./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:51:35,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:51:35,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:51:35,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:51:35,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:51:35,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:51:35,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:51:35,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:51:35,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:51:35,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:51:35,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:51:35,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:51:35,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:51:35,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:51:35,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:51:35,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:51:35,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:51:35,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:51:35,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:51:35,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:51:35,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:51:35,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:51:35,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:51:35,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:51:35,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:51:35,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:51:35,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:51:35,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:51:35,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:51:35,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:51:35,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:51:35,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:51:35,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:51:35,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:51:35,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:51:35,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:51:35,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:51:35,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:51:35,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:51:35,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:51:35,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:51:35,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:51:35,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:51:35,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:51:35,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:51:35,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:51:35,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:51:35,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:51:35,934 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:51:35,935 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:51:35,935 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:51:35,935 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:51:35,936 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:51:35,936 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:51:35,937 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:51:35,937 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:51:35,937 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:51:35,937 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:51:35,938 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:51:35,938 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:51:35,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:51:35,939 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:51:35,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:51:35,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:51:35,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:51:35,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:51:35,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:51:35,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:51:35,941 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:51:35,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:51:35,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:51:35,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:51:35,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:51:35,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:51:35,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:35,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:51:35,943 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:51:35,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:51:35,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:51:35,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:51:35,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:51:35,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:51:35,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:51:35,946 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fe25077175322d8d5e3cefee67a534dcd61077607911040f354db1679589b09 [2022-11-23 15:51:36,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:51:36,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:51:36,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:51:36,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:51:36,285 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:51:36,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-11-23 15:51:39,221 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:51:39,625 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:51:39,625 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i [2022-11-23 15:51:39,642 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/data/dae9e9714/4ef44c3b5456449ca6a7801d6b7ef93f/FLAG38ee3d4c3 [2022-11-23 15:51:39,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/data/dae9e9714/4ef44c3b5456449ca6a7801d6b7ef93f [2022-11-23 15:51:39,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:51:39,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:51:39,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:39,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:51:39,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:51:39,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:39" (1/1) ... [2022-11-23 15:51:39,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20eed175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:39, skipping insertion in model container [2022-11-23 15:51:39,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:39" (1/1) ... [2022-11-23 15:51:39,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:51:39,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:51:40,273 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-11-23 15:51:40,444 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-11-23 15:51:40,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:40,470 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:51:40,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[33021,33034] [2022-11-23 15:51:40,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-2.i[49681,49694] [2022-11-23 15:51:40,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:40,641 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:51:40,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40 WrapperNode [2022-11-23 15:51:40,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:40,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:40,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:51:40,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:51:40,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,795 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-23 15:51:40,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:40,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:51:40,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:51:40,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:51:40,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,903 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:51:40,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:51:40,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:51:40,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:51:40,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (1/1) ... [2022-11-23 15:51:40,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:40,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:40,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:51:40,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:51:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:51:41,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 15:51:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 15:51:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:51:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:51:41,015 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:51:41,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 15:51:41,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:51:41,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:51:41,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:51:41,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:51:41,384 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:51:41,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:51:43,540 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:51:44,143 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:51:44,144 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-23 15:51:44,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:44 BoogieIcfgContainer [2022-11-23 15:51:44,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:51:44,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:51:44,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:51:44,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:51:44,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:51:39" (1/3) ... [2022-11-23 15:51:44,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceb188d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:44, skipping insertion in model container [2022-11-23 15:51:44,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:40" (2/3) ... [2022-11-23 15:51:44,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ceb188d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:44, skipping insertion in model container [2022-11-23 15:51:44,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:44" (3/3) ... [2022-11-23 15:51:44,156 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-2.i [2022-11-23 15:51:44,175 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:51:44,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:51:44,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:51:44,232 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f2d3095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:51:44,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:51:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:51:44,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:51:44,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:44,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:51:44,245 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:51:44,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:44,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-23 15:51:44,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:44,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408507301] [2022-11-23 15:51:44,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:44,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:44,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:44,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408507301] [2022-11-23 15:51:44,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:51:44,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187423994] [2022-11-23 15:51:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:44,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:44,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:44,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:51:44,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:51:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:44,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 15:51:44,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:51:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:51:44,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:51:44,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187423994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:51:44,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:51:44,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:51:44,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381185732] [2022-11-23 15:51:44,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:51:44,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:51:44,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:51:44,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:51:44,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:51:44,773 