./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.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_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/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 c4a921a48f99bfe08f1ebfef6b48605d2b05f34d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/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 c4a921a48f99bfe08f1ebfef6b48605d2b05f34d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:47:24,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:47:24,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:47:24,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:47:24,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:47:24,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:47:24,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:47:24,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:47:24,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:47:24,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:47:24,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:47:24,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:47:24,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:47:24,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:47:24,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:47:24,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:47:24,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:47:24,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:47:24,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:47:24,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:47:24,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:47:24,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:47:24,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:47:24,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:47:24,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:47:24,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:47:24,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:47:24,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:47:24,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:47:24,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:47:24,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:47:24,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:47:24,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:47:24,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:47:24,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:47:24,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:47:24,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:47:24,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:47:24,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:47:24,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:47:24,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:47:24,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:47:24,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:47:24,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:47:24,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:47:24,710 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:47:24,711 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:47:24,711 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:47:24,711 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:47:24,712 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:47:24,712 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:47:24,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:47:24,712 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:47:24,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:47:24,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:47:24,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:47:24,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:47:24,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:47:24,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:47:24,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:47:24,715 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_8a2f2533-7259-4128-881c-ab911e6ccce3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4a921a48f99bfe08f1ebfef6b48605d2b05f34d [2020-12-09 18:47:24,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:47:24,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:47:24,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:47:24,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:47:24,913 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:47:24,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-09 18:47:24,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/cf823140a/4c935f3c64e146efbe8b70431cb8df13/FLAGd422391eb [2020-12-09 18:47:25,310 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:47:25,310 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-09 18:47:25,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/cf823140a/4c935f3c64e146efbe8b70431cb8df13/FLAGd422391eb [2020-12-09 18:47:25,733 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/cf823140a/4c935f3c64e146efbe8b70431cb8df13 [2020-12-09 18:47:25,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:47:25,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:47:25,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:47:25,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:47:25,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:47:25,741 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130cac76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25, skipping insertion in model container [2020-12-09 18:47:25,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:47:25,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:47:25,863 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_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c[576,589] [2020-12-09 18:47:25,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:47:25,883 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:47:25,892 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_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c[576,589] [2020-12-09 18:47:25,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:47:25,910 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:47:25,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25 WrapperNode [2020-12-09 18:47:25,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:47:25,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:47:25,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:47:25,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:47:25,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:47:25,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:47:25,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:47:25,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:47:25,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,956 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... [2020-12-09 18:47:25,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:47:25,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:47:25,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:47:25,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:47:25,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:47:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:47:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:47:26,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:47:26,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:47:26,325 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:47:26,325 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 18:47:26,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:47:26 BoogieIcfgContainer [2020-12-09 18:47:26,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:47:26,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:47:26,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:47:26,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:47:26,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:47:25" (1/3) ... [2020-12-09 18:47:26,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec6a0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:47:26, skipping insertion in model container [2020-12-09 18:47:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:25" (2/3) ... [2020-12-09 18:47:26,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec6a0b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:47:26, skipping insertion in model container [2020-12-09 18:47:26,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:47:26" (3/3) ... [2020-12-09 18:47:26,333 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound5.c [2020-12-09 18:47:26,342 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:47:26,345 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 18:47:26,352 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 18:47:26,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:47:26,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:47:26,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:47:26,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:47:26,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:47:26,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:47:26,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:47:26,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:47:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-09 18:47:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 