./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:55:38,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:55:38,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:55:38,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:55:38,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:55:38,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:55:38,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:55:38,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:55:38,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:55:38,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:55:38,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:55:38,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:55:38,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:55:38,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:55:38,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:55:38,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:55:38,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:55:38,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:55:38,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:55:38,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:55:38,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:55:38,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:55:38,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:55:38,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:55:38,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:55:38,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:55:38,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:55:38,800 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:55:38,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:55:38,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:55:38,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:55:38,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:55:38,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:55:38,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:55:38,809 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:55:38,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:55:38,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:55:38,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:55:38,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:55:38,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:55:38,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:55:38,814 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:55:38,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:55:38,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:55:38,844 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:55:38,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:55:38,845 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:55:38,845 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:55:38,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:55:38,846 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:55:38,846 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:55:38,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:55:38,850 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:55:38,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:55:38,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:55:38,850 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:55:38,851 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:55:38,851 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:55:38,851 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:55:38,851 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:55:38,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:55:38,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:55:38,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:55:38,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:55:38,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:55:38,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:55:38,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:55:38,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:55:38,854 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:55:38,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:55:38,855 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:55:38,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:55:38,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:55:38,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:55:38,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:55:38,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:55:38,856 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:55:38,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:55:38,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:55:38,857 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:55:38,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:55:38,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:55:38,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:55:38,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dcad53e9f7fd6e0b6384d19db4719ec6aa2601fd94c6ce0d3c746f1ec6b3601 [2022-11-26 00:55:39,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:55:39,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:55:39,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:55:39,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:55:39,155 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:55:39,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2022-11-26 00:55:42,135 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:55:42,501 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:55:42,501 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i [2022-11-26 00:55:42,517 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/data/25bbced6b/6d215030458441d382e923c606168eab/FLAG90c07275b [2022-11-26 00:55:42,533 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/data/25bbced6b/6d215030458441d382e923c606168eab [2022-11-26 00:55:42,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:55:42,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:55:42,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:55:42,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:55:42,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:55:42,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:42" (1/1) ... [2022-11-26 00:55:42,557 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bdbc3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:42, skipping insertion in model container [2022-11-26 00:55:42,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:55:42" (1/1) ... [2022-11-26 00:55:42,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:55:42,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:55:43,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i[33021,33034] [2022-11-26 00:55:43,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:55:43,276 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:55:43,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-3.i[33021,33034] [2022-11-26 00:55:43,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:55:43,521 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:55:43,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43 WrapperNode [2022-11-26 00:55:43,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:55:43,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:55:43,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:55:43,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:55:43,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,640 INFO L138 Inliner]: procedures = 177, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1437 [2022-11-26 00:55:43,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:55:43,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:55:43,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:55:43,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:55:43,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:55:43,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:55:43,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:55:43,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:55:43,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (1/1) ... [2022-11-26 00:55:43,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:55:43,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:43,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:55:43,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:55:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:55:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:55:43,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:55:43,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:55:43,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:55:43,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:55:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:55:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:55:43,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:55:43,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:55:44,277 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:55:44,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:55:46,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:55:46,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:55:46,859 INFO L300 CfgBuilder]: Removed 77 assume(true) statements. [2022-11-26 00:55:46,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:46 BoogieIcfgContainer [2022-11-26 00:55:46,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:55:46,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:55:46,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:55:46,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:55:46,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:55:42" (1/3) ... [2022-11-26 00:55:46,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c16953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:46, skipping insertion in model container [2022-11-26 00:55:46,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:55:43" (2/3) ... [2022-11-26 00:55:46,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c16953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:55:46, skipping insertion in model container [2022-11-26 00:55:46,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:55:46" (3/3) ... [2022-11-26 00:55:46,877 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-3.i [2022-11-26 00:55:46,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:55:46,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:55:46,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:55:46,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@263aa912, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:55:46,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:55:46,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:55:46,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:55:46,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:46,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:46,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -810098709, now seen corresponding path program 1 times [2022-11-26 00:55:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:46,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044192216] [2022-11-26 00:55:46,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:46,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:47,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:47,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044192216] [2022-11-26 00:55:47,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044192216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:55:47,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:55:47,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:55:47,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859535844] [2022-11-26 00:55:47,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:55:47,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:55:47,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:55:47,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:55:47,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:55:47,250 INFO L87 Difference]: Start