./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P --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 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:01:45,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:01:45,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:01:45,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:01:45,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:01:45,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:01:45,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:01:45,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:01:45,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:01:45,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:01:45,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:01:45,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:01:45,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:01:45,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:01:45,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:01:45,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:01:45,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:01:45,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:01:45,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:01:45,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:01:45,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:01:45,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:01:45,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:01:45,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:01:45,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:01:45,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:01:45,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:01:45,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:01:45,792 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:01:45,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:01:45,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:01:45,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:01:45,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:01:45,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:01:45,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:01:45,803 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:01:45,804 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:01:45,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:01:45,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:01:45,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:01:45,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:01:45,808 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:01:45,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:01:45,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:01:45,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:01:45,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:01:45,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:01:45,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:01:45,865 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:01:45,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:01:45,866 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:01:45,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:01:45,866 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:01:45,866 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:01:45,866 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:01:45,867 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:01:45,867 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:01:45,867 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:01:45,867 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:01:45,867 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:01:45,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:01:45,868 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:01:45,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:01:45,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:01:45,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:01:45,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:01:45,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:01:45,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:01:45,870 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:01:45,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:01:45,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:01:45,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:01:45,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:01:45,872 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_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 470d7065e9fd450e98d72326ef313763cf0710ea45f0a443b018e8a49bdf7927 [2021-11-21 01:01:46,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:01:46,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:01:46,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:01:46,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:01:46,137 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:01:46,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2021-11-21 01:01:46,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/data/00698fed4/ea650bb0fd754c568d09d2678e2d8e63/FLAG0946aa3a9 [2021-11-21 01:01:46,837 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:01:46,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i [2021-11-21 01:01:46,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/data/00698fed4/ea650bb0fd754c568d09d2678e2d8e63/FLAG0946aa3a9 [2021-11-21 01:01:47,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/data/00698fed4/ea650bb0fd754c568d09d2678e2d8e63 [2021-11-21 01:01:47,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:01:47,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:01:47,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:01:47,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:01:47,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:01:47,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:47,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2640b9d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47, skipping insertion in model container [2021-11-21 01:01:47,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:47,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:01:47,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:01:47,593 WARN L230 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_d1e0edc5-29a8-4296-b064-b792de1ec143/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2021-11-21 01:01:47,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:01:47,715 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:01:47,775 WARN L230 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_d1e0edc5-29a8-4296-b064-b792de1ec143/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-1.i[33021,33034] [2021-11-21 01:01:47,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:01:47,878 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:01:47,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47 WrapperNode [2021-11-21 01:01:47,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:01:47,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:01:47,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:01:47,880 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:01:47,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:47,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:47,981 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-21 01:01:47,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:01:47,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:01:47,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:01:47,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:01:47,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:47,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:01:48,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:01:48,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:01:48,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:01:48,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (1/1) ... [2021-11-21 01:01:48,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:01:48,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:01:48,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:01:48,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:01:48,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:01:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:01:48,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:01:48,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:01:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:01:48,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:01:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:01:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:01:48,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:01:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:01:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:01:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:01:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:01:48,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:01:48,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:01:48,414 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:01:48,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:01:49,241 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:01:49,553 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:01:49,554 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-21 01:01:49,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:01:49 BoogieIcfgContainer [2021-11-21 01:01:49,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:01:49,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:01:49,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:01:49,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:01:49,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:01:47" (1/3) ... [2021-11-21 01:01:49,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fca5047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:01:49, skipping insertion in model container [2021-11-21 01:01:49,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:01:47" (2/3) ... [2021-11-21 01:01:49,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fca5047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:01:49, skipping insertion in model container [2021-11-21 01:01:49,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:01:49" (3/3) ... [2021-11-21 01:01:49,568 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-1.i [2021-11-21 01:01:49,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:01:49,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:01:49,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:01:49,635 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:01:49,636 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:01:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:01:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:01:49,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:49,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:01:49,667 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:01:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-21 01:01:49,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696856889] [2021-11-21 01:01:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:49,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:01:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:01:49,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:01:49,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696856889] [2021-11-21 01:01:49,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696856889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:01:49,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:01:49,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:01:49,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475077335] [2021-11-21 01:01:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:01:49,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:01:49,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:01:49,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:01:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:01:49,881 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:01:51,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:01:51,107 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-21 01:01:51,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:01:51,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:01:51,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:01:51,131 INFO L225 Difference]: With dead ends: 209 [2021-11-21 01:01:51,131 INFO L226 Difference]: Without dead ends: 128 [2021-11-21 01:01:51,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:01:51,138 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:01:51,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 01:01:51,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-21 01:01:51,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-21 01:01:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:01:51,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-21 01:01:51,187 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-21 01:01:51,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:01:51,188 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-21 01:01:51,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:01:51,188 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-21 01:01:51,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:01:51,190 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:51,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:01:51,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:01:51,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:01:51,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:51,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-21 01:01:51,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:51,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636275426] [2021-11-21 01:01:51,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:51,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:51,212 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:01:51,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141647004] [2021-11-21 01:01:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:51,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:01:51,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:01:51,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:01:51,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:01:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:01:51,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:01:51,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:01:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:01:51,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:01:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:01:51,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:01:51,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636275426] [2021-11-21 01:01:51,784 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:01:51,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141647004] [2021-11-21 01:01:51,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141647004] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:01:51,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1956165502] [2021-11-21 01:01:51,825 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-21 01:01:51,826 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:01:51,830 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:01:51,836 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:01:51,836 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:01:51,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:51,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 7 [2021-11-21 01:01:52,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:52,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 7 [2021-11-21 01:01:52,045 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:01:52,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:01:52,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:52,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:01:52,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:52,095 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:01:52,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:01:52,171 