./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7 --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 a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:05:23,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:05:23,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:05:23,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:05:23,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:05:23,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:05:23,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:05:23,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:05:23,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:05:23,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:05:23,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:05:23,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:05:23,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:05:23,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:05:23,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:05:23,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:05:23,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:05:23,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:05:23,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:05:23,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:05:23,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:05:23,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:05:23,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:05:23,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:05:23,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:05:23,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:05:23,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:05:23,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:05:23,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:05:23,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:05:23,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:05:23,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:05:23,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:05:23,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:05:23,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:05:23,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:05:23,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:05:23,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:05:23,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:05:23,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:05:23,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:05:23,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:05:23,293 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:05:23,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:05:23,294 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:05:23,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:05:23,295 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:05:23,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:05:23,303 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:05:23,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:05:23,304 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:05:23,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:05:23,305 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:05:23,306 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:05:23,306 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:05:23,306 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:05:23,307 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:05:23,307 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:05:23,307 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:05:23,308 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:05:23,308 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:05:23,309 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:05:23,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:05:23,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:05:23,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:05:23,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:05:23,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:05:23,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:05:23,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:05:23,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:05:23,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:05:23,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:05:23,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:05:23,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:05:23,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:05:23,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:05:23,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:05:23,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:05:23,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:05:23,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:05:23,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:05:23,315 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:05:23,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:05:23,315 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 [2021-11-25 18:05:23,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:05:23,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:05:23,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:05:23,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:05:23,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:05:23,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2021-11-25 18:05:23,723 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/data/ad4b1c787/a0bef79bde8b4be8b7a1d63dd3516203/FLAG301740b27 [2021-11-25 18:05:24,419 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:05:24,419 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2021-11-25 18:05:24,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/data/ad4b1c787/a0bef79bde8b4be8b7a1d63dd3516203/FLAG301740b27 [2021-11-25 18:05:24,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/data/ad4b1c787/a0bef79bde8b4be8b7a1d63dd3516203 [2021-11-25 18:05:24,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:05:24,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:05:24,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:05:24,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:05:24,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:05:24,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:05:24" (1/1) ... [2021-11-25 18:05:24,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e5d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:24, skipping insertion in model container [2021-11-25 18:05:24,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:05:24" (1/1) ... [2021-11-25 18:05:24,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:05:24,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:05:25,178 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i[33021,33034] [2021-11-25 18:05:25,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i[44590,44603] [2021-11-25 18:05:25,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:05:25,345 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:05:25,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i[33021,33034] [2021-11-25 18:05:25,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i[44590,44603] [2021-11-25 18:05:25,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:05:25,476 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:05:25,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25 WrapperNode [2021-11-25 18:05:25,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:05:25,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:05:25,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:05:25,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:05:25,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,590 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1026 [2021-11-25 18:05:25,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:05:25,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:05:25,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:05:25,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:05:25,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:05:25,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:05:25,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:05:25,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:05:25,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (1/1) ... [2021-11-25 18:05:25,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:05:25,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:25,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:05:25,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:05:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:05:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:05:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:05:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:05:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:05:25,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:05:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:05:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:05:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:05:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:05:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:05:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:05:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:05:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:05:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:05:25,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:05:26,168 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:05:26,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:05:27,114 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:05:27,540 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:05:27,540 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 18:05:27,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:27 BoogieIcfgContainer [2021-11-25 18:05:27,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:05:27,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:05:27,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:05:27,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:05:27,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:05:24" (1/3) ... [2021-11-25 18:05:27,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c154afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:27, skipping insertion in model container [2021-11-25 18:05:27,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:05:25" (2/3) ... [2021-11-25 18:05:27,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c154afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:05:27, skipping insertion in model container [2021-11-25 18:05:27,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:05:27" (3/3) ... [2021-11-25 18:05:27,554 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-1.i [2021-11-25 18:05:27,560 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:05:27,561 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:05:27,630 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:05:27,646 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 18:05:27,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:05:27,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 18:05:27,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:27,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:27,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:27,683 INFO L85 PathProgramCache]: Analyzing trace with hash -957118725, now seen corresponding path program 1 times [2021-11-25 18:05:27,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:27,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326372696] [2021-11-25 18:05:27,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:27,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:05:27,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:27,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326372696] [2021-11-25 18:05:27,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326372696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:27,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:27,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:05:27,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182560462] [2021-11-25 18:05:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:27,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:05:27,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:27,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:05:27,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:05:27,958 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:28,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:28,720 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-25 18:05:28,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:05:28,730 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 18:05:28,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:28,742 INFO L225 Difference]: With dead ends: 245 [2021-11-25 18:05:28,742 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 18:05:28,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:05:28,750 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:28,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:05:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 18:05:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 18:05:28,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:28,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 18:05:28,802 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 18:05:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:28,803 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 18:05:28,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 18:05:28,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:05:28,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:28,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:28,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:05:28,806 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:28,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1851937168, now seen corresponding path program 1 times [2021-11-25 18:05:28,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:28,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10496832] [2021-11-25 18:05:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:28,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:05:28,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:28,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10496832] [2021-11-25 