./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.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_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 72573711c7ecb055b02fc78b1cf1ae2c3d756217 ........................................................................................................................................................................................................................................................................................................................................... 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 72573711c7ecb055b02fc78b1cf1ae2c3d756217 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:56:41,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:56:41,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:56:41,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:56:41,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:56:41,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:56:41,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:56:41,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:56:41,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:56:41,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:56:41,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:56:41,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:56:41,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:56:41,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:56:41,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:56:41,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:56:41,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:56:41,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:56:41,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:56:41,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:56:41,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:56:41,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:56:41,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:56:41,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:56:41,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:56:41,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:56:41,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:56:41,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:56:41,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:56:41,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:56:41,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:56:41,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:56:41,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:56:41,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:56:41,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:56:41,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:56:41,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:56:41,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:56:41,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:56:41,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:56:41,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:56:41,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:56:41,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:56:41,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:56:41,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:56:41,998 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:56:41,998 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:56:41,998 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:56:41,998 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:56:41,999 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:56:41,999 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:56:41,999 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:56:41,999 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:56:41,999 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:56:41,999 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:56:42,000 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:56:42,000 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:56:42,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:56:42,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:56:42,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:56:42,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:56:42,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:56:42,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:56:42,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:56:42,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:56:42,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:56:42,005 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72573711c7ecb055b02fc78b1cf1ae2c3d756217 [2020-12-09 18:56:42,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:56:42,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:56:42,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:56:42,219 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:56:42,219 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:56:42,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c [2020-12-09 18:56:42,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/e0d9f64f0/605e5911e4454c2a8cd9754863a8a8eb/FLAGc4fae1e1b [2020-12-09 18:56:42,618 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:56:42,618 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c [2020-12-09 18:56:42,623 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/e0d9f64f0/605e5911e4454c2a8cd9754863a8a8eb/FLAGc4fae1e1b [2020-12-09 18:56:43,039 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/e0d9f64f0/605e5911e4454c2a8cd9754863a8a8eb [2020-12-09 18:56:43,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:56:43,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:56:43,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:56:43,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:56:43,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:56:43,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543b9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43, skipping insertion in model container [2020-12-09 18:56:43,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:56:43,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:56:43,164 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c[458,471] [2020-12-09 18:56:43,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:56:43,179 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:56:43,187 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c[458,471] [2020-12-09 18:56:43,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:56:43,200 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:56:43,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43 WrapperNode [2020-12-09 18:56:43,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:56:43,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:56:43,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:56:43,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:56:43,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:56:43,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:56:43,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:56:43,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:56:43,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... [2020-12-09 18:56:43,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:56:43,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:56:43,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:56:43,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:56:43,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:56:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:56:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:56:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:56:43,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:56:43,469 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-09 18:56:43,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:56:43 BoogieIcfgContainer [2020-12-09 18:56:43,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:56:43,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:56:43,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:56:43,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:56:43,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:56:43" (1/3) ... [2020-12-09 18:56:43,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1ea648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:56:43, skipping insertion in model container [2020-12-09 18:56:43,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:43" (2/3) ... [2020-12-09 18:56:43,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1ea648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:56:43, skipping insertion in model container [2020-12-09 18:56:43,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:56:43" (3/3) ... [2020-12-09 18:56:43,480 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_unwindbound20.c [2020-12-09 18:56:43,494 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:56:43,497 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 18:56:43,508 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 18:56:43,530 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:56:43,530 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:56:43,530 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:56:43,530 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:56:43,530 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:56:43,530 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:56:43,530 