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:06:13,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:06:13,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:06:13,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:06:13,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:06:13,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:06:13,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:06:13,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:06:13,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:06:13,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:06:13,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:06:13,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:06:13,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:06:13,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:06:13,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:06:13,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:06:13,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:06:13,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:06:13,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:06:13,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:06:13,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:06:13,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:06:13,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:06:13,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:06:13,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:06:13,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:06:13,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:06:13,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:06:13,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:06:13,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:06:13,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:06:13,397 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:06:13,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:06:13,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:06:13,398 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:06:13,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:06:13,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:06:13,399 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:06:13,399 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:06:13,399 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:06:13,399 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:06:13,400 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:06:13,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:06:13,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:06:13,400 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:06:13,400 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:06:13,401 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:06:13,401 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:06:13,401 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:06:13,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:06:13,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:06:13,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:06:13,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:06:13,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:06:13,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:06:13,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:06:13,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:06:13,403 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:06:13,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:06:13,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:06:13,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:06:13,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:06:13,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:06:13,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:06:13,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:06:13,405 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:06:13,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:06:13,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:06:13,406 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:06:13,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:06:13,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:06:13,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:06:13,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49f2ec108c5a903d6fb66450b34a24ed5e1ae616285117448a3e267ae2f349bb [2022-11-19 08:06:13,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:06:13,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:06:13,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:06:13,708 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:06:13,709 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:06:13,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c [2022-11-19 08:06:13,784 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/data/79fab9a85/046dac280a844a85a1efedd1726c1fba/FLAG8f7d13d5a [2022-11-19 08:06:14,224 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:06:14,225 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c [2022-11-19 08:06:14,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/data/79fab9a85/046dac280a844a85a1efedd1726c1fba/FLAG8f7d13d5a [2022-11-19 08:06:14,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/data/79fab9a85/046dac280a844a85a1efedd1726c1fba [2022-11-19 08:06:14,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:06:14,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:06:14,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:06:14,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:06:14,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:06:14,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db20e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14, skipping insertion in model container [2022-11-19 08:06:14,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:06:14,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:06:14,462 WARN L234 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_58c77880-fbfc-454b-9b0a-d92215780dab/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c[525,538] [2022-11-19 08:06:14,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:06:14,501 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:06:14,515 WARN L234 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_58c77880-fbfc-454b-9b0a-d92215780dab/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound2.c[525,538] [2022-11-19 08:06:14,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:06:14,550 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:06:14,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14 WrapperNode [2022-11-19 08:06:14,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:06:14,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:06:14,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:06:14,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:06:14,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,589 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 39 [2022-11-19 08:06:14,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:06:14,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:06:14,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:06:14,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:06:14,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,620 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:06:14,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:06:14,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:06:14,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:06:14,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (1/1) ... [2022-11-19 08:06:14,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:06:14,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:06:14,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:06:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:06:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:06:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 08:06:14,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 08:06:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:06:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:06:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:06:14,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:06:14,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:06:14,790 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:06:14,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:06:14,951 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:06:14,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:06:14,995 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:06:14,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:14 BoogieIcfgContainer [2022-11-19 08:06:14,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:06:15,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:06:15,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:06:15,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:06:15,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:06:14" (1/3) ... [2022-11-19 08:06:15,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac94def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:15, skipping insertion in model container [2022-11-19 08:06:15,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:06:14" (2/3) ... [2022-11-19 08:06:15,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac94def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:06:15, skipping insertion in model container [2022-11-19 08:06:15,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:14" (3/3) ... [2022-11-19 08:06:15,023 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound2.c [2022-11-19 08:06:15,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:06:15,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:06:15,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:06:15,145 