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:01:52,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:01:53,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:53,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:01:53,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:53,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:01:54,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:01:54,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:01:54,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:54,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:54,637 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:01:55,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1956165502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:01:55,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:01:55,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-21 01:01:55,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129083136] [2021-11-21 01:01:55,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:01:55,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:01:55,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:01:55,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:01:55,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:01:55,222 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:01:57,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:01:57,334 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-21 01:01:57,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:01:57,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-21 01:01:57,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:01:57,344 INFO L225 Difference]: With dead ends: 173 [2021-11-21 01:01:57,344 INFO L226 Difference]: Without dead ends: 94 [2021-11-21 01:01:57,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:01:57,347 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:01:57,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:01:57,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-21 01:01:57,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-21 01:01:57,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:01:57,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-21 01:01:57,363 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-21 01:01:57,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:01:57,363 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-21 01:01:57,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:01:57,364 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 01:01:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:01:57,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:01:57,366 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:01:57,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:01:57,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:01:57,593 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:01:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:01:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-21 01:01:57,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:01:57,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563114379] [2021-11-21 01:01:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:57,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:01:57,605 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:01:57,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193932077] [2021-11-21 01:01:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:01:57,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:01:57,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:01:57,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:01:57,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:01:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:01:57,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:01:57,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:01:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:01:57,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:01:58,087 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:01:58,087 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:01:58,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563114379] [2021-11-21 01:01:58,087 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:01:58,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193932077] [2021-11-21 01:01:58,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193932077] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:01:58,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [205974878] [2021-11-21 01:01:58,091 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:01:58,091 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:01:58,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:01:58,092 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:01:58,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:01:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:58,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 7 [2021-11-21 01:01:58,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:58,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:01:58,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:58,201 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:01:58,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:01:58,265 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:01:58,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:01:58,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:58,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:01:58,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:01:59,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:59,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:01:59,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:01:59,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:01:59,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:01:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:01:59,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:01:59,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:01:59,743 INFO L354 Elim1Store]: treesize reduction 94, result has 14.5 percent of original size [2021-11-21 01:01:59,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:01:59,808 INFO L354 Elim1Store]: treesize reduction 184, result has 10.2 percent of original size [2021-11-21 01:01:59,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:01:59,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:01:59,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:01:59,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:02:01,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:02:01,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:01,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:02:02,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:02:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:02:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:02:02,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:02:02,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:02:02,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:02:02,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:02:02,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,431 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:02:02,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:02:02,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:02:02,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,577 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:02:02,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:02:02,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:02,622 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:02:02,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:02:02,884 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-21 01:02:03,072 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:02:03,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [205974878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:02:03,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:02:03,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-21 01:02:03,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215652122] [2021-11-21 01:02:03,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:02:03,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:02:03,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:02:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:02:03,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:02:03,987 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:02:06,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:02:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:02:07,851 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-21 01:02:07,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:02:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-21 01:02:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:02:07,865 INFO L225 Difference]: With dead ends: 175 [2021-11-21 01:02:07,865 INFO L226 Difference]: Without dead ends: 96 [2021-11-21 01:02:07,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:02:07,867 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:02:07,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 104 Invalid, 1 Unknown, 53 Unchecked, 3.8s Time] [2021-11-21 01:02:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-21 01:02:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-21 01:02:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:02:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-21 01:02:07,883 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-21 01:02:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:02:07,883 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-21 01:02:07,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:02:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-21 01:02:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:02:07,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:02:07,886 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:02:07,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:02:08,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:02:08,088 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:02:08,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:02:08,089 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-21 01:02:08,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:02:08,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111487166] [2021-11-21 01:02:08,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:02:08,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:02:08,102 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:02:08,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909661480] [2021-11-21 01:02:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:02:08,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:02:08,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:02:08,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:02:08,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1e0edc5-29a8-4296-b064-b792de1ec143/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:02:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:02:08,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:02:08,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:02:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:02:08,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:02:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:02:08,514 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:02:08,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111487166] [2021-11-21 01:02:08,514 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:02:08,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909661480] [2021-11-21 01:02:08,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909661480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:02:08,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266601812] [2021-11-21 01:02:08,518 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:02:08,518 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:02:08,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:02:08,519 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:02:08,519 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:02:08,609 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:02:08,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:02:08,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:02:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:08,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 7 [2021-11-21 01:02:08,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:08,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:02:08,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-21 01:02:08,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:08,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 7 [2021-11-21 01:02:09,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:02:09,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:02:09,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:02:09,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-21 01:02:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:02:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:02:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:02:09,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:02:09,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,945 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:02:09,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:02:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:09,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:02:10,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,100 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:02:10,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:02:10,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,144 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:02:10,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:02:10,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:02:10,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:02:10,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:02:10,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:02:10,671 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:02:10,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-21 01:02:10,695 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:02:10,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-21 01:02:10,715 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:02:10,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-21 01:02:10,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:02:10,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:02:10,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 10 [2021-11-21 01:02:10,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:02:10,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:02:10,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:10,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:02:11,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:02:11,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:02:11,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:11,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:02:19,714 WARN L227 SmtUtils]: Spent 8.25s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:02:19,714 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:02:19,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-21 01:02:19,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:28,372 WARN L227 SmtUtils]: Spent 8.63s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:02:28,373 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:02:28,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-21 01:02:38,885 WARN L227 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:02:38,886 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:02:38,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-21 01:02:40,337 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:02:40,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:02:41,095 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:02:41,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:02:42,784 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:02:43,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:43,163 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:02:43,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:02:43,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:02:43,838 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:02:43,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46