./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI --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 a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe --- 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-5e519f3 [2022-11-03 04:03:36,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:03:36,808 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:03:36,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:03:36,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:03:36,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:03:36,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:03:36,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:03:36,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:03:36,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:03:36,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:03:36,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:03:36,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:03:36,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:03:36,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:03:36,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:03:36,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:03:36,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:03:36,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:03:36,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:03:36,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:03:36,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:03:36,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:03:36,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:03:36,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:03:36,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:03:36,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:03:36,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:03:36,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:03:36,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:03:36,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:03:36,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:03:36,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:03:36,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:03:36,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:03:36,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:03:36,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:03:36,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:03:36,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:03:36,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:03:36,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:03:36,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:03:36,954 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:03:36,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:03:36,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:03:36,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:03:36,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:03:36,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:03:36,956 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:03:36,956 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:03:36,956 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:03:36,956 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:03:36,957 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:03:36,957 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:03:36,957 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:03:36,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:03:36,958 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:03:36,958 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:03:36,958 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:03:36,958 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:03:36,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:03:36,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:03:36,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:03:36,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:03:36,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:03:36,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:03:36,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:03:36,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:03:36,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:03:36,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:03:36,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:03:36,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:03:36,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:03:36,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:03:36,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:36,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:03:36,963 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:03:36,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:03:36,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:03:36,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:03:36,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:03:36,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:03:36,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:03:36,965 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_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a053a782decb11d2f285c3ec51c61736c730fd1e4c1a5a335f84feb7be146afe [2022-11-03 04:03:37,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:03:37,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:03:37,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:03:37,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:03:37,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:03:37,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2022-11-03 04:03:37,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/data/29dcf209d/f831840ef8bc4084adb4fb25c3336e68/FLAGb9b2cd03c [2022-11-03 04:03:37,893 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:03:37,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2022-11-03 04:03:37,906 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/data/29dcf209d/f831840ef8bc4084adb4fb25c3336e68/FLAGb9b2cd03c [2022-11-03 04:03:38,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/data/29dcf209d/f831840ef8bc4084adb4fb25c3336e68 [2022-11-03 04:03:38,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:03:38,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:03:38,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:38,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:03:38,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:03:38,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8834e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38, skipping insertion in model container [2022-11-03 04:03:38,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:03:38,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:03:38,513 WARN L230 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_119599dd-f55f-42cb-bd69-50a660f9c520/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2022-11-03 04:03:38,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:38,532 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:03:38,551 WARN L230 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_119599dd-f55f-42cb-bd69-50a660f9c520/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2022-11-03 04:03:38,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:03:38,566 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:03:38,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38 WrapperNode [2022-11-03 04:03:38,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:03:38,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:38,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:03:38,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:03:38,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,612 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2022-11-03 04:03:38,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:03:38,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:03:38,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:03:38,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:03:38,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,630 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:03:38,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:03:38,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:03:38,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:03:38,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (1/1) ... [2022-11-03 04:03:38,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:03:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:38,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:03:38,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:03:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:03:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:03:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:03:38,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:03:38,772 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:03:38,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:03:38,996 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:03:39,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:03:39,015 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 04:03:39,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:39 BoogieIcfgContainer [2022-11-03 04:03:39,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:03:39,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:03:39,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:03:39,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:03:39,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:03:38" (1/3) ... [2022-11-03 04:03:39,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467c64bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:39, skipping insertion in model container [2022-11-03 04:03:39,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:03:38" (2/3) ... [2022-11-03 04:03:39,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@467c64bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:03:39, skipping insertion in model container [2022-11-03 04:03:39,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:39" (3/3) ... [2022-11-03 04:03:39,029 INFO L112 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2022-11-03 04:03:39,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:03:39,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:03:39,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:03:39,138 