18:47:26,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:26,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 18:47:26,382 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:26,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:26,386 INFO L82 PathProgramCache]: Analyzing trace with hash 5424045, now seen corresponding path program 1 times [2020-12-09 18:47:26,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:47:26,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748551110] [2020-12-09 18:47:26,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:47:26,457 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:47:26,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357265302] [2020-12-09 18:47:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:26,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 18:47:26,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:26,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:26,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748551110] [2020-12-09 18:47:26,575 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:47:26,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357265302] [2020-12-09 18:47:26,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:26,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 18:47:26,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610904237] [2020-12-09 18:47:26,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:47:26,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:47:26,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:47:26,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:47:26,591 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2020-12-09 18:47:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:26,702 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2020-12-09 18:47:26,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 18:47:26,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 18:47:26,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:26,709 INFO L225 Difference]: With dead ends: 75 [2020-12-09 18:47:26,709 INFO L226 Difference]: Without dead ends: 38 [2020-12-09 18:47:26,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-12-09 18:47:26,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-09 18:47:26,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2020-12-09 18:47:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 18:47:26,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-09 18:47:26,738 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 4 [2020-12-09 18:47:26,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:26,739 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-09 18:47:26,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:47:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-09 18:47:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:47:26,739 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:26,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:47:26,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 18:47:26,941 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:26,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:26,942 INFO L82 PathProgramCache]: Analyzing trace with hash 917696144, now seen corresponding path program 1 times [2020-12-09 18:47:26,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:47:26,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009560449] [2020-12-09 18:47:26,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:47:26,962 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:47:26,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481597494] [2020-12-09 18:47:26,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:27,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 18:47:27,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:27,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:27,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:27,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009560449] [2020-12-09 18:47:27,129 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:47:27,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481597494] [2020-12-09 18:47:27,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:27,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 18:47:27,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82385080] [2020-12-09 18:47:27,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:47:27,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:47:27,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:47:27,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:47:27,131 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 6 states. [2020-12-09 18:47:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:27,212 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2020-12-09 18:47:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:47:27,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-09 18:47:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:27,213 INFO L225 Difference]: With dead ends: 52 [2020-12-09 18:47:27,213 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 18:47:27,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:47:27,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 18:47:27,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-12-09 18:47:27,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-09 18:47:27,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-09 18:47:27,224 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 6 [2020-12-09 18:47:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:27,224 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-09 18:47:27,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:47:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2020-12-09 18:47:27,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 18:47:27,225 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:27,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:27,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:27,427 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:27,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:27,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1413549718, now seen corresponding path program 1 times [2020-12-09 18:47:27,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:47:27,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383366089] [2020-12-09 18:47:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:47:27,466 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:47:27,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406916992] [2020-12-09 18:47:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:27,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:47:27,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:27,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:27,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383366089] [2020-12-09 18:47:27,648 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:47:27,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406916992] [2020-12-09 18:47:27,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:27,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-12-09 18:47:27,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952856327] [2020-12-09 18:47:27,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:47:27,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:47:27,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:47:27,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:47:27,650 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 5 states. [2020-12-09 18:47:27,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:27,705 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2020-12-09 18:47:27,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:47:27,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 18:47:27,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:27,706 INFO L225 Difference]: With dead ends: 44 [2020-12-09 18:47:27,706 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 18:47:27,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:47:27,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 18:47:27,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2020-12-09 18:47:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-09 18:47:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-12-09 18:47:27,714 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 13 [2020-12-09 18:47:27,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:27,714 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-12-09 18:47:27,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:47:27,714 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-12-09 18:47:27,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 18:47:27,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:27,715 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:27,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:27,917 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:27,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:27,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1898150023, now seen corresponding path program 1 times [2020-12-09 18:47:27,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:47:27,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134627742] [2020-12-09 18:47:27,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:47:27,955 