./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/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 ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 --- 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 16:09:55,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:09:55,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:09:55,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:09:55,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:09:55,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:09:55,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:09:55,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:09:55,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:09:55,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:09:55,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:09:55,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:09:55,609 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:09:55,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:09:55,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:09:55,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:09:55,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:09:55,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:09:55,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:09:55,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:09:55,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:09:55,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:09:55,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:09:55,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:09:55,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:09:55,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:09:55,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:09:55,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:09:55,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:09:55,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:09:55,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:09:55,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:09:55,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:09:55,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:09:55,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:09:55,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:09:55,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:09:55,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:09:55,670 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:09:55,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:09:55,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:09:55,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 16:09:55,723 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:09:55,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:09:55,725 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:09:55,725 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:09:55,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:09:55,726 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:09:55,727 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:09:55,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:09:55,727 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:09:55,728 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:09:55,729 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:09:55,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:09:55,730 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:09:55,730 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:09:55,730 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:09:55,731 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:09:55,731 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:09:55,731 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:09:55,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:09:55,732 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:09:55,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:09:55,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:09:55,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:09:55,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:09:55,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:09:55,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:09:55,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:09:55,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:09:55,736 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:09:55,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:09:55,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:09:55,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:09:55,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:09:55,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:09:55,739 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:09:55,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:09:55,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:09:55,755 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:09:55,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:09:55,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:09:55,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:09:55,758 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef232f94cb2adf03185aed5adfaef3f0eb9593ee06bfb5b3fbb6e4bc1dd6d041 [2022-11-23 16:09:56,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:09:56,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:09:56,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:09:56,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:09:56,221 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:09:56,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2022-11-23 16:09:59,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:10:00,213 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:10:00,214 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i [2022-11-23 16:10:00,234 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/data/0f2ed0fbb/5e0c6cadd12043efbfe3c5a1ff7f5674/FLAG1c7417199 [2022-11-23 16:10:00,251 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/data/0f2ed0fbb/5e0c6cadd12043efbfe3c5a1ff7f5674 [2022-11-23 16:10:00,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:10:00,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:10:00,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:10:00,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:10:00,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:10:00,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:00" (1/1) ... [2022-11-23 16:10:00,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7314dc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:00, skipping insertion in model container [2022-11-23 16:10:00,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:10:00" (1/1) ... [2022-11-23 16:10:00,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:10:00,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:10:00,864 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2022-11-23 16:10:01,068 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2022-11-23 16:10:01,070 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2022-11-23 16:10:01,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:10:01,115 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:10:01,181 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[33021,33034] [2022-11-23 16:10:01,238 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44124,44137] [2022-11-23 16:10:01,239 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_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test7-2.i[44245,44258] [2022-11-23 16:10:01,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:10:01,295 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:10:01,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01 WrapperNode [2022-11-23 16:10:01,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:10:01,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:10:01,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:10:01,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:10:01,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,449 INFO L138 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-23 16:10:01,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:10:01,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:10:01,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:10:01,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:10:01,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:10:01,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:10:01,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:10:01,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:10:01,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (1/1) ... [2022-11-23 16:10:01,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:10:01,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:01,638 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:10:01,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:10:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:10:01,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:10:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 16:10:01,698 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 16:10:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:10:01,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 16:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 16:10:01,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 16:10:01,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:10:01,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:10:01,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:10:02,195 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:10:02,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:10:04,124 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:10:04,719 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:10:04,720 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-23 16:10:04,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:04 BoogieIcfgContainer [2022-11-23 16:10:04,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:10:04,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:10:04,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:10:04,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:10:04,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:10:00" (1/3) ... [2022-11-23 16:10:04,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:04, skipping insertion in model container [2022-11-23 16:10:04,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:10:01" (2/3) ... [2022-11-23 16:10:04,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e84579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:04, skipping insertion in model container [2022-11-23 16:10:04,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:04" (3/3) ... [2022-11-23 16:10:04,738 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test7-2.i [2022-11-23 16:10:04,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:10:04,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 16:10:04,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:10:04,831 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;@21205a65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:10:04,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 16:10:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 16:10:04,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:04,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:04,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:04,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:04,854 INFO L85 PathProgramCache]: Analyzing trace with hash -62122227, now seen corresponding path program 1 times [2022-11-23 16:10:04,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:04,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231756594] [2022-11-23 16:10:04,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:04,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:05,131 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 16:10:05,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:05,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231756594] [2022-11-23 16:10:05,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231756594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:05,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:05,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:10:05,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697282065] [2022-11-23 16:10:05,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:05,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 16:10:05,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:05,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 16:10:05,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:10:05,201 INFO L87 Difference]: Start difference. First operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:05,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:05,754 