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:56:43,531 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:56:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-12-09 18:56:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 18:56:43,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:56:43,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 18:56:43,548 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:56:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:56:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash 71331668, now seen corresponding path program 1 times [2020-12-09 18:56:43,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:56:43,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043216995] [2020-12-09 18:56:43,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:56:43,648 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:56:43,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750638461] [2020-12-09 18:56:43,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:43,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 18:56:43,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:43,746 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 18:56:43,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:56:43,781 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 18:56:43,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043216995] [2020-12-09 18:56:43,781 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:56:43,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750638461] [2020-12-09 18:56:43,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:56:43,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 18:56:43,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582081932] [2020-12-09 18:56:43,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:56:43,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:56:43,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:56:43,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:56:43,802 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 6 states. [2020-12-09 18:56:45,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:56:45,900 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2020-12-09 18:56:45,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:56:45,902 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-09 18:56:45,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:56:45,907 INFO L225 Difference]: With dead ends: 45 [2020-12-09 18:56:45,907 INFO L226 Difference]: Without dead ends: 22 [2020-12-09 18:56:45,909 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 18:56:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-09 18:56:45,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2020-12-09 18:56:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 18:56:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-12-09 18:56:45,932 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2020-12-09 18:56:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:56:45,932 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-12-09 18:56:45,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:56:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-12-09 18:56:45,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 18:56:45,933 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:56:45,933 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2020-12-09 18:56:46,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 18:56:46,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:56:46,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:56:46,138 INFO L82 PathProgramCache]: Analyzing trace with hash 478489772, now seen corresponding path program 1 times [2020-12-09 18:56:46,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:56:46,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432302686] [2020-12-09 18:56:46,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:56:46,176 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:56:46,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1207606812] [2020-12-09 18:56:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:46,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-09 18:56:46,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:56:46,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:56:46,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432302686] [2020-12-09 18:56:46,364 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:56:46,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207606812] [2020-12-09 18:56:46,364 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-09 18:56:46,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1001846912] [2020-12-09 18:56:46,383 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 18:56:46,383 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 18:56:46,386 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 18:56:46,390 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 18:56:46,390 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 18:56:46,740 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 18:56:47,158 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-09 18:56:47,160 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:56:47,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:56:47,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-09 18:56:47,160 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2020-12-09 18:56:47,161 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:56:47,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:56:47,410 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-09 18:56:47,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:56:47 BoogieIcfgContainer [2020-12-09 18:56:47,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:56:47,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:56:47,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:56:47,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:56:47,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:56:43" (3/4) ... [2020-12-09 18:56:47,421 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 18:56:47,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:56:47,425 INFO L168 Benchmark]: Toolchain (without parser) took 4379.74 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 77.1 MB in the end (delta: -23.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:56:47,427 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:56:47,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.89 ms. Allocated memory is still 94.4 MB. Free memory was 53.7 MB in the beginning and 68.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:56:47,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.39 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 66.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:56:47,433 INFO L168 Benchmark]: Boogie Preprocessor took 14.10 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 65.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:56:47,436 INFO L168 Benchmark]: RCFGBuilder took 233.35 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.0 MB in the end (delta: 380.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:56:47,440 INFO L168 Benchmark]: TraceAbstraction took 3938.14 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.6 MB in the beginning and 77.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:56:47,441 INFO L168 Benchmark]: Witness Printer took 9.59 ms. Allocated memory is still 113.2 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:56:47,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory is still 69.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 156.89 ms. Allocated memory is still 94.4 MB. Free memory was 53.7 MB in the beginning and 68.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.39 ms. Allocated memory is still 94.4 MB. Free memory was 68.1 MB in the beginning and 66.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.10 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 65.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 233.35 ms. Allocated memory is still 94.4 MB. Free memory was 65.4 MB in the beginning and 65.0 MB in the end (delta: 380.1 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3938.14 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 64.6 MB in the beginning and 77.1 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 9.59 ms. Allocated memory is still 113.2 MB. Free memory is still 77.