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 18:47:27,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1794559380] [2020-12-09 18:47:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:27,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-09 18:47:27,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:28,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134627742] [2020-12-09 18:47:28,167 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 18:47:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794559380] [2020-12-09 18:47:28,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1540430974] [2020-12-09 18:47:28,182 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2020-12-09 18:47:28,182 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 18:47:28,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 18:47:28,191 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 18:47:28,191 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 18:47:28,267 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 18:47:28,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:28,808 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: cannot handle proper monomial at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.allCoefficientsOne(DualJunctionTir.java:670) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildDualFiniteJunction(DualJunctionTir.java:628) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:612) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:448) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:205) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:158) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryExhaustivelyToEliminate(DualJunctionTir.java:125) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir.tryToEliminate(DualJunctionTir.java:112) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 18:47:28,812 INFO L168 Benchmark]: Toolchain (without parser) took 3074.89 ms. Allocated memory was 86.0 MB in the beginning and 125.8 MB in the end (delta: 39.8 MB). Free memory was 52.1 MB in the beginning and 51.6 MB in the end (delta: 578.5 kB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,812 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 86.0 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:47:28,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.64 ms. Allocated memory is still 86.0 MB. Free memory was 51.9 MB in the beginning and 63.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.23 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 61.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,814 INFO L168 Benchmark]: Boogie Preprocessor took 21.08 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 60.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,815 INFO L168 Benchmark]: RCFGBuilder took 365.52 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 71.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,816 INFO L168 Benchmark]: TraceAbstraction took 2482.59 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.5 MB in the beginning and 51.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:47:28,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 86.0 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 173.64 ms. Allocated memory is still 86.0 MB. Free memory was 51.9 MB in the beginning and 63.3 MB in the end (delta: -11.3 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.23 ms. Allocated memory is still 86.0 MB. Free memory was 63.3 MB in the beginning and 61.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.08 ms. Allocated memory is still 86.0 MB. Free memory was 61.7 MB in the beginning and 60.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 365.52 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 71.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2482.59 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.5 MB in the beginning and 51.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: cannot handle proper monomial de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: cannot handle proper monomial: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionTir$ExplicitLhsPolynomialRelations.allCoefficientsOne(DualJunctionTir.java:670) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:47:30,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:47:30,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:47:30,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:47:30,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:47:30,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:47:30,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:47:30,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:47:30,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:47:30,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:47:30,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:47:30,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:47:30,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:47:30,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:47:30,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:47:30,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:47:30,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:47:30,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:47:30,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:47:30,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:47:30,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:47:30,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:47:30,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:47:30,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:47:30,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:47:30,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:47:30,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:47:30,473 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:47:30,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:47:30,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:47:30,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:47:30,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:47:30,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:47:30,478 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:47:30,479 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:47:30,479 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:47:30,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:47:30,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:47:30,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:47:30,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:47:30,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:47:30,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:47:30,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:47:30,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:47:30,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:47:30,511 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:47:30,512 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:47:30,512 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:47:30,512 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:47:30,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:47:30,512 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:47:30,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:47:30,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:47:30,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:47:30,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:47:30,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:47:30,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:47:30,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:47:30,514 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:47:30,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:47:30,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:47:30,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:47:30,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:47:30,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:47:30,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:47:30,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:47:30,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:47:30,517 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:47:30,517 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:47:30,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:47:30,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:47:30,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:47:30,518 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_8a2f2533-7259-4128-881c-ab911e6ccce3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4a921a48f99bfe08f1ebfef6b48605d2b05f34d [2020-12-09 18:47:30,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:47:30,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:47:30,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:47:30,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:47:30,762 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:47:30,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-09 18:47:30,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/fffb20db8/1883d4e7451341bfb7c14790e9c4bb34/FLAG4b1e3ec08 [2020-12-09 18:47:31,204 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:47:31,204 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c [2020-12-09 18:47:31,209 