./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V --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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:53:42,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:53:42,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:53:42,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:53:42,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:53:42,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:53:42,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:53:42,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:53:42,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:53:42,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:53:42,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:53:42,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:53:42,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:53:42,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:53:42,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:53:42,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:53:42,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:53:42,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:53:42,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:53:42,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:53:42,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:53:42,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:53:42,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:53:42,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:53:42,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:53:42,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:53:42,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:53:42,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:53:42,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:53:42,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:53:42,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:53:42,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:53:42,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:53:42,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:53:42,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:53:42,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:53:42,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:53:42,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:53:42,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:53:42,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:53:42,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:53:42,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 01:53:42,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:53:42,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:53:42,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:53:42,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:53:42,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:53:42,931 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 01:53:42,932 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 01:53:42,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 01:53:42,932 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 01:53:42,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 01:53:42,933 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 01:53:42,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 01:53:42,934 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 01:53:42,934 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 01:53:42,934 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 01:53:42,935 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 01:53:42,935 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 01:53:42,935 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 01:53:42,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:53:42,936 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:53:42,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:53:42,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:53:42,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:53:42,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:53:42,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:53:42,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:53:42,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:53:42,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:53:42,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:53:42,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:53:42,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:53:42,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:53:42,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:53:42,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:53:42,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:53:42,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:53:42,942 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 01:53:42,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:53:42,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:53:42,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:53:42,943 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 01:53:42,943 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2021-11-23 01:53:43,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:53:43,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:53:43,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:53:43,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:53:43,253 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:53:43,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2021-11-23 01:53:43,339 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/data/e5f3dbcee/6616bfbfb61d46d785f9964e872393bd/FLAG819e48b5b [2021-11-23 01:53:44,142 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:53:44,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2021-11-23 01:53:44,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/data/e5f3dbcee/6616bfbfb61d46d785f9964e872393bd/FLAG819e48b5b [2021-11-23 01:53:44,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/data/e5f3dbcee/6616bfbfb61d46d785f9964e872393bd [2021-11-23 01:53:44,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:53:44,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:53:44,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:53:44,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:53:44,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:53:44,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:44" (1/1) ... [2021-11-23 01:53:44,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c1761c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:44, skipping insertion in model container [2021-11-23 01:53:44,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:44" (1/1) ... [2021-11-23 01:53:44,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:53:44,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:53:44,955 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2021-11-23 01:53:45,175 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2021-11-23 01:53:45,176 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2021-11-23 01:53:45,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:53:45,226 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:53:45,282 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[33021,33034] [2021-11-23 01:53:45,378 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44124,44137] [2021-11-23 01:53:45,385 WARN L230 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_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i[44245,44258] [2021-11-23 01:53:45,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:53:45,446 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:53:45,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45 WrapperNode [2021-11-23 01:53:45,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:53:45,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:53:45,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:53:45,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:53:45,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,598 INFO L137 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1151 [2021-11-23 01:53:45,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:53:45,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:53:45,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:53:45,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:53:45,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,623 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,738 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:53:45,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:53:45,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:53:45,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:53:45,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (1/1) ... [2021-11-23 01:53:45,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:53:45,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:53:45,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 01:53:45,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 01:53:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:53:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:53:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 01:53:45,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 01:53:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:53:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:53:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:53:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:53:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 01:53:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:53:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:53:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:53:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:53:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:53:46,179 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:53:46,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:53:47,411 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:53:47,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:53:47,874 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 01:53:47,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:47 BoogieIcfgContainer [2021-11-23 01:53:47,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:53:47,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 01:53:47,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 01:53:47,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 01:53:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:53:44" (1/3) ... [2021-11-23 