./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 163f0d60898e14d7676cd2b4cedacdaf3a468c45 .............................................................................................................................................................................................................................................................................................................................................. 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 163f0d60898e14d7676cd2b4cedacdaf3a468c45 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:44:46,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:44:46,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:44:46,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:44:46,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:44:46,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:44:46,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:44:46,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:44:46,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:44:46,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:44:46,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:44:46,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:44:46,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:44:46,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:44:46,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:44:46,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:44:46,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:44:46,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:44:46,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:44:46,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:44:46,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:44:46,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:44:46,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:44:46,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:44:46,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:44:46,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:44:46,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:44:46,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:44:46,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:44:46,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:44:46,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:44:46,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:44:46,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:44:46,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:44:46,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:44:46,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:44:46,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:44:46,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:44:46,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:44:46,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:44:46,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:44:46,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:44:46,833 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:44:46,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:44:46,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:44:46,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:44:46,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:44:46,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:44:46,835 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:44:46,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:44:46,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:44:46,835 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:44:46,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:44:46,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:44:46,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:44:46,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:44:46,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:44:46,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:44:46,838 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163f0d60898e14d7676cd2b4cedacdaf3a468c45 [2020-12-09 05:44:47,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:44:47,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:44:47,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:44:47,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:44:47,040 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:44:47,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2020-12-09 05:44:47,084 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/d124e8419/443fad9b9c44449c9b46f07e3e112c3e/FLAG6c4d7e8ff [2020-12-09 05:44:47,444 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:44:47,444 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2020-12-09 05:44:47,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/d124e8419/443fad9b9c44449c9b46f07e3e112c3e/FLAG6c4d7e8ff [2020-12-09 05:44:47,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/d124e8419/443fad9b9c44449c9b46f07e3e112c3e [2020-12-09 05:44:47,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:44:47,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:44:47,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:44:47,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:44:47,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:44:47,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc95e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47, skipping insertion in model container [2020-12-09 05:44:47,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:44:47,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:44:47,589 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2020-12-09 05:44:47,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:44:47,606 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:44:47,614 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2020-12-09 05:44:47,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:44:47,629 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:44:47,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47 WrapperNode [2020-12-09 05:44:47,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:44:47,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:44:47,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:44:47,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:44:47,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:44:47,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:44:47,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:44:47,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:44:47,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... [2020-12-09 05:44:47,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:44:47,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:44:47,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:44:47,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:44:47,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:44:47,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:44:47,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:44:47,925 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-09 05:44:47,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:47 BoogieIcfgContainer [2020-12-09 05:44:47,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:44:47,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:44:47,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:44:47,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:44:47,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:44:47" (1/3) ... [2020-12-09 05:44:47,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cd2422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:44:47, skipping insertion in model container [2020-12-09 05:44:47,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:47" (2/3) ... [2020-12-09 05:44:47,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cd2422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:44:47, skipping insertion in model container [2020-12-09 05:44:47,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:47" (3/3) ... [2020-12-09 05:44:47,936 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound2.c [2020-12-09 05:44:47,949 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:44:47,952 