./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:05:30,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:05:30,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:05:30,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:05:30,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:05:30,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:05:30,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:05:30,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:05:30,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:05:30,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:05:30,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:05:30,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:05:30,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:05:30,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:05:30,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:05:30,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:05:30,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:05:30,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:05:30,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:05:30,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:05:30,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:05:30,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:05:30,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:05:30,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:05:30,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:05:30,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:05:30,651 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:05:30,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:05:30,652 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:05:30,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:05:30,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:05:30,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:05:30,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:05:30,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:05:30,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:05:30,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:05:30,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:05:30,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:05:30,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:05:30,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:05:30,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:05:30,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:05:30,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:05:30,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:05:30,670 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:05:30,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:05:30,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:05:30,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:05:30,671 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:05:30,672 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:05:30,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:05:30,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:05:30,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:05:30,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:30,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:05:30,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:05:30,674 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_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2022-12-14 11:05:30,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:05:30,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:05:30,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:05:30,865 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:05:30,866 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:05:30,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2022-12-14 11:05:33,414 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:05:33,605 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:05:33,605 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2022-12-14 11:05:33,615 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/data/0f4feecc0/08c1109483954dacab8fce4140ee70cb/FLAG6ef8a4d98 [2022-12-14 11:05:33,974 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/data/0f4feecc0/08c1109483954dacab8fce4140ee70cb [2022-12-14 11:05:33,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:05:33,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:05:33,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:33,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:05:33,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:05:33,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:33" (1/1) ... [2022-12-14 11:05:33,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea67244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:33, skipping insertion in model container [2022-12-14 11:05:33,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:33" (1/1) ... [2022-12-14 11:05:34,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:05:34,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:05:34,270 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_fe4206d4-542f-43d0-8522-f1519e409434/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2022-12-14 11:05:34,328 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:05:34,334 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_fe4206d4-542f-43d0-8522-f1519e409434/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2022-12-14 11:05:34,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:34,346 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:05:34,366 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_fe4206d4-542f-43d0-8522-f1519e409434/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2022-12-14 11:05:34,397 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 11:05:34,402 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_fe4206d4-542f-43d0-8522-f1519e409434/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2022-12-14 11:05:34,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:34,452 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:05:34,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34 WrapperNode [2022-12-14 11:05:34,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:34,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:34,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:05:34,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:05:34,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,536 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1022 [2022-12-14 11:05:34,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:34,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:05:34,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:05:34,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:05:34,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:05:34,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:05:34,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:05:34,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:05:34,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (1/1) ... [2022-12-14 11:05:34,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:34,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:34,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:05:34,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 11:05:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 11:05:34,687 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:05:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:05:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:05:34,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:05:34,846 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:05:34,848 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:05:35,923 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:05:36,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:05:36,200 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-12-14 11:05:36,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:36 BoogieIcfgContainer [2022-12-14 11:05:36,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:05:36,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:05:36,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:05:36,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:05:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:05:33" (1/3) ... [2022-12-14 11:05:36,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26265978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:36, skipping insertion in model container [2022-12-14 11:05:36,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:34" (2/3) ... [2022-12-14 11:05:36,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26265978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:36, skipping insertion in model container [2022-12-14 11:05:36,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:36" (3/3) ... [2022-12-14 11:05:36,209 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2022-12-14 11:05:36,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:05:36,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:05:36,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:05:36,264 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;@6fca6cd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:05:36,264 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:05:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:36,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:05:36,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:36,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:36,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:36,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:36,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1898435451, now