INFO L93 Difference]: Finished difference Result 243 states and 427 transitions. [2022-11-23 16:10:05,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 16:10:05,759 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 16:10:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:05,767 INFO L225 Difference]: With dead ends: 243 [2022-11-23 16:10:05,768 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 16:10:05,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 16:10:05,775 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:05,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 16:10:05,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 16:10:05,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-23 16:10:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:05,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2022-11-23 16:10:05,831 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2022-11-23 16:10:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:05,832 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2022-11-23 16:10:05,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2022-11-23 16:10:05,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 16:10:05,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:05,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:05,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 16:10:05,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:05,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:05,836 INFO L85 PathProgramCache]: Analyzing trace with hash -514891776, now seen corresponding path program 1 times [2022-11-23 16:10:05,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:05,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269115659] [2022-11-23 16:10:05,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:05,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:06,016 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 16:10:06,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:06,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269115659] [2022-11-23 16:10:06,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269115659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:06,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:06,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:10:06,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840772936] [2022-11-23 16:10:06,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:06,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:10:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:06,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:10:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:10:06,021 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:08,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:10:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:09,075 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2022-11-23 16:10:09,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:10:09,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 16:10:09,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:09,081 INFO L225 Difference]: With dead ends: 219 [2022-11-23 16:10:09,082 INFO L226 Difference]: Without dead ends: 165 [2022-11-23 16:10:09,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:10:09,084 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:09,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 281 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-23 16:10:09,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-23 16:10:09,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2022-11-23 16:10:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:09,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2022-11-23 16:10:09,104 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2022-11-23 16:10:09,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:09,105 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2022-11-23 16:10:09,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:09,106 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2022-11-23 16:10:09,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 16:10:09,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:09,108 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:09,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:10:09,108 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:09,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:09,109 INFO L85 PathProgramCache]: Analyzing trace with hash 176334190, now seen corresponding path program 1 times [2022-11-23 16:10:09,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:09,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645976214] [2022-11-23 16:10:09,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:09,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:09,331 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:09,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087780060] [2022-11-23 16:10:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:09,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:09,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:09,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:09,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:10:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:10,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:10:10,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:10,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:10:10,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:10:10,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:10,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645976214] [2022-11-23 16:10:10,438 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:10,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087780060] [2022-11-23 16:10:10,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087780060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:10,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:10,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:10:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245642093] [2022-11-23 16:10:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:10,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:10:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:10:10,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:10:10,442 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:13,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:10:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:13,338 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2022-11-23 16:10:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:10:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-23 16:10:13,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:13,348 INFO L225 Difference]: With dead ends: 265 [2022-11-23 16:10:13,348 INFO L226 Difference]: Without dead ends: 159 [2022-11-23 16:10:13,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:10:13,350 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:13,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 206 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-23 16:10:13,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-23 16:10:13,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2022-11-23 16:10:13,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:13,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2022-11-23 16:10:13,370 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2022-11-23 16:10:13,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:13,370 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2022-11-23 16:10:13,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:10:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2022-11-23 16:10:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 16:10:13,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:13,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:13,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 16:10:13,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-23 16:10:13,583 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:13,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2052583092, now seen corresponding path program 1 times [2022-11-23 16:10:13,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:13,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921997834] [2022-11-23 16:10:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:13,665 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:13,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1364018030] [2022-11-23 16:10:13,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:13,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:13,668 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:13,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:10:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:14,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:10:14,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:14,447 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 16:10:14,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 16:10:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 16:10:14,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:10:14,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:14,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921997834] [2022-11-23 16:10:14,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:14,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364018030] [2022-11-23 16:10:14,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364018030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:14,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:14,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:10:14,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352158463] [2022-11-23 16:10:14,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:14,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:10:14,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:14,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:10:14,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:10:14,495 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:16,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:16,792 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2022-11-23 16:10:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:10:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-23 16:10:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:16,799 INFO L225 Difference]: With dead ends: 201 [2022-11-23 16:10:16,799 INFO L226 Difference]: Without dead ends: 197 [2022-11-23 16:10:16,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:10:16,801 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 47 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:16,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 283 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 16:10:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-23 16:10:16,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2022-11-23 16:10:16,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2022-11-23 16:10:16,819 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2022-11-23 16:10:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:16,821 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2022-11-23 16:10:16,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2022-11-23 16:10:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 16:10:16,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:16,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:16,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:10:17,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:17,034 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:17,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash -788535011, now seen corresponding path program 1 times [2022-11-23 16:10:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:17,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892083794] [2022-11-23 16:10:17,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:17,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:17,139 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:17,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62649873] [2022-11-23 16:10:17,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:17,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:17,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:17,145 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:17,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:10:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:18,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:10:18,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:18,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 16:10:18,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:10:18,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:18,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892083794] [2022-11-23 16:10:18,149 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:18,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62649873] [2022-11-23 16:10:18,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62649873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:18,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:18,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:10:18,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020904933] [2022-11-23 16:10:18,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:18,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:10:18,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:18,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:10:18,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:10:18,153 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:19,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 16:10:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:19,843 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2022-11-23 16:10:19,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:10:19,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-23 16:10:19,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:19,856 INFO L225 Difference]: With dead ends: 344 [2022-11-23 16:10:19,857 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 16:10:19,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:10:19,859 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 229 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:19,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 169 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 16:10:19,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 16:10:19,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2022-11-23 16:10:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 16:10:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2022-11-23 16:10:19,885 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2022-11-23 16:10:19,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:19,885 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2022-11-23 16:10:19,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 16:10:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2022-11-23 16:10:19,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 16:10:19,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:19,889 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:19,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:10:20,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:20,100 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:20,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:20,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1893225867, now seen corresponding path program 1 times [2022-11-23 16:10:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:20,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030321624] [2022-11-23 16:10:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:20,206 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:20,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1270828244] [2022-11-23 16:10:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:20,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:20,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:20,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:10:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:10:47,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:10:47,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:10:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:10:47,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:10:47,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:10:47,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030321624] [2022-11-23 16:10:47,716 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:10:47,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270828244] [2022-11-23 16:10:47,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270828244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:10:47,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:10:47,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:10:47,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618491019] [2022-11-23 16:10:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:10:47,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:10:47,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:10:47,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:10:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:10:47,724 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:10:51,792 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 16:10:51,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:10:51,792 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2022-11-23 16:10:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:10:51,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-11-23 16:10:51,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:10:51,802 INFO L225 Difference]: With dead ends: 381 [2022-11-23 16:10:51,802 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 16:10:51,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:10:51,804 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 16:10:51,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 320 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 16:10:51,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 16:10:51,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-23 16:10:51,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 16:10:51,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2022-11-23 16:10:51,827 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2022-11-23 16:10:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:10:51,827 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2022-11-23 16:10:51,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:10:51,828 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2022-11-23 16:10:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 16:10:51,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:10:51,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 16:10:51,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 16:10:52,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:52,045 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 16:10:52,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:10:52,046 INFO L85 PathProgramCache]: Analyzing trace with hash -533701723, now seen corresponding path program 1 times [2022-11-23 16:10:52,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:10:52,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499296257] [2022-11-23 16:10:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:52,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:10:52,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:10:52,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834733991] [2022-11-23 16:10:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:10:52,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:10:52,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:10:52,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:10:52,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d233e9fb-3695-4c5f-a428-c7ec96d44e9a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 16:12:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:12:02,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 16:12:02,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:12:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 16:12:02,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:12:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 16:12:02,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:12:02,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499296257] [2022-11-23 16:12:02,523 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:12:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834733991] [2022-11-23 16:12:02,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834733991] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:12:02,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1586425342] [2022-11-23 16:12:02,552 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 16:12:02,552 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:12:02,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:12:02,563 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:12:02,564 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:12:02,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:12:02,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 16:12:02,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,777 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 16:12:02,777 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 16:12:02,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,816 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 16:12:02,816 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 16:12:02,836 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 15 treesize of output 1 [2022-11-23 16:12:02,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,914 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:12:02,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-23 16:12:02,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,946 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 16:12:02,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:02,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,013 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:12:03,014 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 16:12:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,041 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 16:12:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,056 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 16:12:03,551 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 16:12:03,588 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 16:12:03,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-23 16:12:03,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-23 16:12:03,890 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 16:12:03,909 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 16:12:03,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:03,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:12:04,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:12:04,169 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 16:12:04,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,260 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 16:12:04,260 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 16:12:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,364 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:12:04,364 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 16:12:04,402 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 16:12:04,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:04,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:12:04,676 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 16:12:04,681 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 16:12:04,687 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 16:12:04,750 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:12:04,751 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 16:12:04,791 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 16:12:04,792 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 16:12:04,829 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:12:04,830 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 16:12:04,875 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 16:12:04,881 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 16:12:04,888 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 16:12:04,966 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 16:12:04,996 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 16:12:05,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:12:05,332 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 46 treesize of output 16 [2022-11-23 16:12:05,352 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 16:12:05,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:05,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:12:07,796 INFO L217 Elim1Store]: Index analysis took 1988 ms [2022-11-23 16:12:12,165 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 16:12:12,166 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 9519771 treesize of output 9519790 [2022-11-23 16:12:13,356 INFO L217 Elim1Store]: Index analysis took 980 ms [2022-11-23 16:12:14,055 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 16:12:14,056 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 9519766 treesize of output 9519770