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 05:44:47,960 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 05:44:47,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:44:47,978 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:44:47,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:44:47,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:44:47,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:44:47,979 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:44:47,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:44:47,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:44:47,990 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 05:44:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 05:44:47,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:44:47,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 05:44:47,994 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:44:47,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:44:47,997 INFO L82 PathProgramCache]: Analyzing trace with hash 3301933, now seen corresponding path program 1 times [2020-12-09 05:44:48,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:44:48,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996854339] [2020-12-09 05:44:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:44:48,076 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:44:48,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578575661] [2020-12-09 05:44:48,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:44:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:44:48,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 05:44:48,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:44:48,177 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 05:44:48,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:44:48,201 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 05:44:48,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996854339] [2020-12-09 05:44:48,202 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:44:48,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578575661] [2020-12-09 05:44:48,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:44:48,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 05:44:48,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007698535] [2020-12-09 05:44:48,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 05:44:48,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 05:44:48,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 05:44:48,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 05:44:48,217 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2020-12-09 05:44:50,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:44:50,379 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-12-09 05:44:50,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 05:44:50,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 05:44:50,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:44:50,385 INFO L225 Difference]: With dead ends: 52 [2020-12-09 05:44:50,386 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 05:44:50,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-09 05:44:50,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 05:44:50,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2020-12-09 05:44:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-09 05:44:50,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-09 05:44:50,410 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2020-12-09 05:44:50,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:44:50,411 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-09 05:44:50,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 05:44:50,411 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-09 05:44:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 05:44:50,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:44:50,411 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-09 05:44:50,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 05:44:50,614 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:44:50,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:44:50,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1187658925, now seen corresponding path program 1 times [2020-12-09 05:44:50,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:44:50,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316817273] [2020-12-09 05:44:50,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:44:50,652 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 05:44:50,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667233992] [2020-12-09 05:44:50,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:44:50,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:44:50,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-09 05:44:50,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:44:50,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:44:50,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:44:51,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316817273] [2020-12-09 05:44:51,264 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:44:51,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667233992] [2020-12-09 05:44:51,264 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-09 05:44:51,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [506794253] [2020-12-09 05:44:51,279 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 05:44:51,279 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 05:44:51,282 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 05:44:51,286 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 05:44:51,286 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 05:44:51,654 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 05:44:51,783 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 05:44:54,538 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 93 [2020-12-09 05:44:54,759 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 05:44:54,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:44:54,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-09 05:44:54,759 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2020-12-09 05:44:54,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 05:44:54,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:44:54,975 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-12-09 05:44:54,975 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-12-09 05:44:54,976 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-12-09 05:44:54,976 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-12-09 05:44:54,999 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-09 05:44:55,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:44:54 BoogieIcfgContainer [2020-12-09 05:44:55,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:44:55,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:44:55,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:44:55,001 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:44:55,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:47" (3/4) ... [2020-12-09 05:44:55,006 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 05:44:55,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:44:55,008 INFO L168 Benchmark]: Toolchain (without parser) took 7543.15 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 92.4 MB in the beginning and 57.7 MB in the end (delta: 34.8 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:44:55,009 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 99.8 MB in the end (delta: 24.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:44:55,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.74 ms. Allocated memory is still 127.9 MB. Free memory was 92.1 MB in the beginning and 103.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 05:44:55,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.56 ms. Allocated memory is still 127.9 MB. Free memory was 102.7 MB in the beginning and 101.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:44:55,011 INFO L168 Benchmark]: Boogie Preprocessor took 15.29 ms. Allocated memory is still 127.9 MB. Free memory was 101.6 MB in the beginning and 100.