./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH --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 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:51:33,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:51:33,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:51:33,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:51:33,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:51:33,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:51:33,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:51:33,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:51:33,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:51:33,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:51:33,511 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:51:33,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:51:33,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:51:33,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:51:33,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:51:33,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:51:33,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:51:33,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:51:33,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:51:33,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:51:33,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:51:33,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:51:33,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:51:33,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:51:33,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:51:33,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:51:33,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:51:33,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:51:33,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:51:33,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:51:33,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:51:33,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:51:33,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:51:33,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:51:33,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:51:33,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:51:33,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:51:33,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:51:33,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:51:33,551 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:51:33,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:51:33,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:51:33,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:51:33,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:51:33,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:51:33,579 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:51:33,579 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:51:33,579 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:51:33,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:51:33,580 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:51:33,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:51:33,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:51:33,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:51:33,581 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:51:33,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:51:33,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:51:33,581 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:51:33,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:51:33,583 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:51:33,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:51:33,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:51:33,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:51:33,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:51:33,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:51:33,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:51:33,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:51:33,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:51:33,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:51:33,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:51:33,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:51:33,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:51:33,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:51:33,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:51:33,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:51:33,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:51:33,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:51:33,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:51:33,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:51:33,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:51:33,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:51:33,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:51:33,589 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b [2021-11-03 03:51:33,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:51:33,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:51:33,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:51:33,885 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:51:33,886 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:51:33,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-11-03 03:51:33,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/4e99bf6ec/3405a23880434ed49fc2e29b0a0f28be/FLAG3a4cfaa35 [2021-11-03 03:51:34,407 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:51:34,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-11-03 03:51:34,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/4e99bf6ec/3405a23880434ed49fc2e29b0a0f28be/FLAG3a4cfaa35 [2021-11-03 03:51:34,803 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/4e99bf6ec/3405a23880434ed49fc2e29b0a0f28be [2021-11-03 03:51:34,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:51:34,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:51:34,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:51:34,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:51:34,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:51:34,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:34" (1/1) ... [2021-11-03 03:51:34,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b326ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:34, skipping insertion in model container [2021-11-03 03:51:34,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:34" (1/1) ... [2021-11-03 03:51:34,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:51:34,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:51:35,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-11-03 03:51:35,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:51:35,086 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:51:35,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-11-03 03:51:35,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:51:35,128 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:51:35,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35 WrapperNode [2021-11-03 03:51:35,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:51:35,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:51:35,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:51:35,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:51:35,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:51:35,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:51:35,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:51:35,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:51:35,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:51:35,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:51:35,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:51:35,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:51:35,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (1/1) ... [2021-11-03 03:51:35,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:51:35,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:51:35,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:51:35,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:51:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:51:35,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:51:35,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:51:35,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:51:35,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:51:35,645 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-11-03 03:51:35,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:35 BoogieIcfgContainer [2021-11-03 03:51:35,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:51:35,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:51:35,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:51:35,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:51:35,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:51:34" (1/3) ... [2021-11-03 03:51:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b5952b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:35, skipping insertion in model container [2021-11-03 03:51:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:35" (2/3) ... [2021-11-03 03:51:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b5952b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:35, skipping insertion in model container [2021-11-03 03:51:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:35" (3/3) ... [2021-11-03 03:51:35,657 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-11-03 03:51:35,662 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:51:35,662 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 03:51:35,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:51:35,735 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:51:35,735 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 03:51:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 03:51:35,767 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:35,768 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 