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L17] int counter = 0; [L19] short k; [L20] long long y, x, c; [L21] k = __VERIFIER_nondet_short() [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] EXPR counter++ [L27] COND TRUE counter++<20 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] EXPR counter++ [L27] COND TRUE counter++<20 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] EXPR counter++ [L27] COND TRUE counter++<20 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.8s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 41 SDslu, 28 SDs, 0 SdLazy, 21 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 3 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 18:56:49,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:56:49,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:56:49,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:56:49,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:56:49,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:56:49,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:56:49,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:56:49,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:56:49,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:56:49,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:56:49,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:56:49,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:56:49,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:56:49,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:56:49,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:56:49,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:56:49,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:56:49,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:56:49,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:56:49,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:56:49,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:56:49,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:56:49,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:56:49,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:56:49,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:56:49,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:56:49,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:56:49,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:56:49,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:56:49,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:56:49,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:56:49,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:56:49,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:56:49,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:56:49,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:56:49,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:56:49,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:56:49,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:56:49,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:56:49,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:56:49,200 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:56:49,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:56:49,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:56:49,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:56:49,218 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:56:49,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:56:49,219 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:56:49,219 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:56:49,219 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:56:49,219 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:56:49,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:56:49,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:56:49,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:56:49,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:56:49,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:56:49,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:56:49,222 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72573711c7ecb055b02fc78b1cf1ae2c3d756217 [2020-12-09 18:56:49,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:56:49,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:56:49,478 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:56:49,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:56:49,479 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:56:49,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c [2020-12-09 18:56:49,521 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/fbddd4841/1cd80de0aed444c69394105d404ab263/FLAG50aab86d3 [2020-12-09 18:56:49,921 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:56:49,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c [2020-12-09 18:56:49,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/fbddd4841/1cd80de0aed444c69394105d404ab263/FLAG50aab86d3 [2020-12-09 18:56:49,936 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/data/fbddd4841/1cd80de0aed444c69394105d404ab263 [2020-12-09 18:56:49,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:56:49,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:56:49,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:56:49,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:56:49,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:56:49,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:56:49" (1/1) ... [2020-12-09 18:56:49,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241337eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:49, skipping insertion in model container [2020-12-09 18:56:49,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:56:49" (1/1) ... [2020-12-09 18:56:49,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:56:49,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:56:50,052 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c[458,471] [2020-12-09 18:56:50,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:56:50,076 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:56:50,094 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_6dc2e337-7b87-4139-89c3-8dca90b34e26/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_unwindbound20.c[458,471] [2020-12-09 18:56:50,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:56:50,115 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:56:50,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50 WrapperNode [2020-12-09 18:56:50,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:56:50,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:56:50,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:56:50,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:56:50,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:56:50,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:56:50,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:56:50,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:56:50,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... [2020-12-09 18:56:50,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:56:50,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:56:50,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:56:50,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:56:50,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:56:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:56:50,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:56:50,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:56:50,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:56:50,686 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-09 18:56:50,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:56:50 BoogieIcfgContainer [2020-12-09 18:56:50,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:56:50,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:56:50,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:56:50,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:56:50,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:56:49" (1/3) ... [2020-12-09 18:56:50,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf4fd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:56:50, skipping insertion in model container [2020-12-09 18:56:50,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:56:50" (2/3) ... [2020-12-09 18:56:50,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf4fd02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:56:50, skipping insertion in model container [2020-12-09 18:56:50,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:56:50" (3/3) ... [2020-12-09 18:56:50,696 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_unwindbound20.c [2020-12-09 18:56:50,706 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:56:50,708 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 18:56:50,715 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 18:56:50,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:56:50,734 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:56:50,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:56:50,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:56:50,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:56:50,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:56:50,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:56:50,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:56:50,744 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 18:56:50,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:56:50,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:56:50,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:56:50,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:56:50,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:56:50,754 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2020-12-09 18:56:50,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:56:50,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2022017140] [2020-12-09 18:56:50,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:50,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 18:56:50,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:50,987 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 18:56:50,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:56:50,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2022017140] [2020-12-09 18:56:50,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:56:50,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:56:50,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184251038] [2020-12-09 