./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW --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 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 --- 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-4e7fbc6 [2022-11-23 15:30:23,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:30:23,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:30:23,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:30:23,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:30:23,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:30:23,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:30:23,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:30:23,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:30:23,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:30:23,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:30:23,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:30:23,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:30:23,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:30:23,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:30:23,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:30:23,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:30:23,622 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:30:23,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:30:23,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:30:23,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:30:23,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:30:23,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:30:23,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:30:23,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:30:23,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:30:23,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:30:23,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:30:23,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:30:23,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:30:23,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:30:23,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:30:23,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:30:23,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:30:23,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:30:23,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:30:23,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:30:23,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:30:23,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:30:23,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:30:23,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:30:23,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:30:23,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:30:23,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:30:23,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:30:23,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:30:23,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:30:23,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:30:23,711 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:30:23,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:30:23,712 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:30:23,712 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:30:23,714 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:30:23,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:30:23,714 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:30:23,715 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:30:23,715 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:30:23,715 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:30:23,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:30:23,716 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:30:23,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:30:23,717 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:30:23,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:30:23,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:30:23,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:30:23,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:30:23,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:30:23,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:30:23,720 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:30:23,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:30:23,720 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:30:23,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:30:23,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:30:23,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:30:23,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:30:23,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:30:23,723 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:30:23,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:30:23,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:30:23,723 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:30:23,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:30:23,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:30:23,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:30:23,725 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_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 [2022-11-23 15:30:24,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:30:24,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:30:24,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:30:24,163 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:30:24,163 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:30:24,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-23 15:30:27,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:30:27,667 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:30:27,678 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-23 15:30:27,693 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/data/a3a0d83df/041d68b9249d4396863cbc07496c8417/FLAG3f9bb1730 [2022-11-23 15:30:27,710 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/data/a3a0d83df/041d68b9249d4396863cbc07496c8417 [2022-11-23 15:30:27,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:30:27,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:30:27,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:30:27,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:30:27,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:30:27,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:27" (1/1) ... [2022-11-23 15:30:27,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1373201b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:27, skipping insertion in model container [2022-11-23 15:30:27,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:27" (1/1) ... [2022-11-23 15:30:27,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:30:27,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:30:28,416 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_1f411ad9-c77d-426c-8e58-66b9b5346ad8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-23 15:30:28,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:30:28,600 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:30:28,633 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_1f411ad9-c77d-426c-8e58-66b9b5346ad8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-23 15:30:28,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:30:28,875 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:30:28,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28 WrapperNode [2022-11-23 15:30:28,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:30:28,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:30:28,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:30:28,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:30:28,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:28,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:28,994 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-23 15:30:28,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:30:28,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:30:28,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:30:28,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:30:29,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:30:29,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:30:29,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:30:29,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:30:29,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (1/1) ... [2022-11-23 15:30:29,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:30:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:29,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:30:29,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:30:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:30:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:30:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:30:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:30:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:30:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:30:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:30:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:30:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:30:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:30:29,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:30:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:30:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:30:29,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:30:29,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:30:29,499 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:30:29,501 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:30:31,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:30:32,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:30:32,473 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-23 15:30:32,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:32 BoogieIcfgContainer [2022-11-23 15:30:32,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:30:32,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:30:32,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:30:32,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:30:32,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:30:27" (1/3) ... [2022-11-23 15:30:32,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea9563d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:32, skipping insertion in model container [2022-11-23 15:30:32,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:28" (2/3) ... [2022-11-23 15:30:32,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea9563d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:32, skipping insertion in model container [2022-11-23 15:30:32,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:32" (3/3) ... [2022-11-23 15:30:32,486 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-1.i [2022-11-23 15:30:32,505 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:30:32,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:30:32,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:30:32,561 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;@57fdd8b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:30:32,561 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:30:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 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) [2022-11-23 15:30:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:30:32,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:32,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:30:32,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:32,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-23 15:30:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:32,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612680667] [2022-11-23 15:30:32,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:32,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:30:32,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612680667] [2022-11-23 15:30:32,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612680667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:32,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:30:32,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:30:32,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273549371] [2022-11-23 15:30:32,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:32,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:30:32,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:30:32,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:30:32,918 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 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) [2022-11-23 15:30:35,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:30:38,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:30:40,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:30:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:30:40,056 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-23 15:30:40,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:30:40,066 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 [2022-11-23 15:30:40,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:30:40,076 INFO L225 Difference]: With dead ends: 347 [2022-11-23 15:30:40,076 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 15:30:40,079 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 [2022-11-23 15:30:40,083 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:30:40,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-23 15:30:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 15:30:40,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 15:30:40,131 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) [2022-11-23 15:30:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 15:30:40,136 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 15:30:40,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:30:40,136 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 15:30:40,137 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) [2022-11-23 15:30:40,137 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 15:30:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 15:30:40,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:30:40,140 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] [2022-11-23 15:30:40,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:30:40,141 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:30:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:30:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-23 15:30:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:30:40,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414309525] [2022-11-23 15:30:40,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:40,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:30:40,478 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:30:40,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [524264332] [2022-11-23 15:30:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:30:40,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:30:40,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:30:40,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:30:40,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:30:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:30:41,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:30:41,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:30:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:30:42,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:30:42,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:30:42,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:30:42,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414309525] [2022-11-23 15:30:42,159 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:30:42,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524264332] [2022-11-23 15:30:42,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524264332] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:30:42,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [367092019] [2022-11-23 15:30:42,182 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 15:30:42,183 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:30:42,186 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:30:42,192 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:30:42,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:30:42,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:42,360 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 [2022-11-23 15:30:42,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:42,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:42,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:42,391 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:30:42,392 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 [2022-11-23 15:30:42,501 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:30:42,504 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 [2022-11-23 15:30:42,521 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 [2022-11-23 15:30:42,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:42,543 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 [2022-11-23 15:30:42,992 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 [2022-11-23 15:30:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,061 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 [2022-11-23 15:30:43,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,116 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 [2022-11-23 15:30:43,157 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 [2022-11-23 15:30:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:30:43,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,219 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:30:43,220 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 [2022-11-23 15:30:43,263 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:30:43,267 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 [2022-11-23 15:30:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,291 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 [2022-11-23 15:30:43,341 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:30:43,342 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 [2022-11-23 15:30:43,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,365 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 [2022-11-23 15:30:43,824 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 [2022-11-23 15:30:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,878 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 [2022-11-23 15:30:43,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:30:43,937 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 [2022-11-23 15:30:43,978 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 [2022-11-23 15:30:44,014 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:30:52,260 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:30:59,525 WARN L233 SmtUtils]: Spent 5.14s 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) [2022-11-23 15:30:59,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [367092019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:30:59,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:30:59,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 15:30:59,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084424073] [2022-11-23 15:30:59,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:30:59,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:30:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:30:59,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:30:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 15:30:59,535 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) [2022-11-23 15:31:02,467 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] [2022-11-23 15:31:04,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:31:06,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:31:13,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:31:16,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:31:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:31:16,235 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 15:31:16,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:31:16,236 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 [2022-11-23 15:31:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:31:16,237 INFO L225 Difference]: With dead ends: 265 [2022-11-23 15:31:16,237 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 15:31:16,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 15:31:16,239 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 7 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:31:16,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 466 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 214 Invalid, 4 Unknown, 0 Unchecked, 16.1s Time] [2022-11-23 15:31:16,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 15:31:16,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 15:31:16,258 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) [2022-11-23 15:31:16,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 15:31:16,261 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 15:31:16,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:31:16,261 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 15:31:16,261 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) [2022-11-23 15:31:16,262 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 15:31:16,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 15:31:16,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:16,264 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] [2022-11-23 15:31:16,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:31:16,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:31:16,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:31:16,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:16,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-23 15:31:16,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:31:16,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627627095] [2022-11-23 15:31:16,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:16,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:31:16,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:31:16,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444809907] [2022-11-23 15:31:16,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:16,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:31:16,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:31:16,647 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:31:16,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:31:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:17,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:31:17,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:31:17,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:31:17,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:31:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:31:18,057 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:31:18,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627627095] [2022-11-23 15:31:18,058 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:31:18,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444809907] [2022-11-23 15:31:18,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444809907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:31:18,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1429706759] [2022-11-23 15:31:18,063 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 15:31:18,063 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:31:18,064 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:31:18,064 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:31:18,065 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:31:18,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,157 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 [2022-11-23 15:31:18,201 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:31:18,202 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 [2022-11-23 15:31:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,220 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 [2022-11-23 15:31:18,229 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 [2022-11-23 15:31:18,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:31:18,242 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 [2022-11-23 15:31:18,557 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 [2022-11-23 15:31:18,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,601 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 [2022-11-23 15:31:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,650 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 [2022-11-23 15:31:18,686 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 [2022-11-23 15:31:18,718 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 [2022-11-23 15:31:18,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,778 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 [2022-11-23 15:31:18,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:18,830 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 [2022-11-23 15:31:18,860 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 [2022-11-23 15:31:18,907 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 [2022-11-23 15:31:18,983 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:31:18,983 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 [2022-11-23 15:31:19,001 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 [2022-11-23 15:31:19,028 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 [2022-11-23 15:31:19,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,075 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 [2022-11-23 