03:51:35,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:51:35,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:35,775 INFO L85 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2021-11-03 03:51:35,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:51:35,785 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296872617] [2021-11-03 03:51:35,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:35,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:51:35,884 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 03:51:35,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154302287] [2021-11-03 03:51:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:35,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:51:35,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:51:35,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:51:35,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:51:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:51:35,998 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:51:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:51:36,039 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 03:51:36,041 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:51:36,042 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,044 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,045 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,045 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,046 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,046 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:51:36,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:51:36,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-03 03:51:36,265 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 03:51:36,268 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:51:36,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:51:36 BoogieIcfgContainer [2021-11-03 03:51:36,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:51:36,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:51:36,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:51:36,283 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:51:36,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:35" (3/4) ... [2021-11-03 03:51:36,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 03:51:36,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:51:36,288 INFO L168 Benchmark]: Toolchain (without parser) took 1479.50 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 59.0 MB in the beginning and 76.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:51:36,289 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 64.3 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:51:36,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.71 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 58.7 MB in the beginning and 108.6 MB in the end (delta: -49.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:51:36,290 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 107.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:51:36,291 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 105.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:51:36,292 INFO L168 Benchmark]: RCFGBuilder took 451.67 ms. Allocated memory is still 134.2 MB. Free memory was 105.8 MB in the beginning and 93.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:51:36,292 INFO L168 Benchmark]: TraceAbstraction took 631.78 ms. Allocated memory is still 134.2 MB. Free memory was 92.6 MB in the beginning and 77.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:51:36,293 INFO L168 Benchmark]: Witness Printer took 3.59 ms. Allocated memory is still 134.2 MB. Free memory was 77.1 MB in the beginning and 76.4 MB in the end (delta: 642.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:51:36,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 64.3 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.71 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 58.7 MB in the beginning and 108.6 MB in the end (delta: -49.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 134.2 MB. Free memory was 108.6 MB in the beginning and 107.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 105.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 451.67 ms. Allocated memory is still 134.2 MB. Free memory was 105.8 MB in the beginning and 93.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 631.78 ms. Allocated memory is still 134.2 MB. Free memory was 92.6 MB in the beginning and 77.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.59 ms. Allocated memory is still 134.2 MB. Free memory was 77.1 MB in the beginning and 76.4 MB in the end (delta: 642.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 34, overapproximation of someBinaryDOUBLEComparisonOperation at line 28. Possible FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 03:51:36,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH --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 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:51:38,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:51:38,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:51:38,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:51:38,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:51:38,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:51:38,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:51:38,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:51:38,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:51:38,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:51:38,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:51:38,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:51:38,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:51:38,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:51:38,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:51:38,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:51:38,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:51:38,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:51:38,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:51:38,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:51:38,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:51:38,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:51:38,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:51:38,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:51:38,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:51:38,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:51:38,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:51:38,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:51:38,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:51:38,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:51:38,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:51:38,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:51:38,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:51:38,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:51:38,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:51:38,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:51:38,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:51:38,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:51:38,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:51:38,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:51:38,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:51:38,947 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:51:38,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:51:38,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:51:38,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:51:38,991 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:51:38,991 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:51:38,992 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:51:38,992 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:51:38,992 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:51:38,992 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:51:38,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:51:38,995 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:51:38,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:51:38,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:51:38,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:51:38,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:51:38,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:51:38,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:51:38,996 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:51:38,996 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:51:38,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:51:38,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:51:38,997 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:51:38,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:51:38,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:51:38,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:51:38,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:51:38,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:51:38,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:51:38,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:51:38,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:51:38,999 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:51:38,999 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:51:38,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:51:39,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:51:39,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:51:39,000 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fec5b098aa2c60671d1780ba812b42b15ac9ae3aabb25670634981b4519504b [2021-11-03 03:51:39,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:51:39,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:51:39,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:51:39,408 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:51:39,409 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:51:39,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-11-03 