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:44:55,012 INFO L168 Benchmark]: RCFGBuilder took 257.44 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 81.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:44:55,013 INFO L168 Benchmark]: TraceAbstraction took 7070.83 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 81.1 MB in the beginning and 57.7 MB in the end (delta: 23.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:44:55,013 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 155.2 MB. Free memory is still 57.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:44:55,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 99.8 MB in the end (delta: 24.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 164.74 ms. Allocated memory is still 127.9 MB. Free memory was 92.1 MB in the beginning and 103.2 MB in the end (delta: -11.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.56 ms. Allocated memory is still 127.9 MB. Free memory was 102.7 MB in the beginning and 101.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.29 ms. Allocated memory is still 127.9 MB. Free memory was 101.6 MB in the beginning and 100.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 257.44 ms. Allocated memory is still 127.9 MB. Free memory was 100.4 MB in the beginning and 81.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7070.83 ms. Allocated memory was 127.9 MB in the beginning and 155.2 MB in the end (delta: 27.3 MB). Free memory was 81.1 MB in the beginning and 57.7 MB in the end (delta: 23.4 MB). Peak memory consumption was 51.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 155.2 MB. Free memory is still 57.7 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: [L18] short k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_short() [L7] COND TRUE !cond [L7] COND FALSE !(!cond) [L24] y = 0 [L25] x = 0 [L26] c = 0 [L28] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x [L28] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x [L28] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 6.9s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 33 SDslu, 27 SDs, 0 SdLazy, 27 SolverSat, 24 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 6 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 16 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 05:44:56,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:44:56,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:44:56,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:44:56,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:44:56,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:44:56,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:44:56,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:44:56,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:44:56,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:44:56,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:44:56,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:44:56,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:44:56,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:44:56,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:44:56,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:44:56,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:44:56,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:44:56,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:44:56,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:44:56,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:44:56,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:44:56,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:44:56,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:44:56,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:44:56,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:44:56,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:44:56,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:44:56,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:44:56,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:44:56,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:44:56,679 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:44:56,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:44:56,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:44:56,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:44:56,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:44:56,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:44:56,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:44:56,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:44:56,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:44:56,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:44:56,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 05:44:56,703 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:44:56,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:44:56,704 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:44:56,704 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:44:56,705 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:44:56,705 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:44:56,705 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:44:56,705 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:44:56,705 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:44:56,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:44:56,707 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:44:56,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:44:56,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:44:56,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:44:56,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:44:56,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:44:56,708 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:44:56,708 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 05:44:56,708 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 05:44:56,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:44:56,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:44:56,709 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:44:56,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:44:56,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:44:56,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 05:44:56,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:44:56,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:44:56,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:44:56,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:44:56,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:44:56,711 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 05:44:56,711 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 05:44:56,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:44:56,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:44:56,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:44:56,712 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 163f0d60898e14d7676cd2b4cedacdaf3a468c45 [2020-12-09 05:44:56,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:44:56,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:44:56,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:44:56,949 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:44:56,950 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:44:56,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2020-12-09 05:44:56,999 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/2b9d29692/93f3f0a6de32413a965cc07eb7c72cd9/FLAG8329f6963 [2020-12-09 05:44:57,357 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:44:57,358 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c [2020-12-09 05:44:57,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/2b9d29692/93f3f0a6de32413a965cc07eb7c72cd9/FLAG8329f6963 [2020-12-09 05:44:57,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/data/2b9d29692/93f3f0a6de32413a965cc07eb7c72cd9 [2020-12-09 05:44:57,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:44:57,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:44:57,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:44:57,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:44:57,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:44:57,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1115a624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57, skipping