01:53:47,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605ba1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:47, skipping insertion in model container [2021-11-23 01:53:47,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:45" (2/3) ... [2021-11-23 01:53:47,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@605ba1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:53:47, skipping insertion in model container [2021-11-23 01:53:47,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:53:47" (3/3) ... [2021-11-23 01:53:47,889 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2021-11-23 01:53:47,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 01:53:47,898 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 01:53:47,967 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 01:53:47,984 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 01:53:47,984 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 01:53:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:53:48,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:48,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:48,013 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:48,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:48,018 INFO L85 PathProgramCache]: Analyzing trace with hash 2062520436, now seen corresponding path program 1 times [2021-11-23 01:53:48,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:48,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630965569] [2021-11-23 01:53:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:48,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:53:48,209 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:48,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630965569] [2021-11-23 01:53:48,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630965569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:48,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:48,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:53:48,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808584704] [2021-11-23 01:53:48,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:48,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 01:53:48,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:48,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 01:53:48,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:53:48,283 INFO L87 Difference]: Start difference. First operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 01:53:49,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:53:49,249 INFO L93 Difference]: Finished difference Result 243 states and 427 transitions. [2021-11-23 01:53:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 01:53:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-23 01:53:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:53:49,271 INFO L225 Difference]: With dead ends: 243 [2021-11-23 01:53:49,272 INFO L226 Difference]: Without dead ends: 107 [2021-11-23 01:53:49,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 01:53:49,279 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 01:53:49,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 120 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 01:53:49,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-23 01:53:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-23 01:53:49,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-23 01:53:49,330 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-23 01:53:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:53:49,330 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-23 01:53:49,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 01:53:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-23 01:53:49,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:53:49,332 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:49,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:49,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 01:53:49,333 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:49,334 INFO L85 PathProgramCache]: Analyzing trace with hash -75086937, now seen corresponding path program 1 times [2021-11-23 01:53:49,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:49,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551995341] [2021-11-23 01:53:49,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:49,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:49,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:53:49,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:49,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551995341] [2021-11-23 01:53:49,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551995341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:49,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:49,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 01:53:49,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052796396] [2021-11-23 01:53:49,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:49,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:53:49,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:49,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:53:49,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:53:49,407 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-23 01:53:51,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:53:51,023 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-23 01:53:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:53:51,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-23 01:53:51,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:53:51,033 INFO L225 Difference]: With dead ends: 219 [2021-11-23 01:53:51,034 INFO L226 Difference]: Without dead ends: 165 [2021-11-23 01:53:51,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:53:51,036 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 01:53:51,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-23 01:53:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-23 01:53:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-23 01:53:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-23 01:53:51,053 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-23 01:53:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:53:51,054 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-23 01:53:51,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-23 01:53:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-23 01:53:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:53:51,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:51,057 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:51,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 01:53:51,057 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:51,058 INFO L85 PathProgramCache]: Analyzing trace with hash -135765108, now seen corresponding path program 1 times [2021-11-23 01:53:51,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:51,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349516829] [2021-11-23 01:53:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:51,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:51,103 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 01:53:51,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354557047] [2021-11-23 01:53:51,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:51,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:53:51,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:53:51,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 01:53:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:53:51,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:53:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:53:51,595 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:53:51,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:51,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349516829] [2021-11-23 01:53:51,596 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 01:53:51,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354557047] [2021-11-23 01:53:51,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354557047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:51,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:51,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 01:53:51,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743992919] [2021-11-23 01:53:51,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:51,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 01:53:51,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:51,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 01:53:51,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:53:51,600 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-11-23 01:53:53,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 01:53:53,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:53:53,848 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-23 01:53:53,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 01:53:53,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-23 01:53:53,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:53:53,869 INFO L225 Difference]: With dead ends: 265 [2021-11-23 01:53:53,869 INFO L226 Difference]: Without dead ends: 159 [2021-11-23 01:53:53,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 01:53:53,872 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 01:53:53,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 01:53:53,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-23 01:53:53,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-23 01:53:53,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:53,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-23 01:53:53,888 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-23 01:53:53,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:53:53,889 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-23 01:53:53,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-11-23 01:53:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-23 01:53:53,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 01:53:53,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:53,892 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:53,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 01:53:54,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:54,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2033909546, now seen corresponding path program 1 times [2021-11-23 01:53:54,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:54,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933307859] [2021-11-23 