./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/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_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/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_fed18213-9348-4028-b207-6486c8e4f3fa/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 be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 --- 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 14:21:57,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:21:57,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:21:57,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:21:57,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:21:57,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:21:57,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:21:57,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:21:57,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:21:57,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:21:57,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:21:57,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:21:57,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:21:57,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:21:57,357 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:21:57,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:21:57,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:21:57,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:21:57,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:21:57,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:21:57,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:21:57,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:21:57,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:21:57,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:21:57,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:21:57,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:21:57,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:21:57,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:21:57,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:21:57,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:21:57,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:21:57,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:21:57,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:21:57,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:21:57,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:21:57,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:21:57,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:21:57,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:21:57,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:21:57,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:21:57,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:21:57,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:21:57,464 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:21:57,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:21:57,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:21:57,465 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:21:57,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:21:57,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:21:57,467 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:21:57,467 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:21:57,467 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:21:57,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:21:57,469 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:21:57,469 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:21:57,469 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:21:57,470 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:21:57,470 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:21:57,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:21:57,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:21:57,471 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:21:57,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:21:57,472 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:21:57,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:21:57,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:21:57,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:21:57,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:21:57,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:21:57,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:21:57,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:21:57,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:21:57,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:21:57,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:21:57,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:21:57,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:21:57,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:21:57,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:21:57,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:21:57,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:21:57,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:21:57,478 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:21:57,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:21:57,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:21:57,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:21:57,479 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_fed18213-9348-4028-b207-6486c8e4f3fa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be1dcf4f68625d62d28b81607385317c3749a3b9c4401099e862ce9a8a6e6751 [2022-11-23 14:21:57,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:21:57,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:21:57,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:21:57,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:21:57,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:21:57,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2022-11-23 14:22:00,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:22:01,098 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:22:01,103 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i [2022-11-23 14:22:01,131 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/data/6136ac0e7/28ac20e1499944ff89415b4f85e8e5b8/FLAG4dda6e9f4 [2022-11-23 14:22:01,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/data/6136ac0e7/28ac20e1499944ff89415b4f85e8e5b8 [2022-11-23 14:22:01,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:22:01,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:22:01,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:01,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:22:01,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:22:01,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:01" (1/1) ... [2022-11-23 14:22:01,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363d04fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:01, skipping insertion in model container [2022-11-23 14:22:01,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:01" (1/1) ... [2022-11-23 14:22:01,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:22:01,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:22:01,690 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_fed18213-9348-4028-b207-6486c8e4f3fa/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2022-11-23 14:22:01,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:01,825 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:22:01,882 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_fed18213-9348-4028-b207-6486c8e4f3fa/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test4-1.i[33021,33034] [2022-11-23 14:22:01,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:22:02,020 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:22:02,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02 WrapperNode [2022-11-23 14:22:02,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:22:02,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:02,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:22:02,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:22:02,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,143 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-23 14:22:02,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:22:02,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:22:02,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:22:02,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:22:02,161 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:22:02,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:22:02,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:22:02,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:22:02,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (1/1) ... [2022-11-23 14:22:02,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:22:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:22:02,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:22:02,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:22:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:22:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:22:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:22:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:22:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:22:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:22:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:22:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:22:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:22:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:22:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:22:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:22:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:22:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:22:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:22:02,737 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:22:02,740 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:22:05,210 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:22:05,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:22:05,660 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-23 14:22:05,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:05 BoogieIcfgContainer [2022-11-23 14:22:05,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:22:05,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:22:05,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:22:05,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:22:05,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:01" (1/3) ... [2022-11-23 14:22:05,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0e3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:05, skipping insertion in model container [2022-11-23 14:22:05,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:02" (2/3) ... [2022-11-23 14:22:05,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd0e3e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:05, skipping insertion in model container [2022-11-23 14:22:05,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:05" (3/3) ... [2022-11-23 14:22:05,672 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test4-1.i [2022-11-23 14:22:05,722 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:22:05,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:22:05,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:22:05,818 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;@3a8e71a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:22:05,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:22:05,844 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 14:22:05,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:22:05,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:05,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:22:05,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-23 14:22:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:05,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089139982] [2022-11-23 14:22:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:06,086 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 14:22:06,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:06,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089139982] [2022-11-23 14:22:06,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089139982] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:06,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:22:06,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:22:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633251911] [2022-11-23 14:22:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:06,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:22:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:06,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:22:06,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:22:06,128 