18:56:50,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 18:56:50,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:56:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 18:56:51,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 18:56:51,003 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2020-12-09 18:56:51,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:56:51,661 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-09 18:56:51,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:56:51,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 18:56:51,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:56:51,668 INFO L225 Difference]: With dead ends: 44 [2020-12-09 18:56:51,668 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 18:56:51,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:56:51,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 18:56:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2020-12-09 18:56:51,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 18:56:51,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-12-09 18:56:51,691 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 6 [2020-12-09 18:56:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:56:51,691 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-12-09 18:56:51,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 18:56:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-12-09 18:56:51,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:56:51,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:56:51,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2020-12-09 18:56:51,893 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:56:51,895 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:56:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:56:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash 855725686, now seen corresponding path program 1 times [2020-12-09 18:56:51,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:56:51,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1673575869] [2020-12-09 18:56:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/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 18:56:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:52,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:56:52,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:56:52,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:56:53,738 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 18:56:54,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 18:56:54,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1673575869] [2020-12-09 18:56:54,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [174643040] [2020-12-09 18:56:54,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt [2020-12-09 18:56:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:54,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:56:54,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:56:54,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:56:55,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 18:56:55,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943636139] [2020-12-09 18:56:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6dc2e337-7b87-4139-89c3-8dca90b34e26/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:56:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:56:56,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 18:56:56,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:56:56,641 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 11 [2020-12-09 18:56:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:56:56,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:56:59,344 WARN L197 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 18:56:59,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:56:59,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 18:56:59,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 5] total 9 [2020-12-09 18:56:59,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863944051] [2020-12-09 18:56:59,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 18:56:59,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:56:59,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 18:56:59,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-12-09 18:56:59,358 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 9 states. [2020-12-09 18:57:01,718 WARN L197 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 18:57:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:57:03,998 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2020-12-09 18:57:04,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:57:04,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2020-12-09 18:57:04,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:57:04,030 INFO L225 Difference]: With dead ends: 22 [2020-12-09 18:57:04,030 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:57:04,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-09 18:57:04,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:57:04,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:57:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:57:04,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:57:04,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 18:57:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:57:04,032 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:57:04,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 18:57:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:57:04,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:57:04,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3,4 cvc4 --incremental --print-success --lang smt,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:57:04,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:57:07,124 WARN L197 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2020-12-09 18:57:09,062 WARN L197 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2020-12-09 18:57:09,064 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:57:09,064 INFO L262 CegarLoopResult]: For program point L27-1(lines 27 36) no Hoare annotation was computed. [2020-12-09 18:57:09,064 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 18:57:09,065 INFO L258 CegarLoopResult]: At program point L27-3(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0)))) (and (= .cse0 ULTIMATE.start_main_~x~0) (= .cse0 ULTIMATE.start_main_~y~0)))) [2020-12-09 18:57:09,065 INFO L262 CegarLoopResult]: For program point L27-4(lines 27 36) no Hoare annotation was computed. [2020-12-09 18:57:09,065 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-09 18:57:09,065 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-09 18:57:09,068 INFO L265 CegarLoopResult]: At program point L38(lines 18 39) the Hoare annotation is: true [2020-12-09 18:57:09,068 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:57:09,068 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:57:09,068 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:57:09,068 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 18:57:09,069 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-09 18:57:09,069 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ((_ sign_extend 32) (_ bv0 32)) (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0)))) [2020-12-09 18:57:09,069 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-12-09 18:57:09,069 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2020-12-09 18:57:09,074 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 18:57:09,077 INFO L168 Benchmark]: Toolchain (without parser) took 19137.78 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.3 MB in the beginning and 50.0 MB in the end (delta: -12.7 MB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:57:09,078 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 38.5 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:57:09,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.69 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 39.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:57:09,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:57:09,079 INFO L168 Benchmark]: Boogie Preprocessor took 24.12 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 36.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:57:09,080 INFO L168 Benchmark]: RCFGBuilder took 518.67 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.5 MB in the beginning and 52.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:57:09,080 INFO L168 Benchmark]: TraceAbstraction took 18384.13 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 50.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:57:09,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 38.5 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 175.69 ms. Allocated memory is still 56.6 MB. Free memory was 37.1 MB in the beginning and 39.4 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.69 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.12 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 36.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 518.67 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 36.5 MB in the beginning and 52.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18384.13 ms. Allocated memory is still 69.2 MB. Free memory was 51.7 MB in the beginning and 50.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 30.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...