03:51:39,487 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/06c03ee9a/6cb319f9cc644161914808e446d6f3c4/FLAG561ad8835 [2021-11-03 03:51:40,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:51:40,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2021-11-03 03:51:40,057 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/06c03ee9a/6cb319f9cc644161914808e446d6f3c4/FLAG561ad8835 [2021-11-03 03:51:40,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/data/06c03ee9a/6cb319f9cc644161914808e446d6f3c4 [2021-11-03 03:51:40,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:51:40,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:51:40,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:51:40,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:51:40,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:51:40,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fe4c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40, skipping insertion in model container [2021-11-03 03:51:40,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:51:40,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:51:40,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-11-03 03:51:40,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:51:40,610 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:51:40,639 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2021-11-03 03:51:40,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:51:40,688 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:51:40,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40 WrapperNode [2021-11-03 03:51:40,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:51:40,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:51:40,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:51:40,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:51:40,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:51:40,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:51:40,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:51:40,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:51:40,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:51:40,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:51:40,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:51:40,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:51:40,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (1/1) ... [2021-11-03 03:51:40,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:51:40,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:51:40,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:51:40,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:51:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:51:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:51:40,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:51:40,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:51:50,943 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:51:50,944 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-11-03 03:51:50,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:50 BoogieIcfgContainer [2021-11-03 03:51:50,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:51:50,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:51:50,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:51:50,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:51:50,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:51:40" (1/3) ... [2021-11-03 03:51:50,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1cba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:50, skipping insertion in model container [2021-11-03 03:51:50,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:51:40" (2/3) ... [2021-11-03 03:51:50,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f1cba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:51:50, skipping insertion in model container [2021-11-03 03:51:50,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:50" (3/3) ... [2021-11-03 03:51:50,956 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2021-11-03 03:51:50,962 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:51:50,963 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 03:51:51,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:51:51,020 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:51:51,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 03:51:51,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:51,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:51:51,040 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:51,041 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:51:51,044 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:51:51,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:51,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-11-03 03:51:51,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:51:51,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1212049111] [2021-11-03 03:51:51,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:51,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:51:51,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:51:51,088 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:51:51,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:51:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:51:51,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:51:51,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:51:51,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:51,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:51:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:51,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:51:51,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1212049111] [2021-11-03 03:51:51,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1212049111] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:51:51,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:51:51,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:51:51,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119030794] [2021-11-03 03:51:51,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:51:51,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:51:51,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:51:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:51:51,435 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:51,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:51:51,457 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-11-03 03:51:51,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:51:51,459 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 03:51:51,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:51:51,468 INFO L225 Difference]: With dead ends: 63 [2021-11-03 03:51:51,469 INFO L226 Difference]: Without dead ends: 29 [2021-11-03 03:51:51,472 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:51:51,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-03 03:51:51,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-03 03:51:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-03 03:51:51,512 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-11-03 03:51:51,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:51:51,514 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-11-03 03:51:51,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:51:51,514 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-03 03:51:51,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 03:51:51,515 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:51:51,515 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:51:51,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:51:51,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:51:51,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:51:51,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:51:51,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-11-03 03:51:51,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:51:51,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053228590] [2021-11-03 03:51:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:51:51,741 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:51:51,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:51:51,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:51:51,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:51:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:51:51,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 03:51:51,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:51:52,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:52,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:51:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:51:59,907 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:51:59,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053228590] [2021-11-03 03:51:59,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2053228590] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:51:59,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:51:59,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-03 03:51:59,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687903190] [2021-11-03 03:51:59,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 03:51:59,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:51:59,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 03:51:59,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-03 03:51:59,912 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:52:37,490 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-11-03 03:52:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 03:52:37,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 03:52:37,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:52:37,493 INFO L225 Difference]: With dead ends: 34 [2021-11-03 03:52:37,493 INFO L226 Difference]: Without dead ends: 32 [2021-11-03 03:52:37,494 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:52:37,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-03 03:52:37,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-11-03 