18:05:28,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10496832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:28,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:28,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:05:28,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152268177] [2021-11-25 18:05:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:28,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:28,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:28,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:28,903 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:30,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:30,092 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 18:05:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:05:30,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 18:05:30,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:30,099 INFO L225 Difference]: With dead ends: 258 [2021-11-25 18:05:30,099 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 18:05:30,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:30,102 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:30,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-25 18:05:30,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 18:05:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 18:05:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 18:05:30,121 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 18:05:30,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:30,122 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 18:05:30,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:30,122 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 18:05:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:05:30,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:30,124 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:30,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:05:30,125 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1227120832, now seen corresponding path program 1 times [2021-11-25 18:05:30,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:30,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060430637] [2021-11-25 18:05:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:30,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:30,310 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:05:30,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243371476] [2021-11-25 18:05:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:30,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:30,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:30,317 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:05:30,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:05:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:31,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:05:31,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:05:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:05:31,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:05:31,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:31,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060430637] [2021-11-25 18:05:31,209 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:05:31,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243371476] [2021-11-25 18:05:31,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243371476] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:31,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:31,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:05:31,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83412858] [2021-11-25 18:05:31,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:31,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:05:31,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:05:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:05:31,212 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:32,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:32,608 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 18:05:32,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:05:32,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 18:05:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:32,616 INFO L225 Difference]: With dead ends: 304 [2021-11-25 18:05:32,616 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 18:05:32,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:05:32,619 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:32,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 18:05:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 18:05:32,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 18:05:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 18:05:32,637 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 18:05:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:32,638 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 18:05:32,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:05:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 18:05:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 18:05:32,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:32,640 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:32,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:05:32,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:32,853 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:32,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash 2111487482, now seen corresponding path program 1 times [2021-11-25 18:05:32,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:32,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68893259] [2021-11-25 18:05:32,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:32,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:32,909 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:05:32,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1941072464] [2021-11-25 18:05:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:32,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:32,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:05:32,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:05:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:33,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:05:33,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:05:33,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:05:33,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:05:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 18:05:33,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:05:33,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:33,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68893259] [2021-11-25 18:05:33,532 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:05:33,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941072464] [2021-11-25 18:05:33,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941072464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:33,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:33,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:05:33,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686162927] [2021-11-25 18:05:33,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:33,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:33,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:33,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:33,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:33,535 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:35,311 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 18:05:35,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:05:35,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 18:05:35,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:35,320 INFO L225 Difference]: With dead ends: 231 [2021-11-25 18:05:35,320 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 18:05:35,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:35,322 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:35,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 18:05:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 18:05:35,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 18:05:35,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:35,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 18:05:35,365 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 18:05:35,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:35,365 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 18:05:35,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 18:05:35,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 18:05:35,383 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:35,383 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:35,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:05:35,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:35,584 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:35,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:35,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1926488172, now seen corresponding path program 1 times [2021-11-25 18:05:35,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:35,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571365258] [2021-11-25 18:05:35,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:35,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:35,657 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:05:35,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1539788148] [2021-11-25 18:05:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:35,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:35,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:35,665 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:05:35,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:05:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:36,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:05:36,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:05:36,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 18:05:36,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:05:36,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:36,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571365258] [2021-11-25 18:05:36,337 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:05:36,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539788148] [2021-11-25 18:05:36,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539788148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:36,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:36,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:05:36,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711002540] [2021-11-25 18:05:36,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:36,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:36,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:36,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:36,341 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:37,111 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 18:05:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:05:37,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 18:05:37,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:37,114 INFO L225 Difference]: With dead ends: 395 [2021-11-25 18:05:37,114 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 18:05:37,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:37,118 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:37,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 18:05:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 18:05:37,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 18:05:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 18:05:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 18:05:37,147 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 18:05:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:37,147 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 18:05:37,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 18:05:37,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 18:05:37,162 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:37,162 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:37,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:05:37,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:37,363 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:37,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash 798103091, now seen corresponding path program 1 times [2021-11-25 18:05:37,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:37,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206989260] [2021-11-25 18:05:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:37,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:37,419 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:05:37,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [252584433] [2021-11-25 18:05:37,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:37,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:37,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:37,421 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:05:37,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:05:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:39,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:05:39,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:05:39,166 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:05:39,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:05:39,166 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:39,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206989260] [2021-11-25 18:05:39,167 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:05:39,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252584433] [2021-11-25 18:05:39,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252584433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:39,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:39,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:05:39,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004073371] [2021-11-25 18:05:39,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:39,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:05:39,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:39,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:05:39,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:05:39,170 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:40,769 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 18:05:40,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:05:40,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 18:05:40,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:40,783 