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:51:45,648 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-23 15:51:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:51:45,653 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 15:51:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:51:45,661 INFO L225 Difference]: With dead ends: 329 [2022-11-23 15:51:45,662 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 15:51:45,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:51:45,669 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:51:45,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 15:51:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 15:51:45,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 15:51:45,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:51:45,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 15:51:45,746 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 15:51:45,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:51:45,747 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 15:51:45,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 15:51:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:51:45,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:45,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:51:45,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:51:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:45,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:51:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:45,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-23 15:51:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:45,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851628899] [2022-11-23 15:51:45,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:45,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:46,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:46,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851628899] [2022-11-23 15:51:46,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 15:51:46,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741008324] [2022-11-23 15:51:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:46,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:46,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:51:46,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:51:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:46,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:51:46,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:51:46,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:51:46,397 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:51:46,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741008324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:51:46,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:51:46,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:51:46,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131115181] [2022-11-23 15:51:46,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:51:46,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:51:46,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:51:46,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:51:46,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:51:46,400 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:51:47,529 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 15:51:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:51:47,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-23 15:51:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:51:47,534 INFO L225 Difference]: With dead ends: 342 [2022-11-23 15:51:47,535 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 15:51:47,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:51:47,536 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:51:47,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 15:51:47,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 15:51:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 15:51:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:51:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 15:51:47,553 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 15:51:47,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:51:47,554 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 15:51:47,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:51:47,554 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 15:51:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 15:51:47,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:47,556 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:51:47,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:51:47,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:47,763 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:51:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:47,763 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-23 15:51:47,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:47,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309074502] [2022-11-23 15:51:47,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:47,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:48,018 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:51:48,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1678114153] [2022-11-23 15:51:48,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:48,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:51:48,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:48,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:51:48,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:51:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:51:49,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:51:49,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:51:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:51:49,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:51:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:51:49,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:51:49,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309074502] [2022-11-23 15:51:49,628 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:51:49,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678114153] [2022-11-23 15:51:49,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678114153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:51:49,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1229624256] [2022-11-23 15:51:49,657 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 15:51:49,658 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:51:49,662 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:51:49,668 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:51:49,669 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:51:49,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:49,857 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:51:49,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 15:51:49,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:49,894 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:51:49,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:51:49,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:49,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:51:49,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:49,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:49,997 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:51:49,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 15:51:50,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 15:51:50,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:51:50,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 15:51:50,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:51:50,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:51:50,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:50,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:51:50,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:51:50,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:51:51,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:51:51,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:51:51,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:51:51,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:51:51,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:51:51,334 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:51:59,727 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:08,113 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:08,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1229624256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:52:08,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:52:08,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 15:52:08,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768046064] [2022-11-23 15:52:08,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:52:08,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:52:08,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:52:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:52:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 15:52:08,122 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:13,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:15,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:17,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:52:20,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:52:21,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:52:21,613 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-23 15:52:21,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:52:21,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-23 15:52:21,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:52:21,615 INFO L225 Difference]: With dead ends: 313 [2022-11-23 15:52:21,615 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 15:52:21,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 15:52:21,617 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:52:21,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 402 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 181 Invalid, 4 Unknown, 0 Unchecked, 10.6s Time] [2022-11-23 15:52:21,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 15:52:21,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-23 15:52:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:52:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 15:52:21,653 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 15:52:21,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:52:21,654 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 15:52:21,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:52:21,655 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 15:52:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 15:52:21,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:52:21,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:52:21,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:52:21,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:21,858 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:52:21,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:52:21,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-23 15:52:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:52:21,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357030421] [2022-11-23 15:52:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:52:22,059 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:52:22,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1717036274] [2022-11-23 15:52:22,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:52:22,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:52:22,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:52:22,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:52:22,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:52:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:52:23,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:52:23,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:52:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:52:23,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:52:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:52:23,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:52:23,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357030421] [2022-11-23 15:52:23,429 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:52:23,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717036274] [2022-11-23 15:52:23,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717036274] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:52:23,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [614436707] [2022-11-23 15:52:23,434 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 15:52:23,435 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:52:23,435 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:52:23,435 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:52:23,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:52:23,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,600 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:52:23,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:52:23,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:52:23,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,676 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:52:23,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 15:52:23,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:52:23,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,742 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:52:23,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 15:52:23,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:52:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:23,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:52:23,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-23 15:52:24,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:52:24,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-23 15:52:24,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:52:24,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:52:24,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:52:24,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:52:24,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:24,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:24,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:52:24,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:52:24,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,688 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:52:24,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:52:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,782 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:52:24,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 15:52:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:24,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:25,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:52:25,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:52:25,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:52:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:52:25,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:52:25,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:25,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:52:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:25,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:52:26,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:52:26,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:52:26,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,138 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:52:26,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:52:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:52:26,234 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:52:26,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 15:52:26,653 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 15:52:26,762 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:52:34,881 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:42,602 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:52:53,434 WARN L233 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:53:07,210 WARN L233 SmtUtils]: Spent 7.62s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:53:19,607 WARN L233 SmtUtils]: Spent 6.22s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:53:20,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [614436707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:53:20,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:53:20,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 15:53:20,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700733413] [2022-11-23 15:53:20,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:53:20,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:53:20,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:53:20,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:53:20,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-23 15:53:20,353 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:53:26,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:28,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:30,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:32,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:34,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:36,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:38,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:40,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:42,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:47,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 15:53:48,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:53:48,285 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 15:53:48,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 15:53:48,286 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-23 15:53:48,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:53:48,287 INFO L225 Difference]: With dead ends: 315 [2022-11-23 15:53:48,287 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 15:53:48,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 56.7s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-11-23 15:53:48,289 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 17 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 9 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-23 15:53:48,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 402 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 24.8s Time] [2022-11-23 15:53:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 15:53:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 15:53:48,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 15:53:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 15:53:48,316 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 15:53:48,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:53:48,316 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 15:53:48,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:53:48,317 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 15:53:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 15:53:48,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:53:48,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:53:48,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:53:48,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:53:48,527 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:53:48,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:53:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-23 15:53:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:53:48,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385595878] [2022-11-23 15:53:48,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:48,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:53:48,689 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:53:48,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756400072] [2022-11-23 15:53:48,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:53:48,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:53:48,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:53:48,691 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:53:48,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac40864-bd5b-4b82-96ce-93f5386f827f/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:53:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:53:50,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 15:53:50,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:53:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:53:50,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:53:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:53:50,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:53:50,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385595878] [2022-11-23 15:53:50,246 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:53:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756400072] [2022-11-23 15:53:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756400072] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:53:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1411990658] [2022-11-23 15:53:50,249 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 15:53:50,250 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:53:50,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:53:50,250 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:53:50,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:53:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,325 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:53:50,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:53:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 15:53:50,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 15:53:50,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,373 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:53:50,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-23 15:53:50,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,417 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 15:53:50,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 15:53:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:53:50,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:53:50,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,501 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:53:50,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 15:53:50,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:53:50,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:53:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-23 15:53:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:50,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-23 15:53:51,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:53:51,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:53:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:53:51,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:53:51,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:53:51,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,299 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:53:51,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:53:51,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,392 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:53:51,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 15:53:51,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-23 15:53:51,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:53:51,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:53:51,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:53:51,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:53:51,754 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:53:51,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-23 15:53:51,784 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 15:53:51,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-23 15:53:51,820 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:53:51,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-23 15:53:51,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:53:51,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 15:53:51,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 15:53:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:51,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 15:53:51,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 15:53:52,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 15:53:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:53:52,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-23 15:53:52,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 15:53:52,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 15:53:53,792 INFO L217 Elim1Store]: Index analysis took 1263 ms [2022-11-23 15:54:03,746 WARN L233 SmtUtils]: Spent 9.95s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:54:03,747 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 15:54:03,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-23 15:54:04,984 INFO L217 Elim1Store]: Index analysis took 1063 ms [2022-11-23 15:54:06,184 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 15:54:06,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-23 15:57:56,909 WARN L233 SmtUtils]: Spent 3.84m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:57:56,910 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-23 15:57:56,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-23 15:57:57,356 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-23 15:59:55,162 WARN L233 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:59:55,163 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 15:59:55,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-23 16:00:03,783 INFO L217 Elim1Store]: Index analysis took 7431 ms