./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur --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 1c592bb1d39faa1e5f3d20603a8bfbb8fe6cff4de59ea35fafbddd50b8917b41 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:22:14,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:22:14,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:22:14,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:22:14,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:22:14,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:22:14,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:22:14,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:22:14,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:22:14,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:22:14,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:22:14,799 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:22:14,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:22:14,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:22:14,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:22:14,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:22:14,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:22:14,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:22:14,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:22:14,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:22:14,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:22:14,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:22:14,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:22:14,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:22:14,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:22:14,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:22:14,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:22:14,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:22:14,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:22:14,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:22:14,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:22:14,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:22:14,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:22:14,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:22:14,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:22:14,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:22:14,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:22:14,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:22:14,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:22:14,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:22:14,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:22:14,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:22:14,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:22:14,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:22:14,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:22:14,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:22:14,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:22:14,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:22:14,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:22:14,877 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:22:14,877 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:22:14,877 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:22:14,878 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:22:14,878 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:22:14,878 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:22:14,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:22:14,879 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:22:14,879 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:22:14,879 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:22:14,880 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:22:14,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:22:14,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:22:14,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:22:14,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:22:14,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:22:14,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:22:14,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:22:14,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:22:14,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:22:14,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:22:14,883 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:22:14,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:22:14,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:22:14,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:22:14,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:14,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:22:14,885 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:22:14,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:22:14,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:22:14,886 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:22:14,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:22:14,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:22:14,887 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:22:14,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c592bb1d39faa1e5f3d20603a8bfbb8fe6cff4de59ea35fafbddd50b8917b41 [2022-11-25 23:22:15,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:22:15,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:22:15,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:22:15,286 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:22:15,287 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:22:15,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/forester-heap/dll-optional-1.i [2022-11-25 23:22:18,594 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:22:18,990 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:22:18,991 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/sv-benchmarks/c/forester-heap/dll-optional-1.i [2022-11-25 23:22:19,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/data/bd01d9ad8/5842cf7d49e4482997e89ed94f5e8726/FLAGb71fce02e [2022-11-25 23:22:19,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/data/bd01d9ad8/5842cf7d49e4482997e89ed94f5e8726 [2022-11-25 23:22:19,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:22:19,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:22:19,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:19,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:22:19,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:22:19,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c4b068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19, skipping insertion in model container [2022-11-25 23:22:19,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:22:19,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:22:19,533 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/sv-benchmarks/c/forester-heap/dll-optional-1.i[22753,22766] [2022-11-25 23:22:19,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:19,554 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:22:19,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/sv-benchmarks/c/forester-heap/dll-optional-1.i[22753,22766] [2022-11-25 23:22:19,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:22:19,630 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:22:19,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19 WrapperNode [2022-11-25 23:22:19,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:22:19,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:19,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:22:19,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:22:19,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,683 INFO L138 Inliner]: procedures = 119, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 134 [2022-11-25 23:22:19,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:22:19,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:22:19,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:22:19,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:22:19,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:22:19,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:22:19,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:22:19,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:22:19,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (1/1) ... [2022-11-25 23:22:19,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:22:19,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:19,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:22:19,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:22:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:22:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:22:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:22:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:22:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:22:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:22:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:22:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:22:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:22:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:22:20,050 