./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh --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 b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 --- 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-2329fc7 [2022-12-14 11:55:16,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:55:16,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:55:16,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:55:16,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:55:16,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:55:16,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:55:16,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:55:16,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:55:16,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:55:16,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:55:16,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:55:16,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:55:16,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:55:16,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:55:16,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:55:16,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:55:16,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:55:16,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:55:16,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:55:16,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:55:16,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:55:16,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:55:16,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:55:16,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:55:16,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:55:16,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:55:16,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:55:16,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:55:16,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:55:16,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:55:16,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:55:16,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:55:16,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:55:16,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:55:16,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:55:16,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:55:16,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:55:16,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:55:16,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:55:16,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:55:16,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:55:16,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:55:16,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:55:16,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:55:16,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:55:16,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:55:16,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:55:16,090 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:55:16,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:55:16,090 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:55:16,090 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:55:16,091 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:55:16,091 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:55:16,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:55:16,092 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:55:16,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:55:16,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:55:16,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:55:16,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:55:16,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:55:16,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:55:16,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:55:16,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:55:16,094 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:55:16,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:55:16,095 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_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9bf0bad0cbe69b5d3c479fc9571d5ea3a755c149f856a4942bf9e49854dfec3 [2022-12-14 11:55:16,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:55:16,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:55:16,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:55:16,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:55:16,280 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:55:16,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2022-12-14 11:55:18,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:55:19,140 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:55:19,140 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i [2022-12-14 11:55:19,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/data/72885650a/fae097de89d94a229f39530b3f89bb09/FLAG9ef10381b [2022-12-14 11:55:19,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/data/72885650a/fae097de89d94a229f39530b3f89bb09 [2022-12-14 11:55:19,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:55:19,164 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:55:19,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:55:19,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:55:19,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:55:19,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff50bdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19, skipping insertion in model container [2022-12-14 11:55:19,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:55:19,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:55:19,461 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_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i[33021,33034] [2022-12-14 11:55:19,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:55:19,539 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:55:19,559 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_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-1.i[33021,33034] [2022-12-14 11:55:19,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:55:19,619 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:55:19,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19 WrapperNode [2022-12-14 11:55:19,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:55:19,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:55:19,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:55:19,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:55:19,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,684 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-12-14 11:55:19,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:55:19,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:55:19,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:55:19,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:55:19,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,748 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:55:19,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:55:19,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:55:19,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:55:19,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (1/1) ... [2022-12-14 11:55:19,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:55:19,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:55:19,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:55:19,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 11:55:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 11:55:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:55:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:55:19,981 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:55:19,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:55:21,629 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:55:21,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:55:21,990 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-12-14 11:55:21,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:55:21 BoogieIcfgContainer [2022-12-14 11:55:21,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:55:21,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:55:21,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:55:21,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:55:21,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:55:19" (1/3) ... [2022-12-14 11:55:21,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c06409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:55:21, skipping insertion in model container [2022-12-14 11:55:21,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:55:19" (2/3) ... [2022-12-14 11:55:21,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c06409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:55:21, skipping insertion in model container [2022-12-14 11:55:21,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:55:21" (3/3) ... [2022-12-14 11:55:21,999 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-1.i [2022-12-14 11:55:22,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:55:22,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:55:22,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:55:22,061 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;@30b3ad07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:55:22,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:55:22,065 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) [2022-12-14 11:55:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:55:22,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:55:22,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:55:22,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:55:22,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:55:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-12-14 11:55:22,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:55:22,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171755596] [2022-12-14 11:55:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:55:22,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:55:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:55:22,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:55:22,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:55:22,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171755596] [2022-12-14 11:55:22,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171755596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:55:22,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:55:22,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:55:22,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016716396] [2022-12-14 11:55:22,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:55:22,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:55:22,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:55:22,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:55:22,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:55:22,280 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) [2022-12-14 11:55:24,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:55:26,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:55:28,169 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 [] [2022-12-14 11:55:28,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:55:28,171 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-12-14 11:55:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:55:28,180 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 [2022-12-14 11:55:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:55:28,188 INFO L225 Difference]: With dead ends: 347 [2022-12-14 11:55:28,188 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 11:55:28,190 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 [2022-12-14 11:55:28,193 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s 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, 5.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:55:28,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-12-14 11:55:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 11:55:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-12-14 11:55:28,240 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) [2022-12-14 11:55:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-12-14 11:55:28,243 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-12-14 11:55:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:55:28,244 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-12-14 11:55:28,244 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) [2022-12-14 11:55:28,244 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-12-14 11:55:28,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 11:55:28,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:55:28,246 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] [2022-12-14 11:55:28,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:55:28,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:55:28,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:55:28,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-12-14 11:55:28,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:55:28,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215606415] [2022-12-14 11:55:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:55:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:55:28,443 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:55:28,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049212897] [2022-12-14 11:55:28,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:55:28,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:55:28,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:55:28,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:55:28,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:55:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:55:29,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:55:29,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:55:29,377 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:55:29,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:55:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:55:29,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:55:29,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215606415] [2022-12-14 11:55:29,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:55:29,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049212897] [2022-12-14 11:55:29,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049212897] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:55:29,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1008657206] [2022-12-14 11:55:29,459 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 11:55:29,459 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:55:29,465 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:55:29,470 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:55:29,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:55:29,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,599 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 [2022-12-14 11:55:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:55:29,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,624 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:55:29,624 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 [2022-12-14 11:55:29,661 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:55:29,662 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 [2022-12-14 11:55:29,674 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 [2022-12-14 11:55:29,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,691 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 [2022-12-14 11:55:29,937 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 [2022-12-14 11:55:29,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:29,980 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 [2022-12-14 11:55:30,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,019 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 [2022-12-14 11:55:30,049 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 [2022-12-14 11:55:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:55:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,090 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:55:30,090 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 [2022-12-14 11:55:30,124 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 11:55:30,125 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 [2022-12-14 11:55:30,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,142 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 [2022-12-14 11:55:30,180 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:55:30,180 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 [2022-12-14 11:55:30,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,198 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 [2022-12-14 11:55:30,535 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 [2022-12-14 11:55:30,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,572 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 [2022-12-14 11:55:30,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:55:30,604 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 [2022-12-14 11:55:30,636 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 [2022-12-14 11:55:30,666 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:55:38,431 WARN L233 SmtUtils]: Spent 5.13s 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) [2022-12-14 11:55:45,686 WARN L233 SmtUtils]: Spent 5.16s 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) [2022-12-14 11:55:45,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1008657206] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:55:45,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:55:45,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 11:55:45,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261580354] [2022-12-14 11:55:45,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:55:45,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 11:55:45,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:55:45,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 11:55:45,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 11:55:45,691 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) [2022-12-14 11:55:47,756 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] [2022-12-14 11:55:49,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:55:51,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:55:53,966 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] [2022-12-14 11:55:59,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:55:59,817 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-12-14 11:55:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 11:55:59,818 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 [2022-12-14 11:55:59,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:55:59,819 INFO L225 Difference]: With dead ends: 265 [2022-12-14 11:55:59,819 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 11:55:59,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 11:55:59,821 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:55:59,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 466 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 4 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 11:55:59,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 11:55:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-12-14 11:55:59,835 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) [2022-12-14 11:55:59,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-12-14 11:55:59,836 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-12-14 11:55:59,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:55:59,836 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-12-14 11:55:59,837 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) [2022-12-14 11:55:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-12-14 11:55:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 11:55:59,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:55:59,838 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] [2022-12-14 11:55:59,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:56:00,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:56:00,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:56:00,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:56:00,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-12-14 11:56:00,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:56:00,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701592540] [2022-12-14 11:56:00,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:00,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:56:00,197 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:56:00,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516605430] [2022-12-14 11:56:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:56:00,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:56:00,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:56:00,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:56:00,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:56:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:56:00,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:56:00,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:56:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:56:00,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:56:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:56:00,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:56:00,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701592540] [2022-12-14 11:56:00,987 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:56:00,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516605430] [2022-12-14 11:56:00,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516605430] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:56:00,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [748037813] [2022-12-14 11:56:00,992 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 11:56:00,992 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:56:00,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:56:00,992 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:56:00,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:56:01,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,052 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 [2022-12-14 11:56:01,082 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:56:01,082 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 [2022-12-14 11:56:01,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,095 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 [2022-12-14 11:56:01,101 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 [2022-12-14 11:56:01,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:56:01,111 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 [2022-12-14 11:56:01,372 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 [2022-12-14 11:56:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,409 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 [2022-12-14 11:56:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,447 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 [2022-12-14 11:56:01,479 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 [2022-12-14 11:56:01,506 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 [2022-12-14 11:56:01,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,550 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 [2022-12-14 11:56:01,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,601 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 [2022-12-14 11:56:01,629 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 [2022-12-14 11:56:01,663 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 [2022-12-14 11:56:01,719 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:56:01,720 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 [2022-12-14 11:56:01,734 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 [2022-12-14 11:56:01,755 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 [2022-12-14 11:56:01,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:01,794 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 [2022-12-14 11:56:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,002 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 [2022-12-14 11:56:02,031 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:56:02,032 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 [2022-12-14 11:56:02,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,043 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 [2022-12-14 11:56:02,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:56:02,050 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 [2022-12-14 11:56:02,057 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 [2022-12-14 11:56:02,281 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 [2022-12-14 11:56:02,292 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 [2022-12-14 11:56:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,322 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 [2022-12-14 11:56:02,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,348 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 [2022-12-14 11:56:02,397 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 [2022-12-14 11:56:02,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,439 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 [2022-12-14 11:56:02,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,483 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 [2022-12-14 11:56:02,508 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 [2022-12-14 11:56:02,558 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 [2022-12-14 11:56:02,603 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:56:02,603 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 [2022-12-14 11:56:02,615 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 [2022-12-14 11:56:02,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:56:02,654 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 [2022-12-14 11:56:02,679 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 [2022-12-14 11:56:02,963 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-12-14 11:56:03,064 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 11:56:09,183 WARN L233 SmtUtils]: Spent 5.06s 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) [2022-12-14 11:56:18,165 WARN L233 SmtUtils]: Spent 6.91s 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) [2022-12-14 11:56:28,705 WARN L233 SmtUtils]: Spent 6.44s 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) [2022-12-14 11:56:40,520 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 11:56:53,062 WARN L233 SmtUtils]: Spent 6.39s 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) [2022-12-14 11:56:53,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [748037813] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:56:53,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 11:56:53,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 11:56:53,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130531577] [2022-12-14 11:56:53,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:56:53,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 11:56:53,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:56:53,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 11:56:53,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 11:56:53,583 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) [2022-12-14 11:56:55,817 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] [2022-12-14 11:56:57,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:00,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:02,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:04,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:06,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:08,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:10,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:12,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:17,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:57:19,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:20,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:57:23,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:25,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 11:57:25,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:57:25,565 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-12-14 11:57:25,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 11:57:25,566 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 [2022-12-14 11:57:25,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:57:25,567 INFO L225 Difference]: With dead ends: 267 [2022-12-14 11:57:25,567 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 11:57:25,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.5s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 11:57:25,568 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:57:25,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 545 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 324 Invalid, 10 Unknown, 0 Unchecked, 31.9s Time] [2022-12-14 11:57:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 11:57:25,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 11:57:25,587 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) [2022-12-14 11:57:25,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-12-14 11:57:25,588 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-12-14 11:57:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:57:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-12-14 11:57:25,588 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) [2022-12-14 11:57:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-12-14 11:57:25,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 11:57:25,589 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:57:25,589 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] [2022-12-14 11:57:25,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:57:25,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:57:25,791 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:57:25,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:57:25,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-12-14 11:57:25,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:57:25,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524586553] [2022-12-14 11:57:25,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:57:25,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:57:25,919 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:57:25,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768818050] [2022-12-14 11:57:25,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:57:25,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:57:25,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:57:25,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:57:25,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ae8bc3-c2e7-4bcd-a5d9-608e33087442/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:57:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:57:26,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 11:57:26,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:57:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:57:26,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:57:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:57:26,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:57:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524586553] [2022-12-14 11:57:26,694 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:57:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768818050] [2022-12-14 11:57:26,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768818050] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:57:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [691977644] [2022-12-14 11:57:26,697 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 11:57:26,697 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:57:26,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:57:26,697 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:57:26,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:57:26,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:26,784 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:57:26,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:26,798 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:57:26,798 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 [2022-12-14 11:57:26,832 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:57:26,833 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 [2022-12-14 11:57:26,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:26,846 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 [2022-12-14 11:57:26,852 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 [2022-12-14 11:57:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:26,864 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 [2022-12-14 11:57:27,126 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 [2022-12-14 11:57:27,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,157 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 [2022-12-14 11:57:27,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,188 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 [2022-12-14 11:57:27,213 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 [2022-12-14 11:57:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,260 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 [2022-12-14 11:57:27,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,299 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 [2022-12-14 11:57:27,316 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 [2022-12-14 11:57:27,324 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 [2022-12-14 11:57:27,348 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 [2022-12-14 11:57:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,371 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 [2022-12-14 11:57:27,398 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 [2022-12-14 11:57:27,440 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:57:27,440 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 [2022-12-14 11:57:27,488 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:57:27,488 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 [2022-12-14 11:57:27,582 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 [2022-12-14 11:57:27,586 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 [2022-12-14 11:57:27,590 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 [2022-12-14 11:57:27,602 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 [2022-12-14 11:57:27,608 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 [2022-12-14 11:57:27,613 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 [2022-12-14 11:57:27,626 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 [2022-12-14 11:57:27,630 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 [2022-12-14 11:57:27,635 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 [2022-12-14 11:57:27,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,701 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 [2022-12-14 11:57:27,725 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 [2022-12-14 11:57:27,741 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 [2022-12-14 11:57:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:57:27,886 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 [2022-12-14 11:57:27,903 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 [2022-12-14 11:57:27,916 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 [2022-12-14 11:57:28,512 INFO L217 Elim1Store]: Index analysis took 348 ms [2022-12-14 11:57:30,697 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-12-14 11:57:30,697 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 [2022-12-14 11:57:31,309 INFO L217 Elim1Store]: Index analysis took 530 ms [2022-12-14 11:57:33,483 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-12-14 11:57:33,484 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 [2022-12-14 11:57:43,625 WARN L233 SmtUtils]: Spent 10.11s 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) [2022-12-14 11:57:43,625 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 11:57:43,625 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 [2022-12-14 11:57:58,204 WARN L233 SmtUtils]: Spent 14.45s 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) [2022-12-14 11:57:58,205 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 11:57:58,205 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 [2022-12-14 11:57:58,744 INFO L217 Elim1Store]: Index analysis took 392 ms [2022-12-14 11:58:13,298 WARN L233 SmtUtils]: Spent 14.26s 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) [2022-12-14 11:58:13,299 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-12-14 11:58:13,299 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 [2022-12-14 11:58:14,479 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 11:58:14,480 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 [2022-12-14 11:58:14,553 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 [2022-12-14 11:58:14,835 INFO L217 Elim1Store]: Index analysis took 181 ms [2022-12-14 11:58:15,585 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:58:15,586 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 [2022-12-14 11:58:19,265 INFO L217 Elim1Store]: Index analysis took 550 ms