./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan --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 8cc49ab9fd7daac186098b70e57b3712f40ea7f3 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 12:13:22,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 12:13:22,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 12:13:22,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 12:13:22,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 12:13:22,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 12:13:22,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 12:13:22,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 12:13:22,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 12:13:22,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 12:13:22,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 12:13:22,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 12:13:22,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 12:13:22,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 12:13:22,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 12:13:22,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 12:13:22,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 12:13:22,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 12:13:22,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 12:13:22,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 12:13:22,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 12:13:22,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 12:13:22,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 12:13:22,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 12:13:22,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 12:13:22,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 12:13:22,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 12:13:22,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 12:13:22,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 12:13:22,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 12:13:22,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 12:13:22,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 12:13:22,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 12:13:22,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 12:13:22,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 12:13:22,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 12:13:22,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 12:13:22,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 12:13:22,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 12:13:22,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 12:13:22,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 12:13:22,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 12:13:22,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 12:13:22,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 12:13:22,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 12:13:22,205 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 12:13:22,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 12:13:22,206 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 12:13:22,207 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 12:13:22,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 12:13:22,207 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 12:13:22,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 12:13:22,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 12:13:22,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:13:22,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 12:13:22,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 12:13:22,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 12:13:22,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 12:13:22,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 12:13:22,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 12:13:22,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 12:13:22,210 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-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cc49ab9fd7daac186098b70e57b3712f40ea7f3 [2020-12-09 12:13:22,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 12:13:22,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 12:13:22,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 12:13:22,392 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 12:13:22,393 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 12:13:22,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c [2020-12-09 12:13:22,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/data/54144ac08/bca452b4d9cf429485d3dbc10b429d6f/FLAGb4a3a8105 [2020-12-09 12:13:22,802 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 12:13:22,803 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c [2020-12-09 12:13:22,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/data/54144ac08/bca452b4d9cf429485d3dbc10b429d6f/FLAGb4a3a8105 [2020-12-09 12:13:22,817 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/data/54144ac08/bca452b4d9cf429485d3dbc10b429d6f [2020-12-09 12:13:22,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 12:13:22,820 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 12:13:22,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 12:13:22,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 12:13:22,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 12:13:22,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:22,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f198880 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22, skipping insertion in model container [2020-12-09 12:13:22,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:22,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 12:13:22,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 12:13:22,945 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c[555,568] [2020-12-09 12:13:22,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:13:22,966 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 12:13:22,975 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound10.c[555,568] [2020-12-09 12:13:22,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 12:13:22,990 INFO L208 MainTranslator]: Completed translation [2020-12-09 12:13:22,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22 WrapperNode [2020-12-09 12:13:22,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 12:13:22,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 12:13:22,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 12:13:22,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 12:13:22,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 12:13:23,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 12:13:23,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 12:13:23,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 12:13:23,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... [2020-12-09 12:13:23,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 12:13:23,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 12:13:23,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 12:13:23,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 12:13:23,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 12:13:23,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 12:13:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 12:13:23,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 12:13:23,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 12:13:23,276 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 12:13:23,276 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-09 12:13:23,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:23 BoogieIcfgContainer [2020-12-09 12:13:23,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 12:13:23,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 12:13:23,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 12:13:23,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 12:13:23,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:13:22" (1/3) ... [2020-12-09 12:13:23,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fca7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:23, skipping insertion in model container [2020-12-09 12:13:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:13:22" (2/3) ... [2020-12-09 12:13:23,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fca7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:13:23, skipping insertion in model container [2020-12-09 12:13:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:23" (3/3) ... [2020-12-09 12:13:23,285 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound10.c [2020-12-09 12:13:23,295 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 12:13:23,297 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 12:13:23,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 12:13:23,321 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 12:13:23,321 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 12:13:23,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 12:13:23,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 12:13:23,322 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 12:13:23,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 12:13:23,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 12:13:23,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 12:13:23,331 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-09 12:13:23,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 12:13:23,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:23,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 12:13:23,335 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:23,339 INFO L82 PathProgramCache]: Analyzing trace with hash 71331668, now seen corresponding path program 1 times [2020-12-09 12:13:23,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:23,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066077018] [2020-12-09 12:13:23,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:23,424 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 12:13:23,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050368124] [2020-12-09 12:13:23,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 12:13:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:13:23,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 12:13:23,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 12:13:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:23,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 12:13:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:23,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066077018] [2020-12-09 12:13:23,588 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 12:13:23,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050368124] [2020-12-09 12:13:23,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:13:23,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 12:13:23,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516578653] [2020-12-09 12:13:23,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 12:13:23,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:13:23,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 12:13:23,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 12:13:23,604 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2020-12-09 12:13:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:13:23,694 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2020-12-09 12:13:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 12:13:23,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-09 12:13:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:13:23,702 INFO L225 Difference]: With dead ends: 29 [2020-12-09 12:13:23,703 INFO L226 Difference]: Without dead ends: 15 [2020-12-09 12:13:23,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-09 12:13:23,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-09 12:13:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 9. [2020-12-09 12:13:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 12:13:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-12-09 12:13:23,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 5 [2020-12-09 12:13:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:13:23,735 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-12-09 12:13:23,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 12:13:23,735 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-12-09 12:13:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 12:13:23,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:23,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 12:13:23,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 12:13:23,937 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:23,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:23,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2083729231, now seen corresponding path program 1 times [2020-12-09 12:13:23,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:23,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377538667] [2020-12-09 12:13:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:23,980 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 12:13:23,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [436292373] [2020-12-09 12:13:23,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 12:13:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 12:13:24,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 12:13:24,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 12:13:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:24,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 12:13:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 12:13:24,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377538667] [2020-12-09 12:13:24,130 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 12:13:24,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436292373] [2020-12-09 12:13:24,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 12:13:24,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 12:13:24,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104194312] [2020-12-09 12:13:24,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 12:13:24,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 12:13:24,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 12:13:24,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 12:13:24,133 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2020-12-09 12:13:24,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 12:13:24,159 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2020-12-09 12:13:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 12:13:24,159 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-09 12:13:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 12:13:24,160 INFO L225 Difference]: With dead ends: 23 [2020-12-09 12:13:24,160 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 12:13:24,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-09 12:13:24,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 12:13:24,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-12-09 12:13:24,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-09 12:13:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2020-12-09 12:13:24,166 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2020-12-09 12:13:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 12:13:24,167 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2020-12-09 12:13:24,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 12:13:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-09 12:13:24,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 12:13:24,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 12:13:24,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 12:13:24,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 12:13:24,369 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 12:13:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 12:13:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash -962203318, now seen corresponding path program 1 times [2020-12-09 12:13:24,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 12:13:24,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342287804] [2020-12-09 12:13:24,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 12:13:24,409 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 12:13:24,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811707644] [2020-12-09 12:13:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 12:13:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:13:24,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:13:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 12:13:24,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 12:13:24,508 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 12:13:24,509 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 12:13:24,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 12:13:24,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:13:24 BoogieIcfgContainer [2020-12-09 12:13:24,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 12:13:24,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 12:13:24,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 12:13:24,761 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 12:13:24,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:13:23" (3/4) ... [2020-12-09 12:13:24,763 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 12:13:24,791 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3dd00e5b-016c-4f37-8102-dfacbd6cda0c/bin/utaipan/witness.graphml [2020-12-09 12:13:24,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 12:13:24,792 INFO L168 Benchmark]: Toolchain (without parser) took 1971.03 ms. Allocated memory is still 136.3 MB. Free memory was 107.6 MB in the beginning and 69.3 MB in the end (delta: 38.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:24,792 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:13:24,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.84 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 97.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:24,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.04 ms. Allocated memory is still 136.3 MB. Free memory was 97.7 MB in the beginning and 96.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:13:24,793 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 136.3 MB. Free memory was 96.3 MB in the beginning and 95.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:24,794 INFO L168 Benchmark]: RCFGBuilder took 243.14 ms. Allocated memory is still 136.3 MB. Free memory was 95.2 MB in the beginning and 80.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:24,794 INFO L168 Benchmark]: TraceAbstraction took 1480.09 ms. Allocated memory is still 136.3 MB. Free memory was 80.5 MB in the beginning and 71.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-09 12:13:24,794 INFO L168 Benchmark]: Witness Printer took 30.25 ms. Allocated memory is still 136.3 MB. Free memory was 70.8 MB in the beginning and 69.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 12:13:24,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 71.3 MB. Free memory was 37.7 MB in the beginning and 37.7 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 169.84 ms. Allocated memory is still 136.3 MB. Free memory was 107.3 MB in the beginning and 97.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.04 ms. Allocated memory is still 136.3 MB. Free memory was 97.7 MB in the beginning and 96.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 136.3 MB. Free memory was 96.3 MB in the beginning and 95.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 243.14 ms. Allocated memory is still 136.3 MB. Free memory was 95.2 MB in the beginning and 80.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1480.09 ms. Allocated memory is still 136.3 MB. Free memory was 80.5 MB in the beginning and 71.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Witness Printer took 30.25 ms. Allocated memory is still 136.3 MB. Free memory was 70.8 MB in the beginning and 69.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<10 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L18] reach_error() VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 26 SDslu, 35 SDs, 0 SdLazy, 28 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 4 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! Received shutdown request...