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:22:20,052 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:22:20,496 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:22:20,774 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:22:20,774 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-25 23:22:20,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:20 BoogieIcfgContainer [2022-11-25 23:22:20,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:22:20,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:22:20,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:22:20,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:22:20,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:22:19" (1/3) ... [2022-11-25 23:22:20,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0c026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:20, skipping insertion in model container [2022-11-25 23:22:20,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:22:19" (2/3) ... [2022-11-25 23:22:20,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0c026c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:22:20, skipping insertion in model container [2022-11-25 23:22:20,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:22:20" (3/3) ... [2022-11-25 23:22:20,800 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-optional-1.i [2022-11-25 23:22:20,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:22:20,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:22:20,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:22:20,908 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b9314d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:22:20,908 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:22:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:20,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:22:20,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:20,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:20,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:20,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1506082116, now seen corresponding path program 1 times [2022-11-25 23:22:20,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:20,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699226178] [2022-11-25 23:22:20,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:20,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:21,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:21,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699226178] [2022-11-25 23:22:21,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699226178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:21,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:21,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:22:21,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307476097] [2022-11-25 23:22:21,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:21,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:22:21,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:21,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:22:21,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:22:21,487 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:21,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:21,734 INFO L93 Difference]: Finished difference Result 23 states and 33 transitions. [2022-11-25 23:22:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:22:21,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-25 23:22:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:21,745 INFO L225 Difference]: With dead ends: 23 [2022-11-25 23:22:21,746 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:22:21,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:22:21,753 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:21,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 23:22:21,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:22:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-25 23:22:21,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:21,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-25 23:22:21,791 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2022-11-25 23:22:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:21,791 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-25 23:22:21,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-25 23:22:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:22:21,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:21,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:21,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:22:21,794 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:21,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:21,795 INFO L85 PathProgramCache]: Analyzing trace with hash 151022748, now seen corresponding path program 1 times [2022-11-25 23:22:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:21,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837076148] [2022-11-25 23:22:21,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:21,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:24,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:24,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:24,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837076148] [2022-11-25 23:22:24,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837076148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:22:24,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:22:24,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:22:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925529880] [2022-11-25 23:22:24,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:22:24,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:22:24,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:22:24,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:22:24,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:22:24,091 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:25,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:22:25,755 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-11-25 23:22:25,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:22:25,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 23:22:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:22:25,756 INFO L225 Difference]: With dead ends: 28 [2022-11-25 23:22:25,757 INFO L226 Difference]: Without dead ends: 26 [2022-11-25 23:22:25,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:22:25,759 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 20 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:22:25,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 27 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-25 23:22:25,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-25 23:22:25,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 17. [2022-11-25 23:22:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:25,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-25 23:22:25,769 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 8 [2022-11-25 23:22:25,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:22:25,769 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-25 23:22:25,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:22:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-25 23:22:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:22:25,771 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:22:25,771 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:22:25,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:22:25,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:22:25,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:22:25,772 INFO L85 PathProgramCache]: Analyzing trace with hash -507493554, now seen corresponding path program 1 times [2022-11-25 23:22:25,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:22:25,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774723529] [2022-11-25 23:22:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:25,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:22:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:22:35,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:22:35,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774723529] [2022-11-25 23:22:35,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774723529] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:22:35,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9815978] [2022-11-25 23:22:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:22:35,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:22:35,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:22:35,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:22:35,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c8bca11-62f5-44de-87fe-88ff75a9dfd0/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:22:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:22:35,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 158 