insertion in model container [2020-12-09 05:44:57,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:44:57,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:44:57,503 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2020-12-09 05:44:57,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:44:57,525 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:44:57,533 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_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound2.c[458,471] [2020-12-09 05:44:57,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:44:57,550 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:44:57,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57 WrapperNode [2020-12-09 05:44:57,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:44:57,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:44:57,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:44:57,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:44:57,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:44:57,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:44:57,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:44:57,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:44:57,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... [2020-12-09 05:44:57,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:44:57,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:44:57,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:44:57,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:44:57,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:44:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 05:44:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:44:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:44:57,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:44:59,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:44:59,694 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-09 05:44:59,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:59 BoogieIcfgContainer [2020-12-09 05:44:59,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:44:59,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:44:59,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:44:59,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:44:59,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:44:57" (1/3) ... [2020-12-09 05:44:59,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461074cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:44:59, skipping insertion in model container [2020-12-09 05:44:59,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:44:57" (2/3) ... [2020-12-09 05:44:59,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@461074cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:44:59, skipping insertion in model container [2020-12-09 05:44:59,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:44:59" (3/3) ... [2020-12-09 05:44:59,701 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound2.c [2020-12-09 05:44:59,710 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:44:59,713 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 05:44:59,720 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 05:44:59,738 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:44:59,738 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:44:59,738 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:44:59,738 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:44:59,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:44:59,738 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:44:59,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:44:59,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:44:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-09 05:44:59,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 05:44:59,749 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:44:59,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:44:59,750 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:44:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:44:59,754 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-09 05:44:59,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:44:59,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554125978] [2020-12-09 05:44:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:44:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:44:59,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 05:44:59,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:44:59,955 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 05:44:59,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:44:59,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554125978] [2020-12-09 05:44:59,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:44:59,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:44:59,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913191203] [2020-12-09 05:44:59,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 05:44:59,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:44:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 05:44:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:44:59,970 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-09 05:44:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:44:59,980 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2020-12-09 05:44:59,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 05:44:59,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 05:44:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:44:59,987 INFO L225 Difference]: With dead ends: 43 [2020-12-09 05:44:59,987 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 05:44:59,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:44:59,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 05:45:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 05:45:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 05:45:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-09 05:45:00,009 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2020-12-09 05:45:00,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:45:00,010 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-09 05:45:00,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 05:45:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-09 05:45:00,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 05:45:00,010 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:45:00,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:45:00,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 05:45:00,211 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:45:00,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:45:00,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-09 05:45:00,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:45:00,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639233552] [2020-12-09 05:45:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/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 05:45:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:00,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 05:45:00,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:00,489 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 05:45:00,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:45:00,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639233552] [2020-12-09 05:45:00,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:45:00,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 05:45:00,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224243830] [2020-12-09 05:45:00,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 05:45:00,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:45:00,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 05:45:00,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 05:45:00,492 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2020-12-09 05:45:02,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:45:02,939 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-12-09 05:45:02,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 05:45:02,940 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-09 05:45:02,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:45:02,941 INFO L225 Difference]: With dead ends: 33 [2020-12-09 05:45:02,941 INFO L226 Difference]: Without dead ends: 23 [2020-12-09 05:45:02,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 05:45:02,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-09 05:45:02,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-12-09 05:45:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-09 05:45:02,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-12-09 05:45:02,947 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2020-12-09 05:45:02,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:45:02,948 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-12-09 05:45:02,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 05:45:02,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-12-09 05:45:02,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 05:45:02,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:45:02,949 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:45:03,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 05:45:03,151 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:45:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:45:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash 636965506, now seen corresponding path program 1 times [2020-12-09 05:45:03,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:45:03,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32637450] [2020-12-09 05:45:03,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 05:45:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:03,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 05:45:03,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:04,440 WARN L197 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 05:45:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:45:04,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:07,680 WARN L197 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 05:45:10,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 05:45:10,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32637450] [2020-12-09 05:45:10,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [809252757] [2020-12-09 05:45:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2020-12-09 05:45:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:10,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 05:45:10,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:45:11,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:14,478 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 05:45:14,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043210821] [2020-12-09 05:45:14,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:45:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:15,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 05:45:15,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:16,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:45:16,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:19,030 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 05:45:19,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 05:45:19,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 4] total 8 [2020-12-09 05:45:19,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178533860] [2020-12-09 05:45:19,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 05:45:19,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:45:19,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 05:45:19,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-09 05:45:19,032 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2020-12-09 05:45:22,409 WARN L197 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 05:45:27,555 WARN L197 SmtUtils]: Spent 3.25 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 05:45:29,105 WARN L197 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 05:45:35,155 WARN L197 SmtUtils]: Spent 2.00 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 05:45:35,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:45:35,156 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-12-09 05:45:35,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 05:45:35,156 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-12-09 05:45:35,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:45:35,157 INFO L225 Difference]: With dead ends: 31 [2020-12-09 05:45:35,157 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 05:45:35,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-09 05:45:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 05:45:35,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2020-12-09 05:45:35,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 05:45:35,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-09 05:45:35,162 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2020-12-09 05:45:35,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:45:35,162 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-09 05:45:35,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 05:45:35,162 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-09 05:45:35,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 05:45:35,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:45:35,163 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:45:35,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 cvc4 --incremental --print-success --lang smt [2020-12-09 05:45:35,767 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:45:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:45:35,768 INFO L82 PathProgramCache]: Analyzing trace with hash -531865812, now seen corresponding path program 1 times [2020-12-09 05:45:35,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:45:35,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026434144] [2020-12-09 05:45:35,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 05:45:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:36,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 05:45:36,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:36,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:45:36,593 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 05:45:36,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:38,282 WARN L197 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 05:45:39,832 WARN L197 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 05:45:41,176 WARN L197 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 05:45:41,196 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 05:45:41,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026434144] [2020-12-09 05:45:41,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [474609897] [2020-12-09 05:45:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt [2020-12-09 05:45:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:41,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 05:45:41,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:42,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:45:42,149 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 05:45:42,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:43,515 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 05:45:43,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057491047] [2020-12-09 05:45:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:45:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:45:46,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 05:45:46,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:45:49,867 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2020-12-09 05:45:53,285 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2020-12-09 05:45:53,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:45:53,307 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 05:45:53,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:45:56,650 WARN L197 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 05:45:56,660 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 05:45:56,660 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 05:46:08,854 WARN L197 SmtUtils]: Spent 3.22 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 05:46:16,384 WARN L197 SmtUtils]: Spent 2.70 s on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 05:46:16,422 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 05:46:16,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 05:46:16,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6, 6, 11, 8] total 22 [2020-12-09 05:46:16,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104250321] [2020-12-09 05:46:16,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 05:46:16,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:46:16,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 05:46:16,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2020-12-09 05:46:16,424 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 22 states. [2020-12-09 05:46:25,292 WARN L197 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-12-09 05:46:27,287 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-09 05:46:30,136 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 05:46:33,528 WARN L197 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 05:46:35,442 WARN L197 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 05:46:42,012 WARN L197 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 05:46:44,731 WARN L197 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 05:46:46,508 WARN L197 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 05:46:51,588 WARN L197 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 05:46:53,550 WARN L197 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 05:46:56,247 WARN L197 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 05:46:57,972 WARN L197 SmtUtils]: Spent 967.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 05:47:03,586 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 05:47:06,280 WARN L197 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 05:47:08,763 WARN L197 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 05:47:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:47:09,135 INFO L93 Difference]: Finished difference Result 44 states and 47 transitions. [2020-12-09 05:47:09,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-09 05:47:09,148 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 17 [2020-12-09 05:47:09,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:47:09,149 INFO L225 Difference]: With dead ends: 44 [2020-12-09 05:47:09,149 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 05:47:09,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 64.8s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2020-12-09 05:47:09,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 05:47:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 05:47:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 05:47:09,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2020-12-09 05:47:09,159 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2020-12-09 05:47:09,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:47:09,159 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2020-12-09 05:47:09,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 05:47:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2020-12-09 05:47:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-09 05:47:09,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:47:09,161 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:47:09,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt [2020-12-09 05:47:09,764 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:47:09,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:47:09,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1374933420, now seen corresponding path program 2 times [2020-12-09 05:47:09,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:47:09,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [703990053] [2020-12-09 05:47:09,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 05:47:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:47:10,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 05:47:10,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:47:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:47:11,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:47:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:47:12,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [703990053] [2020-12-09 05:47:12,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1894702161] [2020-12-09 05:47:12,168 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt [2020-12-09 05:47:14,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-09 05:47:14,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 05:47:14,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 05:47:14,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:47:16,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:47:16,250 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:47:16,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:47:20,348 WARN L197 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 05:47:23,640 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 05:47:26,936 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 05:47:32,311 WARN L197 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-09 05:47:37,130 WARN L197 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 05:47:41,555 WARN L197 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 05:47:53,155 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 05:47:53,183 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:47:53,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688343770] [2020-12-09 05:47:53,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5de1ce67-f2bd-4e8f-b32b-aadd5ac66229/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 05:47:54,389 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-09 05:47:54,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 05:47:54,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 05:47:54,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:47:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:47:57,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 05:48:02,606 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 05:48:05,900 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 05:48:05,900 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 05:48:07,205 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:48:07,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 05:48:07,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10, 10, 10, 10] total 45 [2020-12-09 05:48:07,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762621692] [2020-12-09 05:48:07,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-12-09 05:48:07,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:48:07,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-12-09 05:48:07,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1640, Unknown=4, NotChecked=0, Total=1980 [2020-12-09 05:48:07,208 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 45 states. [2020-12-09 05:48:11,779 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-12-09 05:48:12,225 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-12-09 05:48:14,424 WARN L197 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-12-09 05:48:15,267 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-12-09 05:48:15,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:48:15,276 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-12-09 05:48:15,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 05:48:15,277 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 29 [2020-12-09 05:48:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:48:15,278 INFO L225 Difference]: With dead ends: 30 [2020-12-09 05:48:15,278 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:48:15,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 53.8s TimeCoverageRelationStatistics Valid=500, Invalid=2046, Unknown=4, NotChecked=0, Total=2550 [2020-12-09 05:48:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:48:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:48:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:48:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:48:15,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-12-09 