15:31:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,426 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 [2022-11-23 15:31:19,467 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:31:19,468 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 [2022-11-23 15:31:19,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,483 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 [2022-11-23 15:31:19,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:31:19,492 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 [2022-11-23 15:31:19,502 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 [2022-11-23 15:31:19,875 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 [2022-11-23 15:31:19,898 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 [2022-11-23 15:31:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,953 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 [2022-11-23 15:31:19,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:19,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,004 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 [2022-11-23 15:31:20,069 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 [2022-11-23 15:31:20,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,143 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 [2022-11-23 15:31:20,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,205 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 [2022-11-23 15:31:20,238 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 [2022-11-23 15:31:20,304 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 [2022-11-23 15:31:20,378 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:31:20,379 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 [2022-11-23 15:31:20,409 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 [2022-11-23 15:31:20,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:31:20,457 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 [2022-11-23 15:31:20,495 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 [2022-11-23 15:31:20,849 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 15:31:20,951 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:31:34,068 WARN L233 SmtUtils]: Spent 5.12s 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) [2022-11-23 15:31:43,934 WARN L233 SmtUtils]: Spent 5.74s 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) [2022-11-23 15:31:56,511 WARN L233 SmtUtils]: Spent 6.42s 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) [2022-11-23 15:32:11,115 WARN L233 SmtUtils]: Spent 8.42s 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) [2022-11-23 15:32:11,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1429706759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:11,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:32:11,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 15:32:11,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686218218] [2022-11-23 15:32:11,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:11,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:32:11,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:11,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:32:11,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:32:11,830 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) [2022-11-23 15:32:14,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:16,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:18,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:20,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:22,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:24,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:26,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:28,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:30,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:35,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:32:38,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:41,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:32:43,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:32:44,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:32:46,948 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] [2022-11-23 15:32:47,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:47,979 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 15:32:47,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:32:47,979 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 [2022-11-23 15:32:47,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:47,981 INFO L225 Difference]: With dead ends: 267 [2022-11-23 15:32:47,982 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 15:32:47,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.9s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 15:32:47,984 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:47,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 641 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 389 Invalid, 11 Unknown, 0 Unchecked, 36.1s Time] [2022-11-23 15:32:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 15:32:48,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 15:32:48,018 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) [2022-11-23 15:32:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 15:32:48,020 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 15:32:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:48,021 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 15:32:48,021 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) [2022-11-23 15:32:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 15:32:48,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 15:32:48,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:48,024 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] [2022-11-23 15:32:48,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:32:48,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:32:48,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:32:48,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:48,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-23 15:32:48,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:48,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088178089] [2022-11-23 15:32:48,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:48,419 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:32:48,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824537956] [2022-11-23 15:32:48,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:48,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:32:48,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:32:48,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:32:48,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f411ad9-c77d-426c-8e58-66b9b5346ad8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:32:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:49,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:32:49,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:32:49,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:32:49,989 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:32:49,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088178089] [2022-11-23 15:32:49,989 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:32:49,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824537956] [2022-11-23 15:32:49,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824537956] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:32:49,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [368097289] [2022-11-23 15:32:49,997 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 15:32:49,998 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:32:49,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:32:49,999 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:32:49,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:32:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:32:50,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,096 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:32:50,096 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 [2022-11-23 15:32:50,142 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:32:50,143 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 [2022-11-23 15:32:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,161 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 [2022-11-23 15:32:50,169 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 [2022-11-23 15:32:50,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,190 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 [2022-11-23 15:32:50,494 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 [2022-11-23 15:32:50,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,542 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 [2022-11-23 15:32:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,587 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 [2022-11-23 15:32:50,620 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 [2022-11-23 15:32:50,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,696 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 [2022-11-23 15:32:50,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,746 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 [2022-11-23 15:32:50,771 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 [2022-11-23 15:32:50,784 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 [2022-11-23 15:32:50,823 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 [2022-11-23 15:32:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:50,863 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 [2022-11-23 15:32:50,903 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 [2022-11-23 15:32:50,983 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:32:50,984 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 [2022-11-23 15:32:51,075 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:32:51,076 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 [2022-11-23 15:32:51,240 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 [2022-11-23 15:32:51,245 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 [2022-11-23 15:32:51,252 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 [2022-11-23 15:32:51,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 15:32:51,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 15:32:51,290 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 15:32:51,315 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 [2022-11-23 15:32:51,322 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 [2022-11-23 15:32:51,329 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 [2022-11-23 15:32:51,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,421 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 [2022-11-23 15:32:51,453 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 [2022-11-23 15:32:51,472 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 [2022-11-23 15:32:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:51,666 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 [2022-11-23 15:32:51,699 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 [2022-11-23 15:32:51,718 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 [2022-11-23 15:32:52,604 INFO L217 Elim1Store]: Index analysis took 589 ms [2022-11-23 15:32:56,204 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 15:32:56,205 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 [2022-11-23 15:32:57,330 INFO L217 Elim1Store]: Index analysis took 822 ms [2022-11-23 15:32:59,771 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 15:32:59,772 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 [2022-11-23 15:33:11,627 WARN L233 SmtUtils]: Spent 11.80s 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) [2022-11-23 15:33:11,627 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 15:33:11,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-23 15:33:34,201 WARN L233 SmtUtils]: Spent 22.44s 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) [2022-11-23 15:33:34,202 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 15:33:34,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-23 15:33:35,040 INFO L217 Elim1Store]: Index analysis took 623 ms [2022-11-23 15:33:53,102 WARN L233 SmtUtils]: Spent 17.70s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:33:53,103 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 15:33:53,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-23 15:33:54,639 INFO L217 Elim1Store]: Index analysis took 139 ms [2022-11-23 15:33:55,014 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 15:33:55,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-23 15:33:55,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 15:33:55,450 INFO L217 Elim1Store]: Index analysis took 235 ms [2022-11-23 15:33:56,547 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 15:33:56,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-23 15:34:01,857 INFO L217 Elim1Store]: Index analysis took 569 ms