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;@5bdad754, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:03:39,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:03:39,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 13 states have internal predecessors, (22), 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) [2022-11-03 04:03:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 04:03:39,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:39,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:39,153 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:39,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:39,162 INFO L85 PathProgramCache]: Analyzing trace with hash 79507751, now seen corresponding path program 1 times [2022-11-03 04:03:39,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:39,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197619153] [2022-11-03 04:03:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:39,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:39,316 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:03:39,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549749827] [2022-11-03 04:03:39,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:39,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:39,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:39,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:39,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:03:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:39,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 04:03:39,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:03:39,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:03:39,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:39,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197619153] [2022-11-03 04:03:39,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:03:39,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549749827] [2022-11-03 04:03:39,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549749827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:03:39,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:03:39,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 04:03:39,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626043676] [2022-11-03 04:03:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:03:39,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:03:39,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:39,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:03:39,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:03:39,841 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 13 states have internal predecessors, (22), 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 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:40,064 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-11-03 04:03:40,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:03:40,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 04:03:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:40,074 INFO L225 Difference]: With dead ends: 32 [2022-11-03 04:03:40,074 INFO L226 Difference]: Without dead ends: 13 [2022-11-03 04:03:40,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-11-03 04:03:40,080 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:40,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 39 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:03:40,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-03 04:03:40,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-03 04:03:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2022-11-03 04:03:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-11-03 04:03:40,112 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-11-03 04:03:40,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:40,113 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-11-03 04:03:40,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:03:40,113 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-11-03 04:03:40,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 04:03:40,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:40,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:40,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:40,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:40,337 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1830289474, now seen corresponding path program 1 times [2022-11-03 04:03:40,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:40,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215500721] [2022-11-03 04:03:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:40,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:40,357 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:03:40,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257461789] [2022-11-03 04:03:40,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:40,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:40,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:40,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:03:40,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:03:40,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-03 04:03:40,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:03:40,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:03:41,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215500721] [2022-11-03 04:03:41,385 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:03:41,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257461789] [2022-11-03 04:03:41,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257461789] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:41,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [836723564] [2022-11-03 04:03:41,411 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-03 04:03:41,412 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:03:41,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:03:41,420 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:03:41,421 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:03:41,632 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:03:42,599 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '193#(and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (<= 15 |ULTIMATE.start_main_~main__sum~0#1|) (= (ite (= (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (* 2 |ULTIMATE.start_main_~main__sum~0#1|)) 1 0) |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 0) (<= |#NULL.offset| 0) (<= ~__return_main~0 0) (<= |ULTIMATE.start_main_~main__n~0#1| 1000) (<= 5 |ULTIMATE.start_main_~main__n~0#1|) (not (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (<= 0 ~__return_96~0) (<= 0 ~__return_main~0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (<= ~__return_96~0 0) (= |#NULL.base| 0))' at error location [2022-11-03 04:03:42,599 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:03:42,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:42,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2022-11-03 04:03:42,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676302150] [2022-11-03 04:03:42,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:03:42,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 04:03:42,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:42,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 04:03:42,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:03:42,603 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2022-11-03 04:03:42,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:42,816 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-03 04:03:42,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:03:42,817 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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 12 [2022-11-03 04:03:42,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:42,817 INFO L225 Difference]: With dead ends: 17 [2022-11-03 04:03:42,817 INFO L226 Difference]: Without dead ends: 14 [2022-11-03 04:03:42,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 8 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2022-11-03 04:03:42,819 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:42,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 4 Unchecked, 0.1s Time] [2022-11-03 04:03:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-03 04:03:42,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-03 04:03:42,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-11-03 04:03:42,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-11-03 04:03:42,824 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2022-11-03 04:03:42,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:42,824 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-11-03 04:03:42,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2022-11-03 04:03:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-11-03 04:03:42,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 04:03:42,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:03:42,825 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:03:42,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:03:43,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:43,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:03:43,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:03:43,026 INFO L85 PathProgramCache]: Analyzing trace with hash -904461305, now seen corresponding path program 2 times [2022-11-03 04:03:43,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:03:43,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617986728] [2022-11-03 04:03:43,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:03:43,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:03:43,040 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:03:43,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502941016] [2022-11-03 04:03:43,041 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:03:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:03:43,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:03:43,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:03:43,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:03:43,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:03:43,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 