01:53:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:54,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:54,140 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 01:53:54,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741299056] [2021-11-23 01:53:54,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:54,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:54,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:53:54,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:53:54,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 01:53:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:54,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 01:53:54,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:53:54,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 01:53:54,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 01:53:54,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:53:54,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:53:54,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:54,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933307859] [2021-11-23 01:53:54,602 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 01:53:54,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741299056] [2021-11-23 01:53:54,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741299056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:54,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:54,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:53:54,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066231203] [2021-11-23 01:53:54,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:54,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:53:54,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:54,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:53:54,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:53:54,607 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:53:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:53:56,039 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-23 01:53:56,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:53:56,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-23 01:53:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:53:56,053 INFO L225 Difference]: With dead ends: 201 [2021-11-23 01:53:56,054 INFO L226 Difference]: Without dead ends: 197 [2021-11-23 01:53:56,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:53:56,056 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:53:56,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 01:53:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-23 01:53:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-23 01:53:56,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-23 01:53:56,075 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-23 01:53:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:53:56,077 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-23 01:53:56,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:53:56,078 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-23 01:53:56,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:53:56,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:56,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:56,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 01:53:56,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:56,307 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:56,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:56,308 INFO L85 PathProgramCache]: Analyzing trace with hash 340221349, now seen corresponding path program 1 times [2021-11-23 01:53:56,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:56,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869292847] [2021-11-23 01:53:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:56,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:56,349 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 01:53:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491336296] [2021-11-23 01:53:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:56,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:56,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:53:56,355 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:53:56,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 01:53:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:56,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 01:53:56,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:53:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:53:56,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:53:56,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:56,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869292847] [2021-11-23 01:53:56,764 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 01:53:56,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491336296] [2021-11-23 01:53:56,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491336296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:56,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:56,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:53:56,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812807782] [2021-11-23 01:53:56,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:56,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:53:56,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:56,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:53:56,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:53:56,767 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:53:57,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:53:57,469 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-23 01:53:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:53:57,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 01:53:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:53:57,476 INFO L225 Difference]: With dead ends: 344 [2021-11-23 01:53:57,476 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 01:53:57,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:53:57,478 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 01:53:57,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 175 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 01:53:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 01:53:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-23 01:53:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 01:53:57,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-23 01:53:57,500 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-23 01:53:57,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:53:57,501 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-23 01:53:57,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:53:57,502 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-23 01:53:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 01:53:57,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:53:57,504 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:53:57,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 01:53:57,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:57,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:53:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:53:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -105684312, now seen corresponding path program 1 times [2021-11-23 01:53:57,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:53:57,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011638070] [2021-11-23 01:53:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:57,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:53:57,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 01:53:57,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [901503340] [2021-11-23 01:53:57,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:53:57,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:53:57,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:53:57,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:53:57,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 01:53:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:53:59,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:53:59,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:53:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:53:59,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 01:53:59,557 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:53:59,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011638070] [2021-11-23 01:53:59,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 01:53:59,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901503340] [2021-11-23 01:53:59,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901503340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 01:53:59,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 01:53:59,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 01:53:59,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335678300] [2021-11-23 01:53:59,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 01:53:59,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 01:53:59,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 01:53:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 01:53:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 01:53:59,560 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:54:02,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 01:54:02,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 01:54:02,944 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-23 01:54:02,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 01:54:02,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 01:54:02,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 01:54:02,975 INFO L225 Difference]: With dead ends: 381 [2021-11-23 01:54:02,975 INFO L226 Difference]: Without dead ends: 201 [2021-11-23 01:54:02,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 01:54:02,981 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 01:54:02,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 01:54:02,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-23 01:54:03,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-23 01:54:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 01:54:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-23 01:54:03,015 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-23 01:54:03,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 01:54:03,016 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-23 01:54:03,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 01:54:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-23 01:54:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 01:54:03,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 01:54:03,020 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 01:54:03,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 01:54:03,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 01:54:03,247 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 01:54:03,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:54:03,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1390713772, now seen corresponding path program 1 times [2021-11-23 01:54:03,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 01:54:03,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844649316] [2021-11-23 01:54:03,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:03,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:54:03,267 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 01:54:03,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [989470286] [2021-11-23 01:54:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 01:54:03,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 01:54:03,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 01:54:03,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 01:54:03,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9864ce8-e665-4b0d-b5c2-5c74fa97bf08/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 01:54:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:54:30,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 01:54:30,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:54:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:54:30,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 01:54:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:54:30,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 01:54:30,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844649316] [2021-11-23 01:54:30,618 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 01:54:30,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989470286] [2021-11-23 01:54:30,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989470286] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 01:54:30,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [192785057] [2021-11-23 01:54:30,644 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 01:54:30,645 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 01:54:30,650 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 01:54:30,657 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 01:54:30,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 01:54:30,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 01:54:30,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 01:54:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,864 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 01:54:30,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:30,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-23 01:54:30,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:30,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:30,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:30,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,004 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 01:54:31,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 49 [2021-11-23 01:54:31,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 01:54:31,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-23 01:54:31,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 01:54:31,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-23 01:54:31,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-23 01:54:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 110 treesize of output 115 [2021-11-23 01:54:31,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,890 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 01:54:31,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 138 [2021-11-23 01:54:31,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:31,990 INFO L354 Elim1Store]: treesize reduction 200, result has 11.5 percent of original size [2021-11-23 01:54:31,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 126 treesize of output 132 [2021-11-23 01:54:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,199 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 01:54:32,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-23 01:54:32,243 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 01:54:32,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-23 01:54:32,270 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 01:54:32,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-23 01:54:32,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 01:54:32,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 01:54:32,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-23 01:54:32,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-23 01:54:32,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-23 01:54:32,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 01:54:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:32,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-23 01:54:39,072 WARN L227 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 01:54:39,073 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 01:54:39,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2851 treesize of output 2328 [2021-11-23 01:54:39,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:54:52,078 WARN L227 SmtUtils]: Spent 12.95s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 01:54:52,078 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 01:54:52,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2952 treesize of output 2670 [2021-11-23 01:55:03,904 WARN L227 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 01:55:03,905 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 01:55:03,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2920 treesize of output 2690 [2021-11-23 01:55:04,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:04,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:05,878 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 01:55:05,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25958 treesize of output 25989 [2021-11-23 01:55:06,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:06,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:06,683 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 01:55:06,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 25968 treesize of output 25982 [2021-11-23 01:55:07,433 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:07,625 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 01:55:07,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-23 01:55:07,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:08,057 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:55:08,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-23 01:55:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:08,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:55:08,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-23 01:55:08,259 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:08,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:08,567 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-23 01:55:08,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-23 01:55:08,809 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:08,924 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,014 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,067 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:55:09,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,319 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:55:09,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:55:09,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:09,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:55:09,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 2693 treesize of output 2239 [2021-11-23 01:55:09,499 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,586 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,674 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,847 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:09,935 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,006 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,073 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,256 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,328 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,410 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,476 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,645 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,831 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:10,947 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:11,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:11,113 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:11,181 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 01:55:11,501 INFO L244 Elim1Store]: Index analysis took 209 ms [2021-11-23 01:55:11,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:55:12,864 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:55:12,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 4032 treesize of output 5420 [2021-11-23 01:57:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,364 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 01:57:24,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 42 [2021-11-23 01:57:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:24,972 INFO L354 Elim1Store]: treesize reduction 20, result has 53.5 percent of original size [2021-11-23 01:57:24,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 67 [2021-11-23 01:57:25,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:25,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:25,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:25,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 01:57:25,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 01:57:25,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 45 [2021-11-23 01:57:30,523 WARN L227 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 376 DAG size of output: 376 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:57:41,042 WARN L227 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 369 DAG size of output: 367 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:57:51,504 WARN L227 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 361 DAG size of output: 361 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 01:59:19,616 INFO L190 IndexEqualityManager]: detected not equals via solver