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 14:22:08,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:22:11,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:22:12,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:22:12,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:12,753 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-23 14:22:12,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:22:12,763 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 14:22:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:12,774 INFO L225 Difference]: With dead ends: 347 [2022-11-23 14:22:12,774 INFO L226 Difference]: Without dead ends: 220 [2022-11-23 14:22:12,777 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 14:22:12,781 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s 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, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:12,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:22:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-23 14:22:12,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-23 14:22:12,858 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 14:22:12,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-23 14:22:12,865 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-23 14:22:12,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:12,866 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-23 14:22:12,866 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 14:22:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-23 14:22:12,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 14:22:12,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:12,873 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 14:22:12,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:22:12,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:12,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:12,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-23 14:22:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073894936] [2022-11-23 14:22:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:13,182 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:22:13,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045300144] [2022-11-23 14:22:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:13,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:22:13,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:22:13,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:22:13,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:22:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:14,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:22:14,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:22:14,808 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 14:22:14,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:22:14,900 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 14:22:14,901 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:14,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073894936] [2022-11-23 14:22:14,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:22:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045300144] [2022-11-23 14:22:14,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045300144] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:22:14,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1208495781] [2022-11-23 14:22:14,922 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-23 14:22:14,922 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:22:14,926 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:22:14,932 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:22:14,932 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:22:15,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,069 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 14:22:15,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:22:15,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,097 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:22:15,097 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 14:22:15,142 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:22:15,143 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 14:22:15,157 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 14:22:15,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,177 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 14:22:15,596 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 14:22:15,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,680 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 14:22:15,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,739 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 14:22:15,784 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 14:22:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:22:15,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,843 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:22:15,844 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 14:22:15,884 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:22:15,885 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 14:22:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,904 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 14:22:15,952 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:22:15,953 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 14:22:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:15,973 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 14:22:16,421 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 14:22:16,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,477 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 14:22:16,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:16,526 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 14:22:16,569 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 14:22:16,605 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:22:24,703 WARN L233 SmtUtils]: Spent 5.18s 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 14:22:32,202 WARN L233 SmtUtils]: Spent 5.30s 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 14:22:32,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1208495781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:22:32,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:22:32,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:22:32,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538288097] [2022-11-23 14:22:32,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:22:32,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:22:32,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:22:32,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:22:32,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 14:22:32,211 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 14:22:36,180 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 14:22:38,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:22:40,340 WARN L539 Checker$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 14:22:44,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:22:45,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:22:47,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:22:50,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:22:50,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:22:50,572 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-11-23 14:22:50,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:22:50,573 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 14:22:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:22:50,575 INFO L225 Difference]: With dead ends: 265 [2022-11-23 14:22:50,575 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 14:22:50,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 14:22:50,577 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 7 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s 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, 16.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:22:50,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 466 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 214 Invalid, 4 Unknown, 0 Unchecked, 16.7s Time] [2022-11-23 14:22:50,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 14:22:50,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-11-23 14:22:50,597 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 14:22:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-23 14:22:50,599 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-23 14:22:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:22:50,600 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-23 14:22:50,600 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 14:22:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-23 14:22:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 14:22:50,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:22:50,603 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 14:22:50,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:22:50,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:22:50,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:22:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:22:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-23 14:22:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:22:50,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263028956] [2022-11-23 14:22:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:22:51,022 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:22:51,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1058430991] [2022-11-23 14:22:51,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:22:51,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:22:51,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:22:51,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:22:51,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:22:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:22:52,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:22:52,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:22:52,294 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 14:22:52,295 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:22:52,426 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 14:22:52,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:22:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263028956] [2022-11-23 14:22:52,427 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:22:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058430991] [2022-11-23 14:22:52,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058430991] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:22:52,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1079561246] [2022-11-23 14:22:52,431 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:22:52,431 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:22:52,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:22:52,432 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:22:52,432 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:22:52,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,531 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 14:22:52,578 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:22:52,579 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 14:22:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,607 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 14:22:52,618 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 14:22:52,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:22:52,633 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 14:22:52,953 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 14:22:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:52,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,000 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 14:22:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,048 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 14:22:53,085 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 14:22:53,145 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 14:22:53,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,206 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 14:22:53,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,265 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 14:22:53,302 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 14:22:53,347 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 14:22:53,420 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:22:53,420 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 14:22:53,437 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 14:22:53,462 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 14:22:53,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,523 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 14:22:53,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,845 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 14:22:53,888 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:22:53,889 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 14:22:53,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,905 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 14:22:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:53,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:22:53,922 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 14:22:53,932 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 14:22:54,284 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 14:22:54,304 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 14:22:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,354 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 14:22:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,401 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 14:22:54,455 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 14:22:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,515 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 14:22:54,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,567 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 14:22:54,598 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 14:22:54,657 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 14:22:54,753 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:22:54,753 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 14:22:54,770 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 14:22:54,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:22:54,819 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 14:22:54,856 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 14:22:55,228 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-23 14:22:55,334 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:23:02,256 WARN L233 SmtUtils]: Spent 5.16s 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 14:23:10,175 WARN L233 SmtUtils]: Spent 5.75s 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 14:23:20,909 WARN L233 SmtUtils]: Spent 6.60s 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 14:23:33,206 WARN L233 SmtUtils]: Spent 6.15s 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 14:23:45,664 WARN L233 SmtUtils]: Spent 6.25s 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 14:23:46,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1079561246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:46,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:23:46,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:23:46,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177266166] [2022-11-23 14:23:46,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:46,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:23:46,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:23:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:23:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:23:46,875 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 14:23:49,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:23:51,752 WARN L539 Checker$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 14:23:53,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:23:55,956 WARN L539 Checker$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 14:23:57,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:23:59,993 WARN L539 Checker$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 14:24:02,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:24:04,065 WARN L539 Checker$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 14:24:06,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:24:16,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:24:18,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:24:21,519 WARN L539 Checker$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 14:24:21,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:24:21,537 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-23 14:24:21,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:24:21,538 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 14:24:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:24:21,540 INFO L225 Difference]: With dead ends: 267 [2022-11-23 14:24:21,540 INFO L226 Difference]: Without dead ends: 142 [2022-11-23 14:24:21,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.5s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:24:21,541 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s 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, 34.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:24:21,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 641 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 389 Invalid, 11 Unknown, 0 Unchecked, 34.6s Time] [2022-11-23 14:24:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-23 14:24:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-23 14:24:21,582 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 14:24:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-23 14:24:21,588 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-23 14:24:21,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:24:21,591 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-23 14:24:21,591 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 14:24:21,591 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-23 14:24:21,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 14:24:21,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:24:21,602 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 14:24:21,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:24:21,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:21,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:24:21,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:24:21,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-23 14:24:21,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:24:21,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630025498] [2022-11-23 14:24:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:21,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:24:21,991 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:24:21,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495493724] [2022-11-23 14:24:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:24:21,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:24:21,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:24:21,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:24:22,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fed18213-9348-4028-b207-6486c8e4f3fa/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:24:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:24:23,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:24:23,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:23,375 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 14:24:23,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:24:23,498 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 14:24:23,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:24:23,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630025498] [2022-11-23 14:24:23,499 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:24:23,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495493724] [2022-11-23 14:24:23,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495493724] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:24:23,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1800961863] [2022-11-23 14:24:23,503 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-23 14:24:23,503 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:24:23,503 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:24:23,504 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:24:23,504 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:24:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:23,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:24:23,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:23,681 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:24:23,681 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 14:24:23,726 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:24:23,727 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 14:24:23,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:23,744 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 14:24:23,753 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 14:24:23,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:23,771 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 14:24:24,078 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 14:24:24,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,125 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 14:24:24,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,169 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 14:24:24,202 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 14:24:24,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,278 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 14:24:24,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,328 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 14:24:24,354 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 14:24:24,367 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 14:24:24,407 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 14:24:24,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,448 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 14:24:24,488 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 14:24:24,566 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:24:24,567 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 14:24:24,650 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:24:24,650 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 14:24:24,796 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 14:24:24,802 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 14:24:24,808 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 14:24:24,827 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 14:24:24,836 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 14:24:24,844 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 14:24:24,863 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 14:24:24,869 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 14:24:24,876 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 14:24:24,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:24,959 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 14:24:24,987 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 14:24:25,006 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 14:24:25,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:24:25,195 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 14:24:25,214 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 14:24:25,232 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 14:24:26,153 INFO L217 Elim1Store]: Index analysis took 573 ms [2022-11-23 14:24:29,037 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-23 14:24:29,038 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 14:24:30,026 INFO L217 Elim1Store]: Index analysis took 819 ms [2022-11-23 14:24:32,109 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-23 14:24:32,110 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 14:24:46,840 WARN L233 SmtUtils]: Spent 14.66s 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 14:24:46,840 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 14:24:46,841 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 14:24:47,046 INFO L217 Elim1Store]: Index analysis took 130 ms [2022-11-23 14:25:09,070 WARN L233 SmtUtils]: Spent 22.02s 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 14:25:09,071 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:25:09,071 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 14:25:10,093 INFO L217 Elim1Store]: Index analysis took 781 ms [2022-11-23 14:25:30,726 WARN L233 SmtUtils]: Spent 19.84s 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 14:25:30,727 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 14:25:30,728 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 14:25:31,994 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-23 14:25:32,685 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 14:25:32,685 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 14:25:32,782 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 14:25:33,123 INFO L217 Elim1Store]: Index analysis took 227 ms [2022-11-23 14:25:33,969 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:25:33,970 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 14:25:39,488 INFO L217 Elim1Store]: Index analysis took 656 ms