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/fffb20db8/1883d4e7451341bfb7c14790e9c4bb34/FLAG4b1e3ec08 [2020-12-09 18:47:31,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/data/fffb20db8/1883d4e7451341bfb7c14790e9c4bb34 [2020-12-09 18:47:31,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:47:31,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:47:31,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:47:31,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:47:31,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:47:31,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417436e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31, skipping insertion in model container [2020-12-09 18:47:31,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:47:31,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:47:31,336 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_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c[576,589] [2020-12-09 18:47:31,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:47:31,364 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:47:31,374 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_8a2f2533-7259-4128-881c-ab911e6ccce3/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound5.c[576,589] [2020-12-09 18:47:31,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:47:31,403 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:47:31,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31 WrapperNode [2020-12-09 18:47:31,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:47:31,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:47:31,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:47:31,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:47:31,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:47:31,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:47:31,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:47:31,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:47:31,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... [2020-12-09 18:47:31,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:47:31,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:47:31,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:47:31,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:47:31,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:47:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:47:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:47:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:47:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:47:32,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:47:32,098 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 18:47:32,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:47:32 BoogieIcfgContainer [2020-12-09 18:47:32,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:47:32,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:47:32,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:47:32,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:47:32,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:47:31" (1/3) ... [2020-12-09 18:47:32,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc5684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:47:32, skipping insertion in model container [2020-12-09 18:47:32,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:47:31" (2/3) ... [2020-12-09 18:47:32,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc5684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:47:32, skipping insertion in model container [2020-12-09 18:47:32,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:47:32" (3/3) ... [2020-12-09 18:47:32,105 INFO L111 eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound5.c [2020-12-09 18:47:32,118 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:47:32,121 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-09 18:47:32,129 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-09 18:47:32,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:47:32,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:47:32,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:47:32,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:47:32,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:47:32,147 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:47:32,147 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:47:32,147 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:47:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-09 18:47:32,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 18:47:32,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:32,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:32,162 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash 330581779, now seen corresponding path program 1 times [2020-12-09 18:47:32,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:47:32,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490432833] [2020-12-09 18:47:32,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 18:47:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:32,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:47:32,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:32,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:47:32,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490432833] [2020-12-09 18:47:32,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:32,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:47:32,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915873150] [2020-12-09 18:47:32,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:47:32,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:47:32,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:47:32,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:47:32,296 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-09 18:47:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:32,312 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-12-09 18:47:32,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:47:32,313 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-09 18:47:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:32,320 INFO L225 Difference]: With dead ends: 83 [2020-12-09 18:47:32,320 INFO L226 Difference]: Without dead ends: 39 [2020-12-09 18:47:32,322 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 18:47:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-09 18:47:32,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-09 18:47:32,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-09 18:47:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-12-09 18:47:32,348 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 11 [2020-12-09 18:47:32,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:32,348 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-12-09 18:47:32,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:47:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-12-09 18:47:32,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 18:47:32,349 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:32,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:32,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:47:32,550 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:32,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:32,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1507472743, now seen corresponding path program 1 times [2020-12-09 18:47:32,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:47:32,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5403786] [2020-12-09 18:47:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 18:47:32,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:32,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:47:32,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:32,731 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:47:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:32,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:47:32,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5403786] [2020-12-09 18:47:32,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:32,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:47:32,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322896404] [2020-12-09 18:47:32,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:47:32,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:47:32,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:47:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:47:32,752 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 6 states. [2020-12-09 18:47:33,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:33,278 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-12-09 18:47:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:47:33,284 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-09 18:47:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:33,285 INFO L225 Difference]: With dead ends: 52 [2020-12-09 18:47:33,285 INFO L226 Difference]: Without dead ends: 50 [2020-12-09 18:47:33,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:47:33,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-09 18:47:33,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2020-12-09 18:47:33,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-12-09 18:47:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-12-09 18:47:33,298 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 11 [2020-12-09 18:47:33,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:33,298 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-12-09 18:47:33,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:47:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-12-09 18:47:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 18:47:33,299 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:33,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:33,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:47:33,501 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:33,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1277171076, now seen corresponding path program 1 times [2020-12-09 18:47:33,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:47:33,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234356969] [2020-12-09 18:47:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/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 18:47:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:33,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 18:47:33,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:33,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:47:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:33,835 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:47:33,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234356969] [2020-12-09 18:47:33,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:33,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 18:47:33,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091271317] [2020-12-09 18:47:33,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 18:47:33,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:47:33,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 18:47:33,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:47:33,837 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 8 states. [2020-12-09 18:47:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:34,386 INFO L93 Difference]: Finished difference Result 70 states and 72 transitions. [2020-12-09 18:47:34,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 18:47:34,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-09 18:47:34,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:34,391 INFO L225 Difference]: With dead ends: 70 [2020-12-09 18:47:34,391 INFO L226 Difference]: Without dead ends: 60 [2020-12-09 18:47:34,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-12-09 18:47:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-09 18:47:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2020-12-09 18:47:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-09 18:47:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2020-12-09 18:47:34,398 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 13 [2020-12-09 18:47:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:34,398 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2020-12-09 18:47:34,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 18:47:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2020-12-09 18:47:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 18:47:34,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:34,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:34,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:47:34,601 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:34,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:34,602 INFO L82 PathProgramCache]: Analyzing trace with hash 916732292, now seen corresponding path program 1 times [2020-12-09 18:47:34,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:47:34,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028043470] [2020-12-09 18:47:34,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 18:47:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:34,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 18:47:34,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:34,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:47:34,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:34,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:47:34,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028043470] [2020-12-09 18:47:34,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:47:34,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 18:47:34,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26187485] [2020-12-09 18:47:34,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 18:47:34,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:47:34,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 18:47:34,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:47:34,877 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 8 states. [2020-12-09 18:47:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:47:35,453 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2020-12-09 18:47:35,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 18:47:35,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-12-09 18:47:35,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:47:35,458 INFO L225 Difference]: With dead ends: 95 [2020-12-09 18:47:35,459 INFO L226 Difference]: Without dead ends: 89 [2020-12-09 18:47:35,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-09 18:47:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-12-09 18:47:35,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 72. [2020-12-09 18:47:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-09 18:47:35,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2020-12-09 18:47:35,472 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 16 [2020-12-09 18:47:35,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:47:35,472 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2020-12-09 18:47:35,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 18:47:35,472 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2020-12-09 18:47:35,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 18:47:35,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:47:35,473 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:47:35,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 18:47:35,675 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:47:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:47:35,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1552659725, now seen corresponding path program 1 times [2020-12-09 18:47:35,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:47:35,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169246373] [2020-12-09 18:47:35,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 18:47:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:35,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-09 18:47:35,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:36,702 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2020-12-09 18:47:36,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:47:37,145 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2020-12-09 18:47:37,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:47:37,315 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:47:37,353 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 18:47:37,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:39,433 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 18:47:39,439 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 18:47:39,439 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 18:47:41,178 WARN L197 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 18:47:42,705 WARN L197 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 18:47:42,710 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 18:47:42,711 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 18:47:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:42,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169246373] [2020-12-09 18:47:42,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557436885] [2020-12-09 18:47:42,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt [2020-12-09 18:47:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:43,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:47:43,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:43,326 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 18:47:43,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:44,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081521986] [2020-12-09 18:47:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:47:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:47:44,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 18:47:44,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:47:44,216 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:47:44,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:47:44,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 18:47:44,248 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 18:47:44,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:47:45,087 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 18:47:45,087 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 18:47:45,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:47:45,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 18:47:45,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 5, 5, 14, 7] total 23 [2020-12-09 18:47:45,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896528288] [2020-12-09 18:47:45,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-12-09 18:47:45,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:47:45,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-12-09 18:47:45,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2020-12-09 18:47:45,106 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand 23 states. [2020-12-09 18:47:46,883 WARN L197 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 22 [2020-12-09 18:47:47,582 WARN L197 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-12-09 18:47:48,521 WARN L197 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-12-09 18:47:49,044 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2020-12-09 18:47:49,618 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-12-09 18:47:50,024 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2020-12-09 18:47:50,542 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2020-12-09 18:47:50,753 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2020-12-09 18:47:51,169 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 33 [2020-12-09 18:47:51,643 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 29 [2020-12-09 18:47:52,249 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2020-12-09 18:47:52,592 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 32 [2020-12-09 18:47:53,035 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 28 [2020-12-09 18:47:54,063 WARN L197 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 21 [2020-12-09 18:47:56,273 WARN L197 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 17 [2020-12-09 18:47:57,139 WARN L197 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 20 [2020-12-09 18:48:00,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:48:00,732 INFO L93 Difference]: Finished difference Result 177 states and 195 transitions. [2020-12-09 18:48:00,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-09 18:48:00,733 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-12-09 18:48:00,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:48:00,734 INFO L225 Difference]: With dead ends: 177 [2020-12-09 18:48:00,734 INFO L226 Difference]: Without dead ends: 171 [2020-12-09 18:48:00,735 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 136 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=724, Invalid=1826, Unknown=0, NotChecked=0, Total=2550 [2020-12-09 18:48:00,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-09 18:48:00,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 47. [2020-12-09 18:48:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-09 18:48:00,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-12-09 18:48:00,744 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 25 [2020-12-09 18:48:00,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:48:00,745 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-12-09 18:48:00,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-12-09 18:48:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-12-09 18:48:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 18:48:00,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:48:00,745 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:48:01,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt,6 mathsat -unsat_core_generation=3,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:48:01,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:48:01,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:48:01,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1755069467, now seen corresponding path program 1 times [2020-12-09 18:48:01,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:48:01,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393950349] [2020-12-09 18:48:01,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 18:48:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:48:01,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 18:48:01,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:48:02,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:48:02,065 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:48:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:02,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:48:03,046 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 18:48:05,605 WARN L197 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 18:48:09,198 WARN L197 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 18:48:10,851 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 18:48:10,867 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:10,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393950349] [2020-12-09 18:48:10,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [305406572] [2020-12-09 18:48:10,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 18:48:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:48:11,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-09 18:48:11,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:48:12,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:48:12,693 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:48:12,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:12,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:48:12,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:12,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082989523] [2020-12-09 18:48:12,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:48:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:48:12,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-09 18:48:12,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:48:13,396 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-09 18:48:13,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:48:13,561 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 18:48:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:13,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:48:17,288 WARN L197 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 18:48:17,292 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 18:48:17,293 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 18:48:21,254 WARN L197 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 18:48:25,274 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 18:48:25,278 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 18:48:25,278 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 18:48:29,400 WARN L197 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 18:48:30,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:48:30,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 18:48:30,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 11, 7, 14, 11] total 26 [2020-12-09 18:48:30,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852848869] [2020-12-09 18:48:30,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-12-09 18:48:30,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:48:30,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-12-09 18:48:30,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=510, Unknown=0, NotChecked=0, Total=650 [2020-12-09 18:48:30,811 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 26 states. [2020-12-09 18:48:36,107 WARN L197 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-12-09 18:48:37,557 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-12-09 18:48:37,878 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2020-12-09 18:48:38,176 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 31 [2020-12-09 18:48:40,246 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-12-09 18:48:55,322 WARN L197 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2020-12-09 18:49:00,880 WARN L197 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 19 [2020-12-09 18:49:04,267 WARN L197 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 22 [2020-12-09 18:49:07,227 WARN L197 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-12-09 18:49:13,024 WARN L197 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 43 DAG size of output: 25 [2020-12-09 18:49:15,831 WARN L197 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 46 DAG size of output: 28 [2020-12-09 18:49:32,738 WARN L197 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 50 DAG size of output: 32 [2020-12-09 18:49:35,599 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 51 DAG size of output: 33 [2020-12-09 18:49:38,222 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-12-09 18:49:40,918 WARN L197 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-12-09 18:49:41,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:49:41,144 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions. [2020-12-09 18:49:41,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 18:49:41,156 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 26 [2020-12-09 18:49:41,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:49:41,157 INFO L225 Difference]: With dead ends: 96 [2020-12-09 18:49:41,157 INFO L226 Difference]: Without dead ends: 61 [2020-12-09 18:49:41,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 120 SyntacticMatches, 8 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 58.5s TimeCoverageRelationStatistics Valid=572, Invalid=1320, Unknown=0, NotChecked=0, Total=1892 [2020-12-09 18:49:41,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-12-09 18:49:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 46. [2020-12-09 18:49:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-09 18:49:41,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-12-09 