03:52:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.24) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:37,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-11-03 03:52:37,502 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2021-11-03 03:52:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:52:37,503 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-11-03 03:52:37,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:52:37,504 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-11-03 03:52:37,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:52:37,504 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:52:37,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:52:37,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:52:37,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:52:37,706 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:52:37,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:52:37,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-11-03 03:52:37,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:52:37,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786663169] [2021-11-03 03:52:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:52:37,708 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:52:37,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:52:37,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:52:37,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:52:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:52:38,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 03:52:38,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:52:40,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:52:40,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:52:46,508 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from false [2021-11-03 03:52:48,548 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) is different from true [2021-11-03 03:53:16,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:16,736 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:53:16,736 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786663169] [2021-11-03 03:53:16,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786663169] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:16,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:16,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-03 03:53:16,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902548353] [2021-11-03 03:53:16,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:53:16,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:53:16,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:53:16,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=62, Unknown=2, NotChecked=16, Total=110 [2021-11-03 03:53:16,739 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:21,895 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (.cse1 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))))) (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) .cse0 .cse1 (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (or (not .cse1) (not .cse0))) (and .cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse1)) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse2 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-11-03 03:53:24,617 WARN L860 $PredicateComparison]: unable to prove that (and (= c_ULTIMATE.start_main_~r~0 (_ bv1 32)) (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv100 32))) (= c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~x~0) (= (_ bv1 32) (bvadd (bvmul (_ bv4 32) (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) (bvneg (bvmul (bvmul c_ULTIMATE.start_main_~r~0 (_ bv6 32)) c_ULTIMATE.start_main_~r~0)) ((_ fp.to_sbv 32) roundTowardZero (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv4 32)))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~x~0) (fp.mul c_currentRoundingMode .cse0 c_ULTIMATE.start_main_~a~0)))) (bvmul (_ bv3 32) c_ULTIMATE.start_main_~r~0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-03 03:54:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:05,808 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-11-03 03:54:05,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 03:54:05,809 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 03:54:05,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:05,810 INFO L225 Difference]: With dead ends: 36 [2021-11-03 03:54:05,810 INFO L226 Difference]: Without dead ends: 34 [2021-11-03 03:54:05,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=41, Invalid=77, Unknown=4, NotChecked=60, Total=182 [2021-11-03 03:54:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-03 03:54:05,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-11-03 03:54:05,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-11-03 03:54:05,819 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2021-11-03 03:54:05,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:05,819 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-11-03 03:54:05,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:05,820 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-11-03 03:54:05,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:54:05,820 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:05,820 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:05,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:54:06,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:54:06,036 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 03:54:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-11-03 03:54:06,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:06,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [314257004] [2021-11-03 03:54:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:06,038 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:06,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:06,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 03:54:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:54:08,345 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:55:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:55:59,433 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-03 03:55:59,434 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:55:59,435 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:59,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:59,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:59,642 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-03 03:55:59,648 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:55:59,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:55:59 BoogieIcfgContainer [2021-11-03 03:55:59,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:55:59,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:55:59,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:55:59,685 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:55:59,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:51:50" (3/4) ... [2021-11-03 03:55:59,688 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 03:55:59,763 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:55:59,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:55:59,768 INFO L168 Benchmark]: Toolchain (without parser) took 259358.85 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 46.8 MB in the beginning and 45.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,769 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 67.1 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:55:59,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 50.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:55:59,772 INFO L168 Benchmark]: Boogie Preprocessor took 34.93 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,774 INFO L168 Benchmark]: RCFGBuilder took 10174.98 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 35.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,776 INFO L168 Benchmark]: TraceAbstraction took 248735.81 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 35.0 MB in the beginning and 47.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,777 INFO L168 Benchmark]: Witness Printer took 81.43 ms. Allocated memory is still 96.5 MB. Free memory was 47.4 MB in the beginning and 45.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:59,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 67.1 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.29 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 50.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 67.1 MB. Free memory was 50.0 MB in the beginning and 48.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.93 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 46.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10174.98 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 35.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 248735.81 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 35.0 MB in the beginning and 47.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Witness Printer took 81.43 ms. Allocated memory is still 96.5 MB. Free memory was 47.4 MB in the beginning and 45.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int r; [L26] double a, x, s; [L27] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L29] x = a [L30] s = 3.25 [L31] r = 1 [L33] COND TRUE 1 [L17] COND FALSE !(!(cond)) [L17] COND FALSE !(!(cond)) [L17] COND TRUE !(cond) [L19] reach_error() - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 248.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 86.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 19 SDslu, 110 SDs, 0 SdLazy, 73 SolverSat, 10 SolverUnsat, 32 SolverUnknown, 0 SolverNotchecked, 79.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 33.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 46.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 327 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 03:55:59,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67600d6c-1e55-4a55-86a8-887937b0fda2/bin/utaipan-aC7eJsxGYH/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE