./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:04:32,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:32,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:32,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:32,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:32,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:32,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:32,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:32,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:32,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:32,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:32,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:32,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:32,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:32,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:32,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:32,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:32,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:32,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:32,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:32,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:32,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:32,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:33,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:33,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:33,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:33,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:33,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:33,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:33,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:33,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:33,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:33,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:33,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:33,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:33,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:33,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:33,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:33,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:33,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:33,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:33,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:04:33,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:33,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:33,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:33,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:33,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:33,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:33,090 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:33,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:33,091 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:33,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:33,092 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:33,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:33,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:33,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:33,093 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:33,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:33,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:33,094 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:33,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:33,095 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:04:33,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:33,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:04:33,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:33,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:33,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:33,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:33,096 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:04:33,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:33,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:33,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:33,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:33,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:33,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:33,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:33,099 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:33,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:33,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:33,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:33,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:33,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:33,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:33,100 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_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2022-11-23 14:04:33,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:33,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:33,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:33,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:33,490 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:33,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-11-23 14:04:36,707 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:37,099 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:37,100 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2022-11-23 14:04:37,130 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/data/c07bf44ac/aab4e42409e843f8a82b73f406a6702d/FLAG49bd7f73b [2022-11-23 14:04:37,153 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/data/c07bf44ac/aab4e42409e843f8a82b73f406a6702d [2022-11-23 14:04:37,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:37,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:37,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:37,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:37,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:37,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:37" (1/1) ... [2022-11-23 14:04:37,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0a48a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:37, skipping insertion in model container [2022-11-23 14:04:37,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:37" (1/1) ... [2022-11-23 14:04:37,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:37,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:04:37,748 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_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-11-23 14:04:37,985 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_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-11-23 14:04:38,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:38,029 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:04:38,066 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_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[33021,33034] [2022-11-23 14:04:38,149 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_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i[49681,49694] [2022-11-23 14:04:38,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:38,224 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:04:38,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38 WrapperNode [2022-11-23 14:04:38,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:38,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:38,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:04:38,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:04:38,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,432 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-23 14:04:38,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:38,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:04:38,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:04:38,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:04:38,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,605 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:04:38,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:04:38,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:04:38,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:04:38,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (1/1) ... [2022-11-23 14:04:38,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:38,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:38,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:04:38,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:04:38,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:04:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:04:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:04:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:04:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:04:38,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:04:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:04:38,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:04:38,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:04:38,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:04:39,153 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:04:39,155 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:04:41,431 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:04:42,103 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:04:42,103 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-23 14:04:42,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:42 BoogieIcfgContainer [2022-11-23 14:04:42,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:04:42,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:04:42,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:04:42,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:04:42,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:37" (1/3) ... [2022-11-23 14:04:42,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7b9f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:42, skipping insertion in model container [2022-11-23 14:04:42,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:38" (2/3) ... [2022-11-23 14:04:42,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7b9f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:42, skipping insertion in model container [2022-11-23 14:04:42,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:42" (3/3) ... [2022-11-23 14:04:42,116 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2022-11-23 14:04:42,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:04:42,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:04:42,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:04:42,202 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;@120613c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:04:42,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:04:42,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:04:42,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:04:42,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:42,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:04:42,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:42,224 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-23 14:04:42,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:42,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968675729] [2022-11-23 14:04:42,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:42,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:42,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:42,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968675729] [2022-11-23 14:04:42,419 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:04:42,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364814865] [2022-11-23 14:04:42,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:42,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:42,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:42,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:04:42,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:04:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:42,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:04:42,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:42,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:04:42,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364814865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:42,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:42,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:04:42,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963734364] [2022-11-23 14:04:42,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:42,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:04:42,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:42,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:04:42,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:04:42,818 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:04:43,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:43,971 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-23 14:04:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:04:43,980 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 14:04:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:43,990 INFO L225 Difference]: With dead ends: 353 [2022-11-23 14:04:43,990 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 14:04:43,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:04:43,997 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:43,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 14:04:44,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 14:04:44,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 14:04:44,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:04:44,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 14:04:44,050 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 14:04:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:44,050 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 14:04:44,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:04:44,051 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 14:04:44,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:04:44,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:44,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:44,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:04:44,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:04:44,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:44,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-23 14:04:44,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:44,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786382079] [2022-11-23 14:04:44,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:44,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:44,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:44,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786382079] [2022-11-23 14:04:44,297 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:04:44,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064042887] [2022-11-23 14:04:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:44,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:44,299 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:04:44,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:04:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:44,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:04:44,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:44,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:44,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:04:44,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064042887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:44,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:44,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:04:44,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133958842] [2022-11-23 14:04:44,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:44,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:04:44,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:44,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:04:44,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:04:44,746 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:04:47,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:04:47,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:47,180 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 14:04:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:04:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 14:04:47,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:47,191 INFO L225 Difference]: With dead ends: 342 [2022-11-23 14:04:47,191 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 14:04:47,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:04:47,193 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:47,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 14:04:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 14:04:47,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 14:04:47,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:04:47,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 14:04:47,214 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 14:04:47,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:47,214 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 14:04:47,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:04:47,215 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 14:04:47,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:04:47,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:47,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:47,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:04:47,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:47,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-23 14:04:47,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:47,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77864881] [2022-11-23 14:04:47,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:47,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:47,739 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:04:47,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941566661] [2022-11-23 14:04:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:47,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:47,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:47,749 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:04:47,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:04:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:49,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:04:49,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:49,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:04:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:04:49,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77864881] [2022-11-23 14:04:49,679 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:04:49,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941566661] [2022-11-23 14:04:49,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941566661] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:04:49,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337487043] [2022-11-23 14:04:49,712 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 14:04:49,712 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:04:49,718 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:04:49,725 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:04:49,725 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:04:50,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,133 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:04:50,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 14:04:50,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:04:50,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:04:50,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:04:50,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,312 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:04:50,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-23 14:04:50,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,385 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:04:50,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 14:04:50,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:04:50,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:50,428 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 22 treesize of output 30 [2022-11-23 14:04:50,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:04:51,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:04:51,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:04:51,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:04:51,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:04:51,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:04:51,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:04:51,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:04:51,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:04:51,937 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:04:59,257 WARN L233 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:05:07,566 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:05:07,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1337487043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:05:07,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:05:07,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:05:07,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246317610] [2022-11-23 14:05:07,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:05:07,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:05:07,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:05:07,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:05:07,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 14:05:07,577 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:05:09,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:05:12,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:05:18,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:05:19,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:05:22,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:05:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:05:23,524 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-23 14:05:23,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:05:23,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-23 14:05:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:05:23,527 INFO L225 Difference]: With dead ends: 310 [2022-11-23 14:05:23,527 INFO L226 Difference]: Without dead ends: 161 [2022-11-23 14:05:23,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 14:05:23,530 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 14 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:05:23,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 602 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2022-11-23 14:05:23,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-23 14:05:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-23 14:05:23,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 14:05:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 14:05:23,578 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 14:05:23,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:05:23,578 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 14:05:23,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:05:23,579 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 14:05:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:05:23,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:05:23,588 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:23,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:05:23,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 14:05:23,802 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:05:23,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:05:23,802 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-23 14:05:23,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:05:23,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203774439] [2022-11-23 14:05:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:23,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:05:24,026 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:05:24,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415553611] [2022-11-23 14:05:24,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:05:24,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:05:24,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:05:24,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:05:24,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:05:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:05:25,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:05:25,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:05:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:05:25,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:05:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:05:25,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:05:25,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203774439] [2022-11-23 14:05:25,571 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:05:25,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415553611] [2022-11-23 14:05:25,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415553611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:05:25,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [642342021] [2022-11-23 14:05:25,576 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:05:25,577 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:05:25,577 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:05:25,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:05:25,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:05:25,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,708 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:05:25,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 14:05:25,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:05:25,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,785 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:05:25,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 14:05:25,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:05:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,873 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:05:25,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 14:05:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:05:25,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 14:05:25,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:25,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:05:26,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:05:26,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:05:26,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:05:26,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:05:26,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:05:26,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:05:26,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:05:26,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:05:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:05:26,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:05:26,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:05:26,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:26,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,048 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:05:27,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 14:05:27,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,154 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:05:27,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 14:05:27,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:05:27,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:05:27,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:27,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:05:28,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 14:05:28,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,152 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 9897003 treesize of output 5376293 [2022-11-23 14:05:28,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,218 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 9897003 treesize of output 5376293 [2022-11-23 14:05:28,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:05:28,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:05:28,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:05:28,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:05:28,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:05:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,519 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:05:28,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 14:05:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:05:28,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-23 14:05:28,996 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 14:05:29,109 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:05:36,591 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:05:44,315 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:05:54,601 WARN L233 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:06:07,516 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:06:24,551 WARN L233 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 14:06:25,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [642342021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:06:25,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:06:25,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:06:25,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408594224] [2022-11-23 14:06:25,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:06:25,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:06:25,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:06:25,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:06:25,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:06:25,273 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:06:27,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:30,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:32,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:34,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:36,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:38,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:40,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:42,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:44,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:51,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:06:52,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:06:54,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:06:57,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:06:57,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:06:57,590 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 14:06:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:06:57,591 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-23 14:06:57,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:06:57,593 INFO L225 Difference]: With dead ends: 315 [2022-11-23 14:06:57,593 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 14:06:57,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.2s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:06:57,595 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 10 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:06:57,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 371 Invalid, 11 Unknown, 0 Unchecked, 32.3s Time] [2022-11-23 14:06:57,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 14:06:57,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 14:06:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 14:06:57,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 14:06:57,660 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 14:06:57,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:06:57,660 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 14:06:57,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:06:57,661 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 14:06:57,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:06:57,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:57,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:06:57,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:06:57,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:57,874 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:06:57,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:57,875 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-23 14:06:57,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:06:57,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774448220] [2022-11-23 14:06:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:57,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:06:58,082 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:06:58,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [859500056] [2022-11-23 14:06:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:58,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:06:58,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:06:58,085 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:06:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bdd3a45-f0f0-4d3e-b912-c57fa5820b5c/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:06:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:06:59,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:06:59,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:06:59,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:06:59,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:06:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:06:59,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:06:59,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774448220] [2022-11-23 14:06:59,835 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:06:59,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859500056] [2022-11-23 14:06:59,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859500056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:06:59,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1311626970] [2022-11-23 14:06:59,840 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:06:59,840 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:06:59,841 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:06:59,841 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:06:59,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:06:59,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:06:59,937 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:06:59,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 14:06:59,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:06:59,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:06:59,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:06:59,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:06:59,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:06:59,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,037 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:07:00,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 14:07:00,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,161 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:07:00,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 14:07:00,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:07:00,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 14:07:00,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 14:07:00,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:07:00,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 14:07:00,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 14:07:00,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:07:00,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:07:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:07:00,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:07:00,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:07:00,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:07:00,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:00,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,066 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:07:01,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 14:07:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,179 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:07:01,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 14:07:01,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 14:07:01,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:07:01,466 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:07:01,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:01,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:07:01,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:07:01,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 14:07:01,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:07:01,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:07:01,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:07:01,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:07:01,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:01,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:07:01,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:07:01,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:07:02,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:07:02,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 14:07:02,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:07:02,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:07:03,592 INFO L217 Elim1Store]: Index analysis took 1074 ms [2022-11-23 14:07:10,194 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:07:10,194 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:07:10,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-23 14:07:11,724 INFO L217 Elim1Store]: Index analysis took 1289 ms [2022-11-23 14:07:12,438 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:07:12,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-23 14:10:36,769 WARN L233 SmtUtils]: Spent 3.40m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:10:36,770 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-23 14:10:36,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-23 14:10:37,355 INFO L217 Elim1Store]: Index analysis took 214 ms [2022-11-23 14:12:48,851 WARN L233 SmtUtils]: Spent 2.19m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:12:48,851 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:12:48,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-11-23 14:12:57,120 INFO L217 Elim1Store]: Index analysis took 5921 ms