18:49:41,167 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 26 [2020-12-09 18:49:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:49:41,167 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-12-09 18:49:41,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-12-09 18:49:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-12-09 18:49:41,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-09 18:49:41,168 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:49:41,168 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:49:41,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:49:41,772 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:49:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:49:41,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1267754724, now seen corresponding path program 1 times [2020-12-09 18:49:41,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:49:41,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102964415] [2020-12-09 18:49:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 18:49:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:49:42,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:49:42,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:49:42,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:49:42,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:49:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 18:49:42,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:49:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 18:49:42,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102964415] [2020-12-09 18:49:42,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1580985658] [2020-12-09 18:49:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 18:49:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:49:42,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 18:49:42,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:49:43,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 18:49:43,426 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 18:49:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:49:43,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:49:43,638 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:49:43,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643483189] [2020-12-09 18:49:43,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a2f2533-7259-4128-881c-ab911e6ccce3/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 18:49:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:49:43,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 18:49:43,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:49:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 18:49:43,882 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 18:49:43,911 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-09 18:49:43,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 18:49:43,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 7, 6, 6] total 17 [2020-12-09 18:49:43,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461023651] [2020-12-09 18:49:43,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 18:49:43,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:49:43,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 18:49:43,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-12-09 18:49:43,913 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 17 states. [2020-12-09 18:49:46,234 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-12-09 18:49:49,350 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2020-12-09 18:49:49,639 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-12-09 18:49:50,223 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 25 [2020-12-09 18:49:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:49:50,976 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2020-12-09 18:49:50,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-09 18:49:50,977 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 42 [2020-12-09 18:49:50,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:49:50,978 INFO L225 Difference]: With dead ends: 74 [2020-12-09 18:49:50,978 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:49:50,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 231 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=424, Invalid=1216, Unknown=0, NotChecked=0, Total=1640 [2020-12-09 18:49:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:49:50,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:49:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:49:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:49:50,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2020-12-09 18:49:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:49:50,979 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:49:50,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 18:49:50,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:49:50,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:49:51,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 18:49:51,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:49:54,888 WARN L197 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2020-12-09 18:50:17,062 WARN L197 SmtUtils]: Spent 22.17 s on a formula simplification. DAG size of input: 84 DAG size of output: 32 [2020-12-09 18:50:28,614 WARN L197 SmtUtils]: Spent 11.55 s on a formula simplification. DAG size of input: 84 DAG size of output: 33 [2020-12-09 18:50:31,933 WARN L197 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 69 DAG size of output: 28 [2020-12-09 18:50:37,295 WARN L197 SmtUtils]: Spent 5.36 s on a formula simplification. DAG size of input: 82 DAG size of output: 40 [2020-12-09 18:50:45,855 WARN L197 SmtUtils]: Spent 8.56 s on a formula simplification. DAG size of input: 87 DAG size of output: 33 [2020-12-09 18:52:07,437 WARN L197 SmtUtils]: Spent 1.36 m on a formula simplification. DAG size of input: 85 DAG size of output: 41 [2020-12-09 18:52:13,581 WARN L197 SmtUtils]: Spent 6.14 s on a formula simplification. DAG size of input: 83 DAG size of output: 40 [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 13) no Hoare annotation was computed. [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,583 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L12-4(line 12) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L258 CegarLoopResult]: At program point L38-2(lines 38 62) the Hoare annotation is: (let ((.cse7 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse0 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse1 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse5 (bvmul ULTIMATE.start_main_~q~0 .cse7)) (.cse2 (bvmul ULTIMATE.start_main_~a~0 .cse7)) (.cse3 (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32))) (.cse4 ((_ sign_extend 32) ULTIMATE.start_main_~x~0))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= .cse2 ULTIMATE.start_main_~b~0) .cse3 (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) (= .cse4 (bvadd .cse5 ULTIMATE.start_main_~r~0))) (let ((.cse6 ((_ sign_extend 32) (_ bv0 32)))) (and (= .cse6 ULTIMATE.start_main_~q~0) .cse0 .cse1 (= (bvadd .cse5 ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) .cse2) .cse4) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 32))) (and (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~r~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) .cse3 (= .cse6 ULTIMATE.start_main_~a~0) (= .cse4 ULTIMATE.start_main_~r~0)))))) [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L38-3(lines 38 62) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L258 CegarLoopResult]: At program point L47-2(lines 47 59) the Hoare annotation is: (let ((.cse3 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (exists ((ULTIMATE.start_main_~y~0 (_ BitVec 32))) (and (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~r~0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)))) (let ((.cse0 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse1 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse2 (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32))) (.cse4 (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0 .cse1 .cse2 (= (bvmul ULTIMATE.start_main_~a~0 .cse3) ULTIMATE.start_main_~b~0) .cse4) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~a~0 ((_ sign_extend 32) (_ bv1 32))) .cse0 .cse1 .cse2 (= .cse3 ULTIMATE.start_main_~b~0) .cse4))) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse3) ULTIMATE.start_main_~r~0)))) [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L47-3(lines 47 59) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,584 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L258 CegarLoopResult]: At program point L15-2(lines 14 20) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= (bvmul ULTIMATE.start_main_~a~0 .cse0) ULTIMATE.start_main_~b~0) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse0) ULTIMATE.start_main_~r~0)))) [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L258 CegarLoopResult]: At program point L15-5(lines 42 43) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= (bvmul ULTIMATE.start_main_~a~0 .cse0) ULTIMATE.start_main_~b~0) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse0) ULTIMATE.start_main_~r~0)))) [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L15-6(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L258 CegarLoopResult]: At program point L15-8(lines 14 20) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~y~0 (_ BitVec 32))) (and (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~r~0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)))) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= (bvmul ULTIMATE.start_main_~a~0 .cse0) ULTIMATE.start_main_~b~0) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse0) ULTIMATE.start_main_~r~0)) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L15-9(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L258 CegarLoopResult]: At program point L15-11(lines 14 20) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~y~0 (_ BitVec 32))) (and (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~r~0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)))) (let ((.cse9 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (let ((.cse6 ((_ sign_extend 32) ULTIMATE.start_main_~x~0)) (.cse4 (bvmul ULTIMATE.start_main_~q~0 .cse9))) (let ((.cse0 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse2 (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32))) (.cse3 (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32))) (.cse5 (bvmul ULTIMATE.start_main_~a~0 .cse9)) (.cse7 (= .cse6 (bvadd .cse4 ULTIMATE.start_main_~r~0))) (.cse8 (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (= (bvadd .cse4 ULTIMATE.start_main_~r~0 (bvneg ULTIMATE.start_main_~b~0) .cse5) .cse6) .