seen corresponding path program 1 times [2022-12-14 11:05:36,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:36,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376899514] [2022-12-14 11:05:36,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:05:36,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:36,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376899514] [2022-12-14 11:05:36,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376899514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:36,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:36,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:05:36,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684484387] [2022-12-14 11:05:36,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:36,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:05:36,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:05:36,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:05:36,425 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-12-14 11:05:36,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:36,764 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2022-12-14 11:05:36,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:05:36,770 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-12-14 11:05:36,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:36,776 INFO L225 Difference]: With dead ends: 245 [2022-12-14 11:05:36,776 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 11:05:36,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:05:36,781 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:36,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 11:05:36,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 11:05:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2022-12-14 11:05:36,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-12-14 11:05:36,818 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2022-12-14 11:05:36,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:36,819 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-12-14 11:05:36,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-12-14 11:05:36,819 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-12-14 11:05:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 11:05:36,820 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:36,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:36,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:05:36,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:36,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:36,821 INFO L85 PathProgramCache]: Analyzing trace with hash -94655351, now seen corresponding path program 1 times [2022-12-14 11:05:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:36,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090987490] [2022-12-14 11:05:36,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:36,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:36,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:05:36,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:36,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090987490] [2022-12-14 11:05:36,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090987490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:36,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:36,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:05:36,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886352463] [2022-12-14 11:05:36,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:36,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:05:36,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:36,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:05:36,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:05:36,972 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:05:38,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 11:05:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:38,834 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2022-12-14 11:05:38,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:05:38,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 11:05:38,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:38,839 INFO L225 Difference]: With dead ends: 258 [2022-12-14 11:05:38,839 INFO L226 Difference]: Without dead ends: 189 [2022-12-14 11:05:38,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:05:38,841 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:38,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 355 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 11:05:38,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-12-14 11:05:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2022-12-14 11:05:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2022-12-14 11:05:38,852 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2022-12-14 11:05:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:38,852 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2022-12-14 11:05:38,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:05:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2022-12-14 11:05:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 11:05:38,853 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:38,853 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 11:05:38,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:05:38,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:38,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:38,854 INFO L85 PathProgramCache]: Analyzing trace with hash 339208180, now seen corresponding path program 1 times [2022-12-14 11:05:38,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:38,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490091137] [2022-12-14 11:05:38,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:38,966 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:05:38,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334535733] [2022-12-14 11:05:38,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:38,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:38,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:38,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:38,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 11:05:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:39,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 1630 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:05:39,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:05:39,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:05:39,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:39,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490091137] [2022-12-14 11:05:39,509 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:05:39,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334535733] [2022-12-14 11:05:39,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334535733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:39,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:39,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:05:39,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927537812] [2022-12-14 11:05:39,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:39,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:05:39,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:39,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:05:39,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:05:39,511 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:05:40,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:40,399 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2022-12-14 11:05:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:05:40,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-12-14 11:05:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:40,405 INFO L225 Difference]: With dead ends: 304 [2022-12-14 11:05:40,405 INFO L226 Difference]: Without dead ends: 183 [2022-12-14 11:05:40,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:05:40,406 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:40,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 278 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 11:05:40,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-12-14 11:05:40,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-12-14 11:05:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2022-12-14 11:05:40,415 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2022-12-14 11:05:40,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:40,415 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2022-12-14 11:05:40,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:05:40,415 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2022-12-14 11:05:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-14 11:05:40,416 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:40,416 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 11:05:40,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:05:40,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:40,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1571641394, now seen corresponding path program 1 times [2022-12-14 11:05:40,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374964398] [2022-12-14 11:05:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:40,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:40,703 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:05:40,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448106374] [2022-12-14 11:05:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:40,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:40,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:40,705 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:40,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 11:05:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:40,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:05:40,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:41,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 11:05:41,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 11:05:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 11:05:41,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:05:41,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:41,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374964398] [2022-12-14 11:05:41,054 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:05:41,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448106374] [2022-12-14 11:05:41,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448106374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:41,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:41,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:05:41,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31906093] [2022-12-14 11:05:41,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:41,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:05:41,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:41,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:05:41,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:05:41,056 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:42,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:42,328 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2022-12-14 11:05:42,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:05:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2022-12-14 11:05:42,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:42,332 INFO L225 Difference]: With dead ends: 231 [2022-12-14 11:05:42,333 INFO L226 Difference]: Without dead ends: 212 [2022-12-14 11:05:42,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:05:42,333 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 47 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:42,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 354 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 11:05:42,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-12-14 11:05:42,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2022-12-14 11:05:42,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-12-14 11:05:42,342 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2022-12-14 11:05:42,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:42,342 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-12-14 11:05:42,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-12-14 11:05:42,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 11:05:42,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:42,343 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 11:05:42,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 11:05:42,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:42,545 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:42,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2144578966, now seen corresponding path program 1 times [2022-12-14 11:05:42,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:42,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622728054] [2022-12-14 11:05:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:42,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:42,610 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:05:42,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106224739] [2022-12-14 11:05:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:42,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:42,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:42,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 11:05:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:42,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 11:05:42,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:42,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 11:05:42,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:05:42,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:42,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622728054] [2022-12-14 11:05:42,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:05:42,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106224739] [2022-12-14 11:05:42,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106224739] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:42,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:42,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:05:42,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367759662] [2022-12-14 11:05:42,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:42,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:05:42,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:42,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:05:42,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:05:42,996 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:43,688 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2022-12-14 11:05:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:05:43,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-12-14 11:05:43,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:43,690 INFO L225 Difference]: With dead ends: 395 [2022-12-14 11:05:43,690 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 11:05:43,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:05:43,692 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 260 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:43,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 290 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 11:05:43,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 11:05:43,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2022-12-14 11:05:43,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 11:05:43,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2022-12-14 11:05:43,710 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2022-12-14 11:05:43,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:43,710 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2022-12-14 11:05:43,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:43,711 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2022-12-14 11:05:43,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-14 11:05:43,712 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:43,713 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-12-14 11:05:43,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 11:05:43,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:43,914 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:43,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2121750984, now seen corresponding path program 1 times [2022-12-14 11:05:43,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:43,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049916168] [2022-12-14 11:05:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:43,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:43,959 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:05:43,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410887031] [2022-12-14 11:05:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:43,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:43,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:43,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 11:05:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:54,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:05:54,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:05:54,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:05:54,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049916168] [2022-12-14 11:05:54,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:05:54,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410887031] [2022-12-14 11:05:54,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410887031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:54,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:54,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:05:54,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496222362] [2022-12-14 11:05:54,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:54,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:05:54,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:54,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:05:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:05:54,063 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:54,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:54,856 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2022-12-14 11:05:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:05:54,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2022-12-14 11:05:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:54,860 INFO L225 Difference]: With dead ends: 411 [2022-12-14 11:05:54,861 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 11:05:54,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:05:54,862 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:54,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 392 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 11:05:54,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 11:05:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2022-12-14 11:05:54,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-12-14 11:05:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2022-12-14 11:05:54,877 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2022-12-14 11:05:54,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:54,877 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2022-12-14 11:05:54,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 11:05:54,877 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2022-12-14 11:05:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 11:05:54,879 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:54,879 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2022-12-14 11:05:54,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 11:05:55,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:55,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:05:55,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash -869473738, now seen corresponding path program 1 times [2022-12-14 11:05:55,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:55,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103703279] [2022-12-14 11:05:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:55,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:55,218 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 11:05:55,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137245638] [2022-12-14 11:05:55,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:55,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 11:05:55,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:55,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 11:05:55,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe4206d4-542f-43d0-8522-f1519e409434/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 11:06:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:06:27,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 11:06:27,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:06:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 11:06:27,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 11:06:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 11:06:27,310 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:06:27,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103703279] [2022-12-14 11:06:27,310 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 11:06:27,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137245638] [2022-12-14 11:06:27,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137245638] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 11:06:27,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [932352437] [2022-12-14 11:06:27,329 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-12-14 11:06:27,329 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 11:06:27,331 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 11:06:27,335 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 11:06:27,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 11:06:27,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 11:06:27,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 11:06:27,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,419 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 11:06:27,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 11:06:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 11:06:27,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,452 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 11:06:27,453 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 [2022-12-14 11:06:27,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,496 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:06:27,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2022-12-14 11:06:27,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,535 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 11:06:27,536 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 [2022-12-14 11:06:27,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 11:06:27,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,597 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 11:06:27,598 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 [2022-12-14 11:06:27,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 11:06:27,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-12-14 11:06:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:27,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-12-14 11:06:27,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 11:06:27,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 11:06:27,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 11:06:28,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 11:06:28,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 11:06:28,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 11:06:28,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-12-14 11:06:28,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:06:28,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,262 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 11:06:28,263 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 [2022-12-14 11:06:28,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,326 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 11:06:28,326 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 [2022-12-14 11:06:28,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 11:06:28,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 11:06:28,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 11:06:28,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 11:06:28,522 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:06:28,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 11:06:28,544 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 11:06:28,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 11:06:28,564 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 11:06:28,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 11:06:28,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 11:06:28,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 11:06:28,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 11:06:28,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 11:06:28,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 11:06:28,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 11:06:28,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 11:06:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:06:28,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-12-14 11:06:28,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 11:06:29,629 INFO L217 Elim1Store]: Index analysis took 504 ms [2022-12-14 11:06:33,604 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 11:06:33,605 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 9519777 treesize of output 9519796 [2022-12-14 11:06:34,485 INFO L217 Elim1Store]: Index analysis took 751 ms [2022-12-14 11:06:34,933 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 11:06:34,933 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 9519772 treesize of output 9519776 [2022-12-14 11:06:42,817 WARN L233 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:06:42,818 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 11:06:42,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-12-14 11:06:43,090 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-12-14 11:07:03,778 WARN L233 SmtUtils]: Spent 20.69s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:07:03,778 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 11:07:03,779 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 2005 treesize of output 1834 [2022-12-14 11:07:05,308 INFO L217 Elim1Store]: Index analysis took 1128 ms [2022-12-14 11:07:29,063 WARN L233 SmtUtils]: Spent 22.90s on a formula simplification. DAG size of input: 258 DAG size of output: 156 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:07:29,064 INFO L321 Elim1Store]: treesize reduction 13218, result has 27.3 percent of original size [2022-12-14 11:07:29,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 3622 treesize of output 7921 [2022-12-14 11:07:30,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:07:30,145 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-12-14 11:07:30,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:07:30,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:07:30,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:07:30,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-12-14 11:07:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:07:31,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 14 [2022-12-14 11:07:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:07:31,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-12-14 11:07:34,000 INFO L321 Elim1Store]: treesize reduction 550, result has 14.1 percent of original size [2022-12-14 11:07:34,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 14 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 16 new quantified variables, introduced 18 case distinctions, treesize of input 51016 treesize of output 53256 [2022-12-14 11:07:40,218 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:07:40,754 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:07:40,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40854 [2022-12-14 11:07:41,493 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:07:47,784 INFO L321 Elim1Store]: treesize reduction 185, result has 49.9 percent of original size [2022-12-14 11:07:47,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 66514 treesize of output 65984 [2022-12-14 11:07:48,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43142 treesize of output 43102 [2022-12-14 11:07:50,400 INFO L321 Elim1Store]: treesize reduction 17, result has 48.5 percent of original size [2022-12-14 11:07:50,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40846 treesize of output 40828 [2022-12-14 11:07:51,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 11:07:53,269 INFO L321 Elim1Store]: treesize reduction 45, result has 49.4 percent of original size [2022-12-14 11:07:53,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 56608 treesize of output 56496 [2022-12-14 11:08:20,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:20,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:20,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:20,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:21,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:22,999 INFO L217 Elim1Store]: Index analysis took 5009 ms [2022-12-14 11:08:23,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:23,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 545 treesize of output 4453 [2022-12-14 11:08:23,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 11:08:24,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:27,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,795 INFO L217 Elim1Store]: Index analysis took 5011 ms [2022-12-14 11:08:28,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:28,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-12-14 11:08:29,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:29,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,691 INFO L217 Elim1Store]: Index analysis took 3663 ms [2022-12-14 11:08:32,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:32,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2257 [2022-12-14 11:08:32,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:33,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:33,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-12-14 11:08:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:34,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:35,457 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:35,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:35,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:35,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,155 INFO L217 Elim1Store]: Index analysis took 2747 ms [2022-12-14 11:08:36,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:36,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2269 [2022-12-14 11:08:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:36,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:36,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 26 [2022-12-14 11:08:36,679 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:08:37,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:37,968 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,305 INFO L217 Elim1Store]: Index analysis took 1573 ms [2022-12-14 11:08:38,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:38,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 40009 treesize of output 43909 [2022-12-14 11:08:42,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:46,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,371 INFO L217 Elim1Store]: Index analysis took 5580 ms [2022-12-14 11:08:47,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:47,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2215 [2022-12-14 11:08:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:47,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:47,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 380 treesize of output 194 [2022-12-14 11:08:47,904 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:08:51,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:51,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:51,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:51,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:52,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,027 INFO L217 Elim1Store]: Index analysis took 4982 ms [2022-12-14 11:08:53,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:53,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 507 treesize of output 3942 [2022-12-14 11:08:53,306 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:08:54,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:57,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:57,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,144 INFO L217 Elim1Store]: Index analysis took 4620 ms [2022-12-14 11:08:58,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:58,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 2247 [2022-12-14 11:08:58,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:08:58,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 54 [2022-12-14 11:08:59,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,839 INFO L217 Elim1Store]: Index analysis took 1170 ms [2022-12-14 11:08:59,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:08:59,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 16 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 34295 treesize of output 38205 [2022-12-14 11:09:10,835 INFO L217 Elim1Store]: Index analysis took 6854 ms [2022-12-14 11:09:11,888 INFO L321 Elim1Store]: treesize reduction 538, result has 3.8 percent of original size [2022-12-14 11:09:11,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 14 case distinctions, treesize of input 403 treesize of output 2354 [2022-12-14 11:09:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:12,236 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-12-14 11:09:12,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:09:12,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 79 [2022-12-14 11:09:12,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:12,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2022-12-14 11:09:16,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:18,419 INFO L217 Elim1Store]: Index analysis took 5356 ms [2022-12-14 11:09:19,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 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 316 treesize of output 2350 [2022-12-14 11:09:19,456 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:20,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:20,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,850 INFO L217 Elim1Store]: Index analysis took 7394 ms [2022-12-14 11:09:26,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,861 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:26,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1409 treesize of output 3388 [2022-12-14 11:09:27,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:27,246 INFO L217 Elim1Store]: Index analysis took 197 ms [2022-12-14 11:09:27,635 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:09:27,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 1093 treesize of output 919 [2022-12-14 11:09:28,011 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:09:28,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:30,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:33,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:39,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,118 INFO L217 Elim1Store]: Index analysis took 12414 ms [2022-12-14 11:09:41,119 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,120 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,125 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,128 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:41,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 573 treesize of output 2471 [2022-12-14 11:09:41,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:41,831 INFO L217 Elim1Store]: Index analysis took 284 ms [2022-12-14 11:09:42,475 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 11:09:42,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 221 [2022-12-14 11:09:42,810 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:09:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:44,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:45,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:45,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:45,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:09:45,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,149 INFO L217 Elim1Store]: Index analysis took 3132 ms [2022-12-14 11:09:46,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:09:46,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 349 treesize of output 2287 [2022-12-14 11:09:46,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 11:09:46,706 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 11:11:01,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 11:11:02,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 11:11:03,108 INFO L217 Elim1Store]: Index analysis took 1956 ms [2022-12-14 11:11:03,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 15 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1905 treesize of output 16050 [2022-12-14 11:11:04,629 INFO L217 Elim1Store]: Index analysis took 396 ms [2022-12-14 11:12:45,242 WARN L233 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 222 DAG size of output: 42 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 11:12:45,245 INFO L321 Elim1Store]: treesize reduction 1365, result has 5.7 percent of original size [2022-12-14 11:12:45,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 38 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 33 new quantified variables, introduced 68 case distinctions, treesize of input 5645 treesize of output 94048