difference. First operand has 153 states, 133 states have (on average 1.7969924812030076) internal successors, (239), 144 states have internal predecessors, (239), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-11-26 00:55:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:55:49,829 INFO L93 Difference]: Finished difference Result 399 states and 722 transitions. [2022-11-26 00:55:49,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:55:49,837 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 [2022-11-26 00:55:49,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:55:49,846 INFO L225 Difference]: With dead ends: 399 [2022-11-26 00:55:49,847 INFO L226 Difference]: Without dead ends: 220 [2022-11-26 00:55:49,850 INFO L412 NwaCegarLoop]: 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 [2022-11-26 00:55:49,853 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 97 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:55:49,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 365 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-26 00:55:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-26 00:55:49,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-26 00:55:49,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:55:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-26 00:55:49,904 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-26 00:55:49,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:55:49,904 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-26 00:55:49,904 INFO L496 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) [2022-11-26 00:55:49,905 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-26 00:55:49,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-26 00:55:49,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:55:49,908 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:55:49,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:55:49,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:55:49,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:55:49,909 INFO L85 PathProgramCache]: Analyzing trace with hash 761830316, now seen corresponding path program 1 times [2022-11-26 00:55:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:55:49,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624407134] [2022-11-26 00:55:49,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:49,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:55:50,250 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:55:50,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117376591] [2022-11-26 00:55:50,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:55:50,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:55:50,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:55:50,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:55:50,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:55:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:55:51,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:55:51,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:55:51,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:51,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:55:51,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:55:51,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:55:51,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624407134] [2022-11-26 00:55:51,984 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:55:51,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117376591] [2022-11-26 00:55:51,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117376591] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:55:51,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1101621491] [2022-11-26 00:55:52,019 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-26 00:55:52,020 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:55:52,026 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:55:52,033 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:55:52,034 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:55:52,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:52,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,214 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:55:52,215 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:52,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:55:52,288 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:55:52,289 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:52,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:55:52,358 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:55:52,358 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:52,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:55:52,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:55:52,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:52,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:55:52,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:55:53,051 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:55:53,052 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:53,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:55:53,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:55:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,102 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:55:53,103 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:53,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:55:53,175 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:55:53,175 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:55:53,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:55:53,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:55:53,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:55:53,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:55:53,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:55:53,781 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:56:09,085 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:56:09,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1101621491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:56:09,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:56:09,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:56:09,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599946838] [2022-11-26 00:56:09,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:56:09,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:56:09,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:56:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:56:09,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-26 00:56:09,096 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-26 00:56:14,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:56:16,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:56:18,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:56:23,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:56:26,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:56:28,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:56:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:56:28,312 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-26 00:56:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:56:28,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 52 [2022-11-26 00:56:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:56:28,328 INFO L225 Difference]: With dead ends: 265 [2022-11-26 00:56:28,329 INFO L226 Difference]: Without dead ends: 140 [2022-11-26 00:56:28,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-26 00:56:28,330 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:56:28,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 461 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-26 00:56:28,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-26 00:56:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-26 00:56:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-26 00:56:28,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-26 00:56:28,389 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-26 00:56:28,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:56:28,389 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-26 00:56:28,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-11-26 00:56:28,390 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-26 00:56:28,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-26 00:56:28,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:56:28,392 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:56:28,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:56:28,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-26 00:56:28,605 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:56:28,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:56:28,606 INFO L85 PathProgramCache]: Analyzing trace with hash 583681991, now seen corresponding path program 1 times [2022-11-26 00:56:28,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:56:28,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155030478] [2022-11-26 00:56:28,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:28,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:56:28,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:56:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792841751] [2022-11-26 00:56:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:56:28,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:56:28,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:56:28,804 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:56:28,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:56:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:56:30,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:56:30,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:56:30,133 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:56:30,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:56:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:56:30,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:56:30,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155030478] [2022-11-26 00:56:30,247 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:56:30,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792841751] [2022-11-26 00:56:30,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792841751] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:56:30,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [307080255] [2022-11-26 00:56:30,251 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:56:30,252 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:56:30,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:56:30,252 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:56:30,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:56:30,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:30,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,367 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:56:30,367 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:56:30,423 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:56:30,424 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:30,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:56:30,492 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:56:30,493 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:30,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:56:30,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:30,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:56:30,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:56:30,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:56:31,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:56:31,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:31,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:31,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:56:31,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:56:31,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:31,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:56:31,380 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:56:31,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:56:31,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:56:31,748 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:56:31,750 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:31,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,770 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,785 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:31,792 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:56:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:31,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:56:31,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-26 00:56:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:56:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:56:32,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:56:32,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:56:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:32,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:32,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:56:32,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:56:32,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:56:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:56:32,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:56:32,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:56:32,728 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:56:32,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:56:32,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-26 00:56:33,075 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-26 00:56:33,173 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:56:47,096 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:56:56,783 WARN L233 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:09,960 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:21,846 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:57:22,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [307080255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:22,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:57:22,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:57:22,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317866232] [2022-11-26 00:57:22,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:22,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:57:22,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:57:22,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:57:22,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:57:22,450 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-26 00:57:24,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:27,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:29,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:31,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:33,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:35,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:37,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:39,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:41,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:45,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:57:47,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:57:50,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:57:54,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:57:57,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:57,395 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-26 00:57:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:57:57,396 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 65 [2022-11-26 00:57:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:57,398 INFO L225 Difference]: With dead ends: 267 [2022-11-26 00:57:57,398 INFO L226 Difference]: Without dead ends: 142 [2022-11-26 00:57:57,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 49.3s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:57:57,400 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:57,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 749 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 433 Invalid, 10 Unknown, 0 Unchecked, 34.9s Time] [2022-11-26 00:57:57,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-26 00:57:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-26 00:57:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-26 00:57:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-26 00:57:57,433 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-26 00:57:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:57,434 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-26 00:57:57,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-11-26 00:57:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-26 00:57:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-26 00:57:57,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:57,437 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:57,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:57:57,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:57:57,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:57,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash 501515405, now seen corresponding path program 1 times [2022-11-26 00:57:57,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:57,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810059941] [2022-11-26 00:57:57,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:57,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:57,818 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:57:57,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785303170] [2022-11-26 00:57:57,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:57,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:57:57,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:57:57,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:57:57,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4c4e0-3c95-486b-9732-11908c70800d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:57:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:59,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:57:59,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:57:59,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:57:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:57:59,318 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:57:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810059941] [2022-11-26 00:57:59,318 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:57:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785303170] [2022-11-26 00:57:59,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785303170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:57:59,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [97735234] [2022-11-26 00:57:59,322 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-26 00:57:59,322 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:57:59,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:57:59,323 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:57:59,323 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:57:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:57:59,433 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:57:59,434 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:57:59,482 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:57:59,483 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:57:59,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,499 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:57:59,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:57:59,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-26 00:57:59,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:57:59,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:57:59,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:57:59,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:57:59,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:57:59,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:58:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:58:00,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:58:00,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:58:00,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:58:00,249 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:58:00,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-26 00:58:00,325 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:58:00,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-26 00:58:00,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:58:00,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:58:00,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:58:00,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-26 00:58:00,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:58:00,601 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 00:58:00,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 56 [2022-11-26 00:58:00,636 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:58:00,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-26 00:58:00,668 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:58:00,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-26 00:58:00,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:00,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-26 00:58:00,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-26 00:58:00,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:58:00,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:58:00,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2022-11-26 00:58:00,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:00,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:58:01,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:58:01,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:58:01,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2022-11-26 00:58:01,970 INFO L217 Elim1Store]: Index analysis took 444 ms [2022-11-26 00:58:06,073 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-26 00:58:06,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-26 00:58:07,076 INFO L217 Elim1Store]: Index analysis took 773 ms [2022-11-26 00:58:09,895 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-26 00:58:09,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-26 00:58:19,717 WARN L233 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:58:19,717 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-26 00:58:19,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-26 00:58:48,082 WARN L233 SmtUtils]: Spent 28.21s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:58:48,083 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:58:48,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-26 00:58:49,373 INFO L217 Elim1Store]: Index analysis took 990 ms [2022-11-26 00:59:16,540 WARN L233 SmtUtils]: Spent 26.52s on a formula simplification. DAG size of input: 252 DAG size of output: 150 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:59:16,542 INFO L321 Elim1Store]: treesize reduction 2438, result has 32.1 percent of original size [2022-11-26 00:59:16,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 2093 [2022-11-26 00:59:17,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:59:17,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:59:17,910 INFO L217 Elim1Store]: Index analysis took 560 ms [2022-11-26 00:59:17,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 89 [2022-11-26 00:59:18,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:59:18,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 30 [2022-11-26 00:59:18,146 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-26 00:59:18,774 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:59:18,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 71 [2022-11-26 00:59:18,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:59:18,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:59:18,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2022-11-26 00:59:20,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:59:20,183 INFO L217 Elim1Store]: Index analysis took 111 ms [2022-11-26 00:59:20,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-26 01:02:28,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:02:28,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13