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse3 (bvsge ULTIMATE.start_main_~r~0 (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~b~0)) (= .cse5 ULTIMATE.start_main_~b~0) .cse7 .cse8))))) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32))) [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L15-12(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L258 CegarLoopResult]: At program point L15-14(lines 52 53) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~y~0 (_ BitVec 32))) (and (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~r~0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)))) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= (bvmul ULTIMATE.start_main_~a~0 .cse0) ULTIMATE.start_main_~b~0) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse0) ULTIMATE.start_main_~r~0)) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) [2020-12-09 18:52:13,585 INFO L265 CegarLoopResult]: At program point L65(lines 22 66) the Hoare annotation is: true [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L15-15(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,585 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L258 CegarLoopResult]: At program point L15-17(lines 14 20) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0))) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (exists ((ULTIMATE.start_main_~y~0 (_ BitVec 32))) (and (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (bvsge ULTIMATE.start_main_~r~0 ((_ sign_extend 32) ULTIMATE.start_main_~y~0)))) (bvsge ULTIMATE.start_main_~y~0 (_ bv1 32)) (bvsle ULTIMATE.start_main_~x~0 (_ bv5 32)) (= (bvmul ULTIMATE.start_main_~a~0 .cse0) ULTIMATE.start_main_~b~0) (bvsle ULTIMATE.start_main_~y~0 (_ bv5 32)) (= ((_ sign_extend 32) ULTIMATE.start_main_~x~0) (bvadd (bvmul ULTIMATE.start_main_~q~0 .cse0) ULTIMATE.start_main_~r~0)) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)))) [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L15-18(lines 15 18) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L265 CegarLoopResult]: At program point L15-20(lines 14 20) the Hoare annotation is: true [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-2(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-3(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-4(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-5(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point L16-6(lines 16 17) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:52:13,586 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 18:52:13,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,598 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,599 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,600 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,601 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,603 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.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 18:52:13,606 INFO L168 Benchmark]: Toolchain (without parser) took 282383.76 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 33.9 MB in the beginning and 28.8 MB in the end (delta: 5.1 MB). Peak memory consumption was 41.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:52:13,606 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:52:13,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.90 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 38.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 18:52:13,607 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 38.5 MB in the beginning and 65.6 MB in the end (delta: -27.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:52:13,607 INFO L168 Benchmark]: Boogie Preprocessor took 22.00 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 64.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:52:13,607 INFO L168 Benchmark]: RCFGBuilder took 624.86 ms. Allocated memory is still 81.8 MB. Free memory was 64.3 MB in the beginning and 47.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:52:13,608 INFO L168 Benchmark]: TraceAbstraction took 281503.92 ms. Allocated memory is still 81.8 MB. Free memory was 46.4 MB in the beginning and 28.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:52:13,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 73.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 181.90 ms. Allocated memory is still 54.5 MB. Free memory was 33.8 MB in the beginning and 38.5 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.86 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 38.5 MB in the beginning and 65.6 MB in the end (delta: -27.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.00 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 64.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 624.86 ms. Allocated memory is still 81.8 MB. Free memory was 64.3 MB in the beginning and 47.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 281503.92 ms. Allocated memory is still 81.8 MB. Free memory was 46.4 MB in the beginning and 28.8 MB in the end (delta: 17.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: 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 7 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: ((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsle32(y, 5bv32)) && ~bvsge64(x, 0bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,616 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] Derived loop invariant: (((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && (\exists ULTIMATE.start_main_~y~0 : bv32 :: (~bvsge64(ULTIMATE.start_main_~y~0, 0bv32) && ~bvsle32(ULTIMATE.start_main_~y~0, 5bv32)) && ~bvsge64(r, ~sign_extendFrom8To32(ULTIMATE.start_main_~y~0)))) && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsle32(y, 5bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r)) && ~bvsge64(x, 0bv32) - InvariantResult [Line: 14]: Loop Invariant [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,617 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] Derived loop invariant: (((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && (\exists ULTIMATE.start_main_~y~0 : bv32 :: (~bvsge64(ULTIMATE.start_main_~y~0, 0bv32) && ~bvsle32(ULTIMATE.start_main_~y~0, 5bv32)) && ~bvsge64(r, ~sign_extendFrom8To32(ULTIMATE.start_main_~y~0)))) && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsle32(y, 5bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r)) && ~bvsge64(x, 0bv32) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsle32(y, 5bv32)) && ~bvsge64(x, 0bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r) - InvariantResult [Line: 47]: Loop Invariant [2020-12-09 18:52:13,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,618 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_main_~y~0 : bv32 :: (~bvsge64(ULTIMATE.start_main_~y~0, 0bv32) && ~bvsle32(ULTIMATE.start_main_~y~0, 5bv32)) && ~bvsge64(r, ~sign_extendFrom8To32(ULTIMATE.start_main_~y~0))) && ((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsge64(x, 0bv32)) || ((((((!(cond == 0bv32) && a == ~sign_extendFrom8To32(1bv32)) && 1bv32 == cond) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~sign_extendFrom8To32(y) == b) && ~bvsge64(x, 0bv32)))) && ~bvsle32(y, 5bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r) - InvariantResult [Line: 14]: Loop Invariant [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,619 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] [2020-12-09 18:52:13,620 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~y~0,QUANTIFIED] Derived loop invariant: (((((((~bvadd16(cond, 4294967295bv32) == 0bv32 && 1bv32 == cond) && (\exists ULTIMATE.start_main_~y~0 : bv32 :: (~bvsge64(ULTIMATE.start_main_~y~0, 0bv32) && ~bvsle32(ULTIMATE.start_main_~y~0, 5bv32)) && ~bvsge64(r, ~sign_extendFrom8To32(ULTIMATE.start_main_~y~0)))) && ~bvsge64(y, 1bv32)) && ~bvsle32(x, 5bv32)) && ~bvmul64(a, ~sign_extendFrom8To32(y)) == b) && ~bvsle32(y, 5bv32)) && ~sign_extendFrom8To32(x) == ~bvadd16(~bvmul64(q, ~sign_extendFrom8To32(y)), r)) && ~bvsge64(x, 0bv32) - 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...