04:03:43,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:03:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:03:43,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:03:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:03:43,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:03:43,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617986728] [2022-11-03 04:03:43,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:03:43,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502941016] [2022-11-03 04:03:43,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502941016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:03:43,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1614197151] [2022-11-03 04:03:43,919 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-03 04:03:43,919 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:03:43,919 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:03:43,920 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:03:43,920 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:03:44,046 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:03:44,927 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '337#(and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (<= 15 |ULTIMATE.start_main_~main__sum~0#1|) (= (ite (= (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (* 2 |ULTIMATE.start_main_~main__sum~0#1|)) 1 0) |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 0) (= ~__return_96~0 0) (<= |ULTIMATE.start_main_~main__n~0#1| 1000) (<= 5 |ULTIMATE.start_main_~main__n~0#1|) (not (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0))' at error location [2022-11-03 04:03:44,928 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:03:44,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:03:44,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 13 [2022-11-03 04:03:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759720279] [2022-11-03 04:03:44,928 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:03:44,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 04:03:44,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:03:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 04:03:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-11-03 04:03:44,930 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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) [2022-11-03 04:03:45,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:03:45,342 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-03 04:03:45,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:03:45,343 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 04:03:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:03:45,343 INFO L225 Difference]: With dead ends: 15 [2022-11-03 04:03:45,343 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 04:03:45,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 9 SyntacticMatches, 7 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-03 04:03:45,345 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:03:45,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 3 Unchecked, 0.1s Time] [2022-11-03 04:03:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 04:03:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 04:03:45,347 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) [2022-11-03 04:03:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 04:03:45,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-03 04:03:45,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:03:45,348 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 04:03:45,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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) [2022-11-03 04:03:45,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 04:03:45,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 04:03:45,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 04:03:45,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 04:03:45,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:03:45,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 04:03:45,665 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 103) no Hoare annotation was computed. [2022-11-03 04:03:45,666 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 04:03:45,666 INFO L895 garLoopResultBuilder]: At program point L58(lines 50 79) the Hoare annotation is: (let ((.cse0 (* 2 |ULTIMATE.start_main_~main__sum~0#1|))) (and (or (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|) (= (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|)) .cse0)) (forall ((|ULTIMATE.start_main_~main__n~0#1| Int)) (or (= (+ (* 2 |ULTIMATE.start_main_~main__i~0#1|) .cse0) (+ |ULTIMATE.start_main_~main__n~0#1| (* |ULTIMATE.start_main_~main__n~0#1| |ULTIMATE.start_main_~main__n~0#1|))) (not (<= |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|)) (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__n~0#1|))))) [2022-11-03 04:03:45,666 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 104) no Hoare annotation was computed. [2022-11-03 04:03:45,666 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 105) no Hoare annotation was computed. [2022-11-03 04:03:45,666 INFO L902 garLoopResultBuilder]: At program point L102(lines 13 106) the Hoare annotation is: true [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 76) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point L49(lines 49 83) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 88) no Hoare annotation was computed. [2022-11-03 04:03:45,667 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 93) no Hoare annotation was computed. [2022-11-03 04:03:45,668 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 98) no Hoare annotation was computed. [2022-11-03 04:03:45,671 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-03 04:03:45,674 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:03:45,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,683 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,684 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,689 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,690 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:03:45 BoogieIcfgContainer [2022-11-03 04:03:45,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:03:45,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:03:45,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:03:45,692 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:03:45,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:03:39" (3/4) ... [2022-11-03 04:03:45,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 04:03:45,704 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-03 04:03:45,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 04:03:45,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 04:03:45,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 04:03:45,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:03:45,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:03:45,749 INFO L158 Benchmark]: Toolchain (without parser) took 7480.01ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 65.9MB in the beginning and 60.5MB in the end (delta: 5.4MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,750 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:03:45,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.91ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 75.4MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.17ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,751 INFO L158 Benchmark]: Boogie Preprocessor took 18.34ms. Allocated memory is still 98.6MB. Free memory was 73.8MB in the beginning and 72.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,751 INFO L158 Benchmark]: RCFGBuilder took 384.88ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 61.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,752 INFO L158 Benchmark]: TraceAbstraction took 6671.57ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 61.2MB in the beginning and 63.7MB in the end (delta: -2.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,752 INFO L158 Benchmark]: Witness Printer took 57.42ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 60.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 04:03:45,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 52.7MB in the end (delta: 29.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.91ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 75.4MB in the end (delta: -9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.17ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.34ms. Allocated memory is still 98.6MB. Free memory was 73.8MB in the beginning and 72.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.88ms. Allocated memory is still 98.6MB. Free memory was 72.6MB in the beginning and 61.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6671.57ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 61.2MB in the beginning and 63.7MB in the end (delta: -2.5MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 57.42ms. Allocated memory is still 125.8MB. Free memory was 63.7MB in the beginning and 60.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] * 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: 69]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 12 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 20 SyntacticMatches, 13 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 12 NumberOfFragments, 37 HoareAnnotationTreeSize, 2 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 83 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 13 QuantifiedInterpolants, 524 SizeOfPredicates, 14 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/8 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant [2022-11-03 04:03:45,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,779 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,780 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,781 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] [2022-11-03 04:03:45,782 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0#1,QUANTIFIED] Derived loop invariant: (main__i <= main__n || main__n + main__n * main__n == 2 * main__sum) && (forall ULTIMATE.start_main_~main__n~0#1 : int :: (2 * main__i + 2 * main__sum == ULTIMATE.start_main_~main__n~0#1 + ULTIMATE.start_main_~main__n~0#1 * ULTIMATE.start_main_~main__n~0#1 || !(main__i <= ULTIMATE.start_main_~main__n~0#1)) || main__i < ULTIMATE.start_main_~main__n~0#1) RESULT: Ultimate proved your program to be correct! [2022-11-03 04:03:45,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_119599dd-f55f-42cb-bd69-50a660f9c520/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE