./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 ......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 ............................................................................................................................................................................................................................................................................................................................................................................................ 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 11:12:41,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:12:41,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:12:41,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:12:41,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:12:41,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:12:41,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:12:41,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:12:41,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:12:41,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:12:41,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:12:41,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:12:41,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:12:41,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:12:41,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:12:41,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:12:41,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:12:41,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:12:41,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:12:41,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:12:41,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:12:41,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:12:41,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:12:41,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:12:41,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:12:41,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:12:41,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:12:41,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:12:41,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:12:41,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:12:41,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:12:41,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:12:41,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:12:41,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:12:41,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:12:41,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:12:41,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:12:41,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:12:41,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:12:41,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:12:41,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:12:41,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 11:12:41,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:12:41,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:12:41,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:12:41,225 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:12:41,226 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:12:41,226 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:12:41,226 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 11:12:41,226 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:12:41,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:12:41,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 11:12:41,227 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 11:12:41,227 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:12:41,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 11:12:41,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 11:12:41,227 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 11:12:41,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:12:41,228 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:12:41,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 11:12:41,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:12:41,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:12:41,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:12:41,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:12:41,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:12:41,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:12:41,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:12:41,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:12:41,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:12:41,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:12:41,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:12:41,231 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 11:12:41,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 11:12:41,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:12:41,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:12:41,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:12:41,232 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_a26db6bf-7238-49cc-90d0-459c876342cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 [2020-12-09 11:12:41,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:12:41,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:12:41,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:12:41,420 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:12:41,421 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:12:41,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2020-12-09 11:12:41,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/ce23e971c/5f0cdb9c3e604462ae2d1b69c23a2cdd/FLAG6a05e3695 [2020-12-09 11:12:41,816 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:12:41,816 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2020-12-09 11:12:41,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/ce23e971c/5f0cdb9c3e604462ae2d1b69c23a2cdd/FLAG6a05e3695 [2020-12-09 11:12:41,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/ce23e971c/5f0cdb9c3e604462ae2d1b69c23a2cdd [2020-12-09 11:12:41,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:12:41,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:12:41,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:41,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:12:41,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:12:41,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:41" (1/1) ... [2020-12-09 11:12:41,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432cc0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:41, skipping insertion in model container [2020-12-09 11:12:41,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:41" (1/1) ... [2020-12-09 11:12:41,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:12:41,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:12:41,975 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_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2020-12-09 11:12:41,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:41,999 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:12:42,007 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_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2020-12-09 11:12:42,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:42,025 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:12:42,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42 WrapperNode [2020-12-09 11:12:42,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:42,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:42,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:12:42,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:12:42,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:42,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:12:42,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:12:42,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:12:42,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... [2020-12-09 11:12:42,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:12:42,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:12:42,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:12:42,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:12:42,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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 11:12:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 11:12:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:12:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:12:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:12:42,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:12:42,321 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-09 11:12:42,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:42 BoogieIcfgContainer [2020-12-09 11:12:42,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:12:42,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:12:42,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:12:42,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:12:42,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:12:41" (1/3) ... [2020-12-09 11:12:42,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7136b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:42, skipping insertion in model container [2020-12-09 11:12:42,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:42" (2/3) ... [2020-12-09 11:12:42,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7136b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:42, skipping insertion in model container [2020-12-09 11:12:42,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:42" (3/3) ... [2020-12-09 11:12:42,328 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2020-12-09 11:12:42,338 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:12:42,341 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 11:12:42,348 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 11:12:42,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:12:42,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:12:42,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:12:42,366 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:12:42,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:12:42,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:12:42,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:12:42,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:12:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-12-09 11:12:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 11:12:42,380 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:42,381 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 11:12:42,381 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:42,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:42,385 INFO L82 PathProgramCache]: Analyzing trace with hash 3980175, now seen corresponding path program 1 times [2020-12-09 11:12:42,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 11:12:42,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296577549] [2020-12-09 11:12:42,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 11:12:42,464 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 11:12:42,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068457845] [2020-12-09 11:12:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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 11:12:42,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:12:42,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:12:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:12:42,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:12:42,545 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 11:12:42,545 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 11:12:42,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 11:12:42,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:12:42 BoogieIcfgContainer [2020-12-09 11:12:42,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:12:42,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:12:42,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:12:42,764 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:12:42,764 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:42" (3/4) ... [2020-12-09 11:12:42,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 11:12:42,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:12:42,770 INFO L168 Benchmark]: Toolchain (without parser) took 932.66 ms. Allocated memory is still 142.6 MB. Free memory was 106.2 MB in the beginning and 75.2 MB in the end (delta: 31.0 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:42,770 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 142.6 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:42,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.42 ms. Allocated memory is still 142.6 MB. Free memory was 106.1 MB in the beginning and 116.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:42,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.00 ms. Allocated memory is still 142.6 MB. Free memory was 116.1 MB in the beginning and 114.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:42,773 INFO L168 Benchmark]: Boogie Preprocessor took 17.38 ms. Allocated memory is still 142.6 MB. Free memory was 114.6 MB in the beginning and 113.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:42,774 INFO L168 Benchmark]: RCFGBuilder took 251.89 ms. Allocated memory is still 142.6 MB. Free memory was 113.5 MB in the beginning and 94.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:42,775 INFO L168 Benchmark]: TraceAbstraction took 439.34 ms. Allocated memory is still 142.6 MB. Free memory was 93.6 MB in the beginning and 75.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 11:12:42,775 INFO L168 Benchmark]: Witness Printer took 4.27 ms. Allocated memory is still 142.6 MB. Free memory was 75.7 MB in the beginning and 75.2 MB in the end (delta: 520.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:12:42,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 142.6 MB. Free memory is still 122.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 188.42 ms. Allocated memory is still 142.6 MB. Free memory was 106.1 MB in the beginning and 116.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.00 ms. Allocated memory is still 142.6 MB. Free memory was 116.1 MB in the beginning and 114.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.38 ms. Allocated memory is still 142.6 MB. Free memory was 114.6 MB in the beginning and 113.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 251.89 ms. Allocated memory is still 142.6 MB. Free memory was 113.5 MB in the beginning and 94.1 MB in the end (delta: 19.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 439.34 ms. Allocated memory is still 142.6 MB. Free memory was 93.6 MB in the beginning and 75.7 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.27 ms. Allocated memory is still 142.6 MB. Free memory was 75.7 MB in the beginning and 75.2 MB in the end (delta: 520.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 11:12:44,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 11:12:44,353 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 11:12:44,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 11:12:44,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 11:12:44,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 11:12:44,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 11:12:44,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 11:12:44,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 11:12:44,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 11:12:44,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 11:12:44,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 11:12:44,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 11:12:44,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 11:12:44,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 11:12:44,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 11:12:44,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 11:12:44,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 11:12:44,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 11:12:44,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 11:12:44,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 11:12:44,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 11:12:44,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 11:12:44,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 11:12:44,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 11:12:44,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 11:12:44,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 11:12:44,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 11:12:44,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 11:12:44,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 11:12:44,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 11:12:44,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 11:12:44,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 11:12:44,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 11:12:44,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 11:12:44,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 11:12:44,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 11:12:44,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 11:12:44,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 11:12:44,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 11:12:44,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 11:12:44,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 11:12:44,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 11:12:44,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 11:12:44,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 11:12:44,428 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 11:12:44,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 11:12:44,428 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 11:12:44,428 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 11:12:44,428 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 11:12:44,428 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 11:12:44,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 11:12:44,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 11:12:44,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 11:12:44,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 11:12:44,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 11:12:44,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 11:12:44,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 11:12:44,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 11:12:44,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 11:12:44,431 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 11:12:44,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 11:12:44,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 11:12:44,432 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 11:12:44,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 11:12:44,432 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc253eb5ba4e6ae55ed3b220f4e6968aeb67577 [2020-12-09 11:12:44,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 11:12:44,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 11:12:44,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 11:12:44,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 11:12:44,676 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 11:12:44,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2020-12-09 11:12:44,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/8dd760a67/93eecaaba40045d19a09345f0fef0b58/FLAG7b2bad674 [2020-12-09 11:12:45,091 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 11:12:45,092 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c [2020-12-09 11:12:45,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/8dd760a67/93eecaaba40045d19a09345f0fef0b58/FLAG7b2bad674 [2020-12-09 11:12:45,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/data/8dd760a67/93eecaaba40045d19a09345f0fef0b58 [2020-12-09 11:12:45,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 11:12:45,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 11:12:45,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:45,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 11:12:45,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 11:12:45,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c024aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45, skipping insertion in model container [2020-12-09 11:12:45,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 11:12:45,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 11:12:45,222 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_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2020-12-09 11:12:45,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:45,248 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 11:12:45,257 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_a26db6bf-7238-49cc-90d0-459c876342cb/sv-benchmarks/c/nla-digbench-scaling/freire2_valuebound100.c[709,722] [2020-12-09 11:12:45,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 11:12:45,278 INFO L208 MainTranslator]: Completed translation [2020-12-09 11:12:45,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45 WrapperNode [2020-12-09 11:12:45,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 11:12:45,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:45,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 11:12:45,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 11:12:45,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 11:12:45,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 11:12:45,324 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 11:12:45,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 11:12:45,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... [2020-12-09 11:12:45,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 11:12:45,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 11:12:45,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 11:12:45,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 11:12:45,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/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 11:12:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 11:12:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 11:12:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 11:12:45,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 11:12:59,352 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 11:12:59,352 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-09 11:12:59,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:59 BoogieIcfgContainer [2020-12-09 11:12:59,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 11:12:59,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 11:12:59,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 11:12:59,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 11:12:59,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:12:45" (1/3) ... [2020-12-09 11:12:59,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d0619b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:59, skipping insertion in model container [2020-12-09 11:12:59,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:12:45" (2/3) ... [2020-12-09 11:12:59,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d0619b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:12:59, skipping insertion in model container [2020-12-09 11:12:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:59" (3/3) ... [2020-12-09 11:12:59,365 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_valuebound100.c [2020-12-09 11:12:59,376 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 11:12:59,379 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 11:12:59,387 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 11:12:59,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 11:12:59,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 11:12:59,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 11:12:59,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 11:12:59,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 11:12:59,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 11:12:59,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 11:12:59,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 11:12:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-09 11:12:59,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 11:12:59,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:59,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:59,418 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-09 11:12:59,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:59,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [114157183] [2020-12-09 11:12:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 11:12:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:59,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 11:12:59,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:12:59,578 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 11:12:59,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:12:59,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [114157183] [2020-12-09 11:12:59,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:12:59,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 11:12:59,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423518356] [2020-12-09 11:12:59,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 11:12:59,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:12:59,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 11:12:59,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:12:59,593 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-09 11:12:59,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:12:59,606 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2020-12-09 11:12:59,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 11:12:59,607 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 11:12:59,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:12:59,613 INFO L225 Difference]: With dead ends: 63 [2020-12-09 11:12:59,613 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 11:12:59,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 11:12:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 11:12:59,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 11:12:59,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 11:12:59,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2020-12-09 11:12:59,639 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2020-12-09 11:12:59,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:12:59,639 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2020-12-09 11:12:59,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 11:12:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2020-12-09 11:12:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 11:12:59,639 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:12:59,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:12:59,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 11:12:59,840 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:12:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:12:59,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-09 11:12:59,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:12:59,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653870851] [2020-12-09 11:12:59,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 11:12:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:12:59,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 11:12:59,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:13:00,124 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 11:13:00,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:13:00,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653870851] [2020-12-09 