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40e57400, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:06:15,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:06:15,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 08:06:15,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 08:06:15,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:06:15,158 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:06:15,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:06:15,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:06:15,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1813919309, now seen corresponding path program 1 times [2022-11-19 08:06:15,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:06:15,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177342609] [2022-11-19 08:06:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:15,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:06:15,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:06:15,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737749118] [2022-11-19 08:06:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:06:15,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:06:15,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:06:15,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:06:15,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:06:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:06:15,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-19 08:06:15,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:06:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:06:15,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:06:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:06:15,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:06:15,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177342609] [2022-11-19 08:06:15,710 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:06:15,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737749118] [2022-11-19 08:06:15,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737749118] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-19 08:06:15,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:06:15,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-19 08:06:15,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743991201] [2022-11-19 08:06:15,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:06:15,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:06:15,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:06:15,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:06:15,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:06:15,750 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:06:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:06:16,083 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2022-11-19 08:06:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:06:16,085 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-19 08:06:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:06:16,091 INFO L225 Difference]: With dead ends: 29 [2022-11-19 08:06:16,091 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:06:16,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-19 08:06:16,097 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:06:16,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 32 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:06:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:06:16,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:06:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:06:16,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:06:16,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-19 08:06:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:06:16,123 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:06:16,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:06:16,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:06:16,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:06:16,126 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:06:16,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:06:16,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:06:16,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:06:16,372 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 44) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2022-11-19 08:06:16,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:06:16,373 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 35 44) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2022-11-19 08:06:16,374 INFO L902 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: true [2022-11-19 08:06:16,375 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-19 08:06:16,375 INFO L902 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2022-11-19 08:06:16,375 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-11-19 08:06:16,375 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2022-11-19 08:06:16,377 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 44) no Hoare annotation was computed. [2022-11-19 08:06:16,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:06:16,382 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1)) [2022-11-19 08:06:16,383 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 11 13) the Hoare annotation is: true [2022-11-19 08:06:16,383 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 11 13) no Hoare annotation was computed. [2022-11-19 08:06:16,384 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed. [2022-11-19 08:06:16,384 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed. [2022-11-19 08:06:16,385 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true [2022-11-19 08:06:16,386 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed. [2022-11-19 08:06:16,389 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2022-11-19 08:06:16,390 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2022-11-19 08:06:16,394 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:06:16,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:06:16,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:06:16 BoogieIcfgContainer [2022-11-19 08:06:16,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:06:16,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:06:16,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:06:16,425 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:06:16,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:06:14" (3/4) ... [2022-11-19 08:06:16,457 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:06:16,462 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-19 08:06:16,463 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-19 08:06:16,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-19 08:06:16,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-19 08:06:16,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:06:16,466 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:06:16,500 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:06:16,500 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:06:16,501 INFO L158 Benchmark]: Toolchain (without parser) took 2249.11ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 68.6MB in the beginning and 110.4MB in the end (delta: -41.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:06:16,501 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:06:16,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.42ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 86.0MB in the end (delta: -17.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:06:16,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.97ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:06:16,503 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 83.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:06:16,503 INFO L158 Benchmark]: RCFGBuilder took 375.02ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 71.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:06:16,504 INFO L158 Benchmark]: TraceAbstraction took 1409.46ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 70.9MB in the beginning and 109.9MB in the end (delta: -39.0MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-11-19 08:06:16,504 INFO L158 Benchmark]: Witness Printer took 75.89ms. Allocated memory is still 136.3MB. Free memory was 109.8MB in the beginning and 110.4MB in the end (delta: -591.0kB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-19 08:06:16,508 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.42ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 86.0MB in the end (delta: -17.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.97ms. Allocated memory is still 113.2MB. Free memory was 86.0MB in the beginning and 84.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 83.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.02ms. Allocated memory is still 113.2MB. Free memory was 83.5MB in the beginning and 71.9MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1409.46ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 70.9MB in the beginning and 109.9MB in the end (delta: -39.0MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. * Witness Printer took 75.89ms. Allocated memory is still 136.3MB. Free memory was 109.8MB in the beginning and 110.4MB in the end (delta: -591.0kB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 48 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 101 SizeOfPredicates, 2 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: y * z + x == x * z + 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: y * z + x == x * z + 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 08:06:16,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c77880-fbfc-454b-9b0a-d92215780dab/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE