./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/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 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- 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 14:20:43,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:20:43,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:20:43,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:20:43,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:20:43,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:20:43,612 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:20:43,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:20:43,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:20:43,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:20:43,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:20:43,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:20:43,616 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:20:43,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:20:43,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:20:43,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:20:43,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:20:43,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:20:43,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:20:43,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:20:43,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:20:43,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:20:43,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:20:43,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:20:43,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:20:43,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:20:43,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:20:43,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:20:43,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:20:43,629 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:20:43,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:20:43,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:20:43,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:20:43,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:20:43,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:20:43,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:20:43,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:20:43,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:20:43,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:20:43,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:20:43,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:20:43,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 14:20:43,656 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:20:43,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:20:43,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:20:43,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:20:43,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:20:43,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:20:43,658 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:20:43,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:20:43,658 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:20:43,658 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:20:43,659 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:20:43,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:20:43,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:20:43,659 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:20:43,659 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:20:43,659 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:20:43,660 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:20:43,660 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:20:43,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:20:43,660 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:20:43,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:20:43,662 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:20:43,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:20:43,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:20:43,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:20:43,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:20:43,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:20:43,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:20:43,663 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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2022-12-14 14:20:43,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:20:43,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:20:43,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:20:43,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:20:43,885 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:20:43,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-12-14 14:20:46,458 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:20:46,643 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:20:46,644 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-12-14 14:20:46,654 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/data/34aca9b91/af3441cd75974ebd93789d75a1f6a0f1/FLAG9e7db4c86 [2022-12-14 14:20:46,665 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/data/34aca9b91/af3441cd75974ebd93789d75a1f6a0f1 [2022-12-14 14:20:46,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:20:46,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:20:46,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:20:46,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:20:46,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:20:46,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:20:46" (1/1) ... [2022-12-14 14:20:46,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d62975d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:46, skipping insertion in model container [2022-12-14 14:20:46,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:20:46" (1/1) ... [2022-12-14 14:20:46,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:20:46,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:20:46,988 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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-12-14 14:20:47,095 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:20:47,097 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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-12-14 14:20:47,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:20:47,133 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:20:47,164 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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-12-14 14:20:47,252 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:20:47,261 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_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-12-14 14:20:47,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:20:47,293 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:20:47,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47 WrapperNode [2022-12-14 14:20:47,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:20:47,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:20:47,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:20:47,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:20:47,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,374 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-12-14 14:20:47,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:20:47,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:20:47,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:20:47,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:20:47,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,439 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:20:47,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:20:47,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:20:47,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:20:47,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (1/1) ... [2022-12-14 14:20:47,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:20:47,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:47,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:20:47,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 14:20:47,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:20:47,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:20:47,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:20:47,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:20:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:20:47,695 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:20:47,697 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:20:49,130 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:20:49,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:20:49,607 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-12-14 14:20:49,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:20:49 BoogieIcfgContainer [2022-12-14 14:20:49,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:20:49,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:20:49,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:20:49,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:20:49,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:20:46" (1/3) ... [2022-12-14 14:20:49,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3437e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:20:49, skipping insertion in model container [2022-12-14 14:20:49,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:20:47" (2/3) ... [2022-12-14 14:20:49,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3437e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:20:49, skipping insertion in model container [2022-12-14 14:20:49,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:20:49" (3/3) ... [2022-12-14 14:20:49,618 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2022-12-14 14:20:49,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:20:49,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:20:49,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:20:49,691 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;@25a82f59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:20:49,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:20:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:20:49,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:20:49,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:49,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:20:49,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:20:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-12-14 14:20:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:49,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682206482] [2022-12-14 14:20:49,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:49,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:49,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682206482] [2022-12-14 14:20:49,836 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 14:20:49,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802038063] [2022-12-14 14:20:49,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:49,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:49,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:49,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:49,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:20:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:50,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 14:20:50,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:50,076 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 14:20:50,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:20:50,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802038063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:50,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:50,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:20:50,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387396164] [2022-12-14 14:20:50,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:20:50,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:20:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:20:50,107 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:20:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:51,062 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-12-14 14:20:51,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:20:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 14:20:51,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:51,074 INFO L225 Difference]: With dead ends: 353 [2022-12-14 14:20:51,074 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 14:20:51,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:20:51,081 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:51,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 14:20:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 14:20:51,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 14:20:51,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:20:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 14:20:51,122 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 14:20:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:51,122 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 14:20:51,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:20:51,122 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 14:20:51,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:20:51,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:51,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:20:51,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:20:51,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 14:20:51,326 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:20:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-12-14 14:20:51,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:51,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763939831] [2022-12-14 14:20:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:51,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:51,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:51,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763939831] [2022-12-14 14:20:51,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 14:20:51,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721251078] [2022-12-14 14:20:51,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:51,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:51,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:51,398 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:51,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:20:51,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:51,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:20:51,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:51,607 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 14:20:51,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:20:51,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721251078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:20:51,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:20:51,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:20:51,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198655473] [2022-12-14 14:20:51,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:20:51,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:20:51,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:20:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:20:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:20:51,610 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:20:53,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:20:53,299 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 14:20:53,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:20:53,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-12-14 14:20:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:20:53,305 INFO L225 Difference]: With dead ends: 342 [2022-12-14 14:20:53,305 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 14:20:53,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:20:53,306 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:20:53,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-12-14 14:20:53,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 14:20:53,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 14:20:53,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:20:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 14:20:53,318 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 14:20:53,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:20:53,318 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 14:20:53,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:20:53,318 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 14:20:53,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 14:20:53,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:20:53,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:20:53,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:20:53,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:53,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:20:53,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:20:53,523 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-12-14 14:20:53,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:20:53,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896289619] [2022-12-14 14:20:53,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:53,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:20:53,714 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:20:53,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [162580504] [2022-12-14 14:20:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:20:53,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:20:53,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:20:53,715 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:20:53,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:20:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:20:54,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:20:54,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:20:54,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:20:54,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:20:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:20:54,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:20:54,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896289619] [2022-12-14 14:20:54,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:20:54,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162580504] [2022-12-14 14:20:54,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162580504] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:20:54,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1206512486] [2022-12-14 14:20:54,760 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 14:20:54,760 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:20:54,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:20:54,768 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:20:54,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:20:54,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,878 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 14:20:54,879 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 14:20:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 14:20:54,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,958 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 14:20:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:20:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,979 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 14:20:54,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 14:20:54,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:54,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,013 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 14:20:55,013 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 14:20:55,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,033 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 14:20:55,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 14:20:55,396 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 14:20:55,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:20:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 14:20:55,499 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 14:20:55,781 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 14:20:55,795 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 14:20:55,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:20:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:20:55,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 14:20:55,894 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:21:02,256 WARN L233 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:21:11,804 WARN L233 SmtUtils]: Spent 7.47s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:21:11,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1206512486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:21:11,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 14:21:11,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 14:21:11,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021107161] [2022-12-14 14:21:11,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:21:11,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:21:11,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:21:11,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:21:11,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 14:21:11,808 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:21:14,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:21:16,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:21:23,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:21:23,248 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-12-14 14:21:23,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:21:23,249 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-12-14 14:21:23,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:21:23,250 INFO L225 Difference]: With dead ends: 310 [2022-12-14 14:21:23,250 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 14:21:23,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-12-14 14:21:23,252 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:21:23,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-12-14 14:21:23,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 14:21:23,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 14:21:23,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 14:21:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 14:21:23,271 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 14:21:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:21:23,271 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 14:21:23,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:21:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 14:21:23,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 14:21:23,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:21:23,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:21:23,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:21:23,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:23,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:21:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:21:23,475 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-12-14 14:21:23,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:21:23,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910337853] [2022-12-14 14:21:23,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:23,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:21:23,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:21:23,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1158128118] [2022-12-14 14:21:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:21:23,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:21:23,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:21:23,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:21:23,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:21:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:21:24,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:21:24,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:21:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:21:24,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:21:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 14:21:24,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:21:24,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910337853] [2022-12-14 14:21:24,520 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:21:24,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158128118] [2022-12-14 14:21:24,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158128118] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:21:24,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43845549] [2022-12-14 14:21:24,525 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 14:21:24,525 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:21:24,525 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:21:24,526 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:21:24,526 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:21:24,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,603 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 14:21:24,604 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 14:21:24,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 14:21:24,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,665 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 14:21:24,666 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 14:21:24,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,680 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 14:21:24,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,715 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 14:21:24,715 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 14:21:24,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:21:24,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 14:21:24,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:24,743 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 14:21:25,003 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 14:21:25,018 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 14:21:25,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:21:25,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 14:21:25,124 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 14:21:25,136 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 14:21:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:21:25,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:21:25,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:21:25,297 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 14:21:25,314 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 14:21:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,365 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 14:21:25,366 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 14:21:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,421 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 14:21:25,422 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 14:21:25,878 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 14:21:25,892 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 14:21:25,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:21:25,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 14:21:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-12-14 14:21:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-12-14 14:21:26,072 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 14:21:26,087 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 14:21:26,121 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 14:21:26,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:21:26,179 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 14:21:26,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,236 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 14:21:26,236 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 14:21:26,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:21:26,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-12-14 14:21:26,485 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 14:21:26,562 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 14:21:32,445 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:21:39,732 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:21:49,701 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:22:02,618 WARN L233 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:22:17,376 WARN L233 SmtUtils]: Spent 8.60s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 14:22:17,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [43845549] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:22:17,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 14:22:17,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 14:22:17,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717098337] [2022-12-14 14:22:17,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:22:17,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 14:22:17,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:22:17,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 14:22:17,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 14:22:17,895 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 14:22:20,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:22,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:24,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:26,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:28,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:30,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:32,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:34,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:36,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:41,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:22:42,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 14:22:43,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:22:48,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:22:49,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:22:49,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:22:49,623 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 14:22:49,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 14:22:49,624 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 14:22:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:22:49,625 INFO L225 Difference]: With dead ends: 315 [2022-12-14 14:22:49,625 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 14:22:49,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 51.3s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 14:22:49,626 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:22:49,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 378 Invalid, 9 Unknown, 0 Unchecked, 31.7s Time] [2022-12-14 14:22:49,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 14:22:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 14:22:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 14:22:49,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 14:22:49,647 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 14:22:49,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:22:49,647 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 14:22:49,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 14:22:49,648 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 14:22:49,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 14:22:49,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:22:49,650 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:22:49,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:22:49,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:22:49,852 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:22:49,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:22:49,853 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-12-14 14:22:49,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:22:49,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108480361] [2022-12-14 14:22:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:49,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:22:49,987 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:22:49,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2096876106] [2022-12-14 14:22:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:22:49,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:22:49,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:22:49,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:22:49,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b861fe89-4229-4b7b-b9db-3a1c53ea4abb/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:22:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:22:50,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:22:50,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:22:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:22:50,723 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:22:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 14:22:50,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:22:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108480361] [2022-12-14 14:22:50,783 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:22:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096876106] [2022-12-14 14:22:50,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096876106] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:22:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1009497261] [2022-12-14 14:22:50,787 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 14:22:50,787 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 14:22:50,787 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 14:22:50,787 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 14:22:50,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 14:22:50,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,840 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 14:22:50,841 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 14:22:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 14:22:50,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,868 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 14:22:50,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,897 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 14:22:50,897 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 14:22:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,936 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 14:22:50,936 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 14:22:50,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,949 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 14:22:50,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 14:22:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:50,963 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 14:22:51,167 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 14:22:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 14:22:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 14:22:51,246 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 14:22:51,264 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 14:22:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:22:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:22:51,350 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 14:22:51,383 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 14:22:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,440 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 14:22:51,441 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 14:22:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,492 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 14:22:51,493 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 14:22:51,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 14:22:51,552 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 14:22:51,649 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 14:22:51,652 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 14:22:51,657 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 14:22:51,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 14:22:51,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 14:22:51,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 14:22:51,707 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 14:22:51,711 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 14:22:51,716 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 14:22:51,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 14:22:51,792 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 14:22:51,805 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 14:22:51,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:22:51,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 14:22:51,926 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 14:22:51,943 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 14:22:52,859 INFO L217 Elim1Store]: Index analysis took 704 ms [2022-12-14 14:22:58,532 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:22:58,533 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 14:22:58,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-12-14 14:22:59,504 INFO L217 Elim1Store]: Index analysis took 853 ms [2022-12-14 14:23:00,091 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 14:23:00,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-12-14 14:25:56,027 WARN L233 SmtUtils]: Spent 2.93m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:25:56,028 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-12-14 14:25:56,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-12-14 14:25:56,618 INFO L217 Elim1Store]: Index analysis took 310 ms [2022-12-14 14:27:07,761 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 14:27:07,761 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 14:27:07,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-12-14 14:27:10,954 INFO L217 Elim1Store]: Index analysis took 1888 ms