conjunts are in the unsatisfiable core [2022-11-25 23:22:35,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:22:36,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-11-25 23:22:36,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-25 23:22:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:36,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:22:36,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2022-11-25 23:22:36,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:36,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:36,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-11-25 23:22:36,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:36,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:36,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-11-25 23:22:36,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 23:22:36,160 INFO L321 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2022-11-25 23:22:36,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2022-11-25 23:22:36,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2022-11-25 23:22:36,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2022-11-25 23:22:36,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:22:36,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:22:36,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 111 [2022-11-25 23:22:36,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 105 [2022-11-25 23:22:36,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 99 [2022-11-25 23:22:36,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2022-11-25 23:22:36,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:22:36,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2022-11-25 23:22:36,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:22:36,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 56 [2022-11-25 23:22:36,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 38 [2022-11-25 23:22:36,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-11-25 23:22:36,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-25 23:22:36,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 23:22:36,677 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:22:37,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:37,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1031 treesize of output 1017 [2022-11-25 23:22:37,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:37,357 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-25 23:22:37,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 336 [2022-11-25 23:22:37,472 INFO L321 Elim1Store]: treesize reduction 112, result has 8.9 percent of original size [2022-11-25 23:22:37,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 464 treesize of output 452 [2022-11-25 23:22:37,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:37,544 INFO L321 Elim1Store]: treesize reduction 25, result has 47.9 percent of original size [2022-11-25 23:22:37,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 411 treesize of output 404 [2022-11-25 23:22:37,624 INFO L321 Elim1Store]: treesize reduction 77, result has 6.1 percent of original size [2022-11-25 23:22:37,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 377 treesize of output 434 [2022-11-25 23:22:37,745 INFO L321 Elim1Store]: treesize reduction 232, result has 6.8 percent of original size [2022-11-25 23:22:37,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 386 treesize of output 442 [2022-11-25 23:22:38,026 INFO L321 Elim1Store]: treesize reduction 248, result has 29.7 percent of original size [2022-11-25 23:22:38,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 345 treesize of output 447 [2022-11-25 23:22:38,130 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-25 23:22:38,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 280 [2022-11-25 23:22:40,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:40,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:40,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:40,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:41,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:41,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:41,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:41,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:41,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 16 [2022-11-25 23:22:42,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-25 23:22:42,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-25 23:22:42,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:42,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:22:42,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:22:42,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 23:22:42,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-25 23:22:42,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2022-11-25 23:22:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:42,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:22:43,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-25 23:22:43,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:22:43,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:22:43,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 101 [2022-11-25 23:22:43,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 1074 treesize of output 1266 [2022-11-25 23:22:43,883 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-11-25 23:22:43,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1064 treesize of output 1262 [2022-11-25 23:22:44,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1152 treesize of output 1280 [2022-11-25 23:22:56,305 INFO L321 Elim1Store]: treesize reduction 76, result has 39.7 percent of original size [2022-11-25 23:22:56,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1470 treesize of output 1596 [2022-11-25 23:22:57,777 INFO L321 Elim1Store]: treesize reduction 76, result has 39.7 percent of original size [2022-11-25 23:22:57,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1380 treesize of output 1506 [2022-11-25 23:23:00,120 INFO L321 Elim1Store]: treesize reduction 76, result has 39.7 percent of original size [2022-11-25 23:23:00,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1290 treesize of output 1416 [2022-11-25 23:23:05,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:23:05,176 INFO L321 Elim1Store]: treesize reduction 120, result has 10.4 percent of original size [2022-11-25 23:23:05,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 247 treesize of output 262 [2022-11-25 23:23:06,703 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:23:06,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:23:11,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:23:11,980 INFO L321 Elim1Store]: treesize reduction 110, result has 0.9 percent of original size [2022-11-25 23:23:11,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 133 treesize of output 122 [2022-11-25 23:23:12,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:23:12,491 INFO L321 Elim1Store]: treesize reduction 110, result has 0.9 percent of original size [2022-11-25 23:23:12,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 133 treesize of output 122 [2022-11-25 23:23:12,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:23:12,683 INFO L321 Elim1Store]: treesize reduction 110, result has 0.9 percent of original size [2022-11-25 23:23:12,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 133 treesize of output 122 [2022-11-25 23:23:12,804 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-25 23:23:12,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 15 [2022-11-25 23:23:13,061 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-25 23:23:13,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 15 [2022-11-25 23:23:13,201 INFO L321 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2022-11-25 23:23:13,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 15 [2022-11-25 23:23:13,695 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:23:13,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:23:13,948 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:23:13,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:23:14,279 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:23:14,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-11-25 23:23:24,783 WARN L233 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 207 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:23:24,785 INFO L321 Elim1Store]: treesize reduction 788, result has 28.8 percent of original size [2022-11-25 23:23:24,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 13 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 15 new quantified variables, introduced 54 case distinctions, treesize of input 7053657 treesize of output 859048 [2022-11-25 23:23:33,071 WARN L233 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 3438 DAG size of output: 3436 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 23:24:11,266 WARN L233 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 23:24:44,843 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)