11:13:00,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:13:00,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 11:13:00,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697108393] [2020-12-09 11:13:00,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 11:13:00,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:13:00,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 11:13:00,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 11:13:00,129 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 5 states. [2020-12-09 11:13:29,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:13:29,337 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-12-09 11:13:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 11:13:29,338 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 11:13:29,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:13:29,339 INFO L225 Difference]: With dead ends: 34 [2020-12-09 11:13:29,339 INFO L226 Difference]: Without dead ends: 32 [2020-12-09 11:13:29,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 11:13:29,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-09 11:13:29,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2020-12-09 11:13:29,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 11:13:29,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-12-09 11:13:29,345 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 7 [2020-12-09 11:13:29,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:13:29,345 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-12-09 11:13:29,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 11:13:29,345 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-12-09 11:13:29,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 11:13:29,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:13:29,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:13:29,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 11:13:29,548 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:13:29,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:13:29,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2020-12-09 11:13:29,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:13:29,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556500307] [2020-12-09 11:13:29,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 11:13:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 11:13:30,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 11:13:30,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 11:13:30,320 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 11:13:30,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 11:13:35,249 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 11:13:35,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 11:13:35,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556500307] [2020-12-09 11:13:35,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 11:13:35,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 11:13:35,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889441077] [2020-12-09 11:13:35,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 11:13:35,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 11:13:35,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 11:13:35,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 11:13:35,252 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2020-12-09 11:13:35,902 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 14 [2020-12-09 11:13:36,166 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2020-12-09 11:13:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 11:13:57,493 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2020-12-09 11:13:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 11:13:57,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-09 11:13:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 11:13:57,495 INFO L225 Difference]: With dead ends: 36 [2020-12-09 11:13:57,495 INFO L226 Difference]: Without dead ends: 34 [2020-12-09 11:13:57,496 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 11:13:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-09 11:13:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2020-12-09 11:13:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 11:13:57,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2020-12-09 11:13:57,501 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 9 [2020-12-09 11:13:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 11:13:57,501 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2020-12-09 11:13:57,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 11:13:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2020-12-09 11:13:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 11:13:57,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 11:13:57,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 11:13:57,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 11:13:57,704 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 11:13:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 11:13:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2020-12-09 11:13:57,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 11:13:57,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958506094] [2020-12-09 11:13:57,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 11:14:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:14:22,675 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:14:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 11:14:24,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 11:14:24,511 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-12-09 11:14:24,512 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 11:14:24,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 11:14:24,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:14:24 BoogieIcfgContainer [2020-12-09 11:14:24,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 11:14:24,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 11:14:24,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 11:14:24,768 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 11:14:24,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:12:59" (3/4) ... [2020-12-09 11:14:24,770 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 11:14:24,800 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a26db6bf-7238-49cc-90d0-459c876342cb/bin/utaipan/witness.graphml [2020-12-09 11:14:24,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 11:14:24,801 INFO L168 Benchmark]: Toolchain (without parser) took 99690.76 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 46.6 MB in the beginning and 36.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,801 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 94.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:14:24,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.28 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 35.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.97 ms. Allocated memory is still 62.9 MB. Free memory was 35.1 MB in the beginning and 46.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,803 INFO L168 Benchmark]: Boogie Preprocessor took 28.37 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 11:14:24,803 INFO L168 Benchmark]: RCFGBuilder took 14000.94 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 29.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,804 INFO L168 Benchmark]: TraceAbstraction took 85412.93 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.2 MB in the beginning and 38.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,805 INFO L168 Benchmark]: Witness Printer took 31.71 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 36.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 11:14:24,808 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 62.9 MB. Free memory was 45.7 MB in the beginning and 45.6 MB in the end (delta: 94.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 168.28 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 35.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.97 ms. Allocated memory is still 62.9 MB. Free memory was 35.1 MB in the beginning and 46.9 MB in the end (delta: -11.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.37 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 14000.94 ms. Allocated memory is still 62.9 MB. Free memory was 45.4 MB in the beginning and 29.5 MB in the end (delta: 15.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 85412.93 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 29.2 MB in the beginning and 38.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 31.71 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 36.6 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: - 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() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 85.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 51.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 14 SDslu, 86 SDs, 0 SdLazy, 60 SolverSat, 0 SolverUnsat, 20 SolverUnknown, 0 SolverNotchecked, 50.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, 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, 25.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1150 SizeOfPredicates, 11 NumberOfNonLiveVariables, 102 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...