05:48:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:48:15,280 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:48:15,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-12-09 05:48:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:48:15,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:48:15,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt [2020-12-09 05:48:15,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:48:31,334 WARN L197 SmtUtils]: Spent 15.33 s on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-12-09 05:48:53,900 WARN L197 SmtUtils]: Spent 22.56 s on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-12-09 05:49:07,581 WARN L197 SmtUtils]: Spent 13.68 s on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-12-09 05:49:07,585 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 05:49:07,585 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-09 05:49:07,585 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-09 05:49:07,585 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2020-12-09 05:49:07,585 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L258 CegarLoopResult]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse1 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse10 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse2 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse5 ((_ sign_extend 32) .cse10)) (.cse6 (or .cse3 (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) (.cse7 (= .cse1 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0)))) (.cse8 ((_ sign_extend 32) (_ bv1 32))) (.cse4 (bvsle .cse10 (_ bv2 32)))) (or (let ((.cse0 (bvadd .cse8 .cse1))) (and (= .cse0 ULTIMATE.start_main_~y~0) (= .cse1 (bvadd (bvmul (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv18446744073709551615 64)) ULTIMATE.start_main_~x~0)) .cse2 .cse3 (= .cse0 ULTIMATE.start_main_~c~0) .cse4 (bvslt .cse1 .cse5) .cse6 .cse7)) (let ((.cse9 (bvadd (bvmul .cse8 (_ bv2 64)) .cse1))) (and .cse2 .cse3 (= ULTIMATE.start_main_~y~0 .cse9) (= (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ULTIMATE.start_main_~y~0 .cse5)) .cse6 (= ULTIMATE.start_main_~c~0 .cse9) .cse7)) (and (bvsge .cse10 (_ bv0 32)) .cse3 (= .cse1 ULTIMATE.start_main_~x~0) .cse4 (= .cse1 ULTIMATE.start_main_~y~0) (= .cse1 ULTIMATE.start_main_~c~0))))) [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L265 CegarLoopResult]: At program point L41(lines 17 42) the Hoare annotation is: true [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:49:07,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L258 CegarLoopResult]: At program point L10-2(lines 31 32) the Hoare annotation is: (let ((.cse1 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse10 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse5 ((_ sign_extend 32) .cse10)) (.cse6 (or .cse3 (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) (.cse7 (= .cse1 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0)))) (.cse8 ((_ sign_extend 32) (_ bv1 32))) (.cse2 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (bvsle .cse10 (_ bv2 32)))) (or (let ((.cse0 (bvadd .cse8 .cse1))) (and (= .cse0 ULTIMATE.start_main_~y~0) (= .cse1 (bvadd (bvmul (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv18446744073709551615 64)) ULTIMATE.start_main_~x~0)) .cse2 .cse3 (= .cse0 ULTIMATE.start_main_~c~0) .cse4 (bvslt .cse1 .cse5) .cse6 .cse7)) (let ((.cse9 (bvadd (bvmul .cse8 (_ bv2 64)) .cse1))) (and .cse2 .cse3 (= ULTIMATE.start_main_~y~0 .cse9) (= (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ULTIMATE.start_main_~y~0 .cse5)) .cse6 (= ULTIMATE.start_main_~c~0 .cse9) .cse7)) (and (bvsge .cse10 (_ bv0 32)) .cse2 .cse3 (= .cse1 ULTIMATE.start_main_~x~0) .cse4 (= .cse1 ULTIMATE.start_main_~y~0) (= .cse1 ULTIMATE.start_main_~c~0))))) [2020-12-09 05:49:07,587 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L262 CegarLoopResult]: For program point L6-1(lines 6 8) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L258 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: (let ((.cse11 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse10 ((_ sign_extend 32) (_ bv0 32))) (.cse2 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse5 ((_ sign_extend 32) .cse11))) (let ((.cse0 (bvsge .cse11 (_ bv0 32))) (.cse3 (= (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ULTIMATE.start_main_~y~0 .cse5))) (.cse4 (bvsle .cse11 (_ bv2 32))) (.cse6 (or .cse2 (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) (.cse7 (= .cse10 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0)))) (.cse1 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (or (bvslt (bvadd ((_ sign_extend 32) (_ bv1 32)) ULTIMATE.start_main_~c~0) .cse5) (not (bvslt ULTIMATE.start_main_~c~0 .cse5))) .cse6 .cse7) (and .cse0 .cse1 .cse2 (forall ((ULTIMATE.start_main_~k~0 (_ BitVec 16))) (let ((.cse8 ((_ sign_extend 32) (_ bv1 32))) (.cse9 ((_ sign_extend 32) ((_ sign_extend 16) ULTIMATE.start_main_~k~0)))) (or (bvslt (bvadd .cse8 ULTIMATE.start_main_~c~0) .cse9) (not (bvslt ULTIMATE.start_main_~c~0 .cse9)) (= (bvadd (bvmul .cse8 .cse8) (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul (bvmul .cse8 ULTIMATE.start_main_~y~0) (_ bv2 64))) (bvadd (bvmul .cse8 .cse9) (bvmul ULTIMATE.start_main_~y~0 .cse9)))))) .cse3 .cse4 .cse6 .cse7) (and .cse1 (= .cse10 ULTIMATE.start_main_~x~0) (= .cse10 ULTIMATE.start_main_~y~0)))))) [2020-12-09 05:49:07,587 INFO L262 CegarLoopResult]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2020-12-09 05:49:07,587 INFO L265 CegarLoopResult]: At program point L10-8(lines 9 15) the Hoare annotation is: true [2020-12-09 05:49:07,592 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.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 05:49:07,596 INFO L168 Benchmark]: Toolchain (without parser) took 250215.52 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 30.8 MB in the beginning and 38.4 MB in the end (delta: -7.6 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-12-09 05:49:07,596 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:49:07,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.58 ms. Allocated memory is still 52.4 MB. Free memory was 30.7 MB in the beginning and 31.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:49:07,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.50 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 49.5 MB in the end (delta: -17.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:49:07,598 INFO L168 Benchmark]: Boogie Preprocessor took 23.37 ms. Allocated memory is still 65.0 MB. Free memory was 49.5 MB in the beginning and 48.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:49:07,599 INFO L168 Benchmark]: RCFGBuilder took 2080.23 ms. Allocated memory is still 65.0 MB. Free memory was 48.1 MB in the beginning and 34.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:49:07,599 INFO L168 Benchmark]: TraceAbstraction took 247897.89 ms. Allocated memory is still 65.0 MB. Free memory was 33.8 MB in the beginning and 38.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:49:07,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 34.9 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 169.58 ms. Allocated memory is still 52.4 MB. Free memory was 30.7 MB in the beginning and 31.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.50 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 31.7 MB in the beginning and 49.5 MB in the end (delta: -17.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.37 ms. Allocated memory is still 65.0 MB. Free memory was 49.5 MB in the beginning and 48.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2080.23 ms. Allocated memory is still 65.0 MB. Free memory was 48.1 MB in the beginning and 34.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 247897.89 ms. Allocated memory is still 65.0 MB. Free memory was 33.8 MB in the beginning and 38.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 17.0 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 - 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 3 specifications checked. All of them hold - 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...