INFO L225 Difference]: With dead ends: 411 [2021-11-25 18:05:40,783 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 18:05:40,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:40,785 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:40,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 18:05:40,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 18:05:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 18:05:40,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 18:05:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 18:05:40,798 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 18:05:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:40,799 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 18:05:40,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:05:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 18:05:40,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 18:05:40,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:40,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:05:40,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:05:41,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 18:05:41,028 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:05:41,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash -320971085, now seen corresponding path program 1 times [2021-11-25 18:05:41,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:41,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143020719] [2021-11-25 18:05:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:41,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:41,114 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:05:41,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1260954696] [2021-11-25 18:05:41,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:41,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:05:41,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:05:41,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:05:41,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a31c3a6d-c14b-4a33-bfa9-0f74fa89d7c2/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:06:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:06:37,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 18:06:37,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:06:37,611 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:06:37,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:06:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 18:06:37,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:06:37,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143020719] [2021-11-25 18:06:37,826 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:06:37,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260954696] [2021-11-25 18:06:37,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260954696] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:06:37,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [673741592] [2021-11-25 18:06:37,846 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 18:06:37,846 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:06:37,851 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:06:37,856 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:06:37,856 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:06:37,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:37,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 18:06:37,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,014 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 18:06:38,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 18:06:38,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:06:38,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:06:38,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 18:06:38,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,120 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:06:38,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:06:38,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:06:38,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-25 18:06:38,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:38,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:38,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 18:06:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 18:06:38,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:06:38,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:06:38,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 18:06:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:06:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:06:38,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:06:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,878 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 18:06:38,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:38,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 18:06:38,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 18:06:38,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:38,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 18:06:39,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:06:39,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:06:39,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 18:06:39,171 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 18:06:39,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 18:06:39,198 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:06:39,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 18:06:39,227 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 18:06:39,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 18:06:39,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:06:39,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 18:06:39,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 18:06:39,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:06:39,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:06:39,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:39,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 18:06:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 18:06:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:39,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 18:06:45,750 WARN L227 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:06:45,750 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:06:45,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 18:06:45,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:54,635 WARN L227 SmtUtils]: Spent 8.77s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:06:54,636 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:06:54,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 18:06:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:06:55,297 INFO L244 Elim1Store]: Index analysis took 417 ms [2021-11-25 18:07:06,748 WARN L227 SmtUtils]: Spent 11.17s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 18:07:06,749 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 18:07:06,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 18:07:07,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:07,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:07,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:07,447 INFO L244 Elim1Store]: Index analysis took 229 ms [2021-11-25 18:07:08,631 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 18:07:08,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 18:07:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:08,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:08,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:08,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:08,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 18:07:09,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:09,659 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 18:07:09,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 18:07:09,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,094 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:07:10,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 18:07:10,165 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:10,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 18:07:10,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,460 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:07:10,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 18:07:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:10,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 18:07:10,620 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:10,654 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:10,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:10,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:11,490 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 18:07:11,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 18:07:11,565 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:11,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:11,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:11,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 18:07:12,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:12,505 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-25 18:07:14,432 INFO L354 Elim1Store]: treesize reduction 15, result has 99.2 percent of original size [2021-11-25 18:07:14,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3149 treesize of output 4526 [2021-11-25 18:07:15,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:15,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:15,210 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-11-25 18:07:15,473 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 18:07:15,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3165 treesize of output 1 [2021-11-25 18:07:15,519 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:15,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:15,825 INFO L244 Elim1Store]: Index analysis took 198 ms [2021-11-25 18:07:18,262 INFO L354 Elim1Store]: treesize reduction 39, result has 97.9 percent of original size [2021-11-25 18:07:18,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4630 [2021-11-25 18:07:20,150 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:20,199 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:20,248 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:20,292 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:20,363 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:23,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:07:23,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3088 treesize of output 2890 [2021-11-25 18:07:23,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,344 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,388 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,437 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,504 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:23,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,620 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:23,710 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-25 18:07:23,803 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:07:23,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3188 treesize of output 2984 [2021-11-25 18:07:23,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:24,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:24,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:24,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:24,111 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:24,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:24,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:24,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:24,201 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 18:07:24,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3072 treesize of output 1 [2021-11-25 18:07:25,678 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:25,720 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:25,762 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:25,808 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:25,892 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:25,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:25,910 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:25,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:25,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 18:07:26,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 18:07:26,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,269 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:26,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 18:07:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,596 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:26,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:26,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:27,090 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 18:07:27,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3128 treesize of output 3414 [2021-11-25 18:07:27,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:27,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:27,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:28,027 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 18:07:28,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 18:07:28,141 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:28,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:28,225 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:28,300 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:28,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:28,574 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 18:07:28,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:07:29,350 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:29,402 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:29,436 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:29,484 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:29,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:29,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 18:07:29,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 18:07:29,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:29,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 18:07:30,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:30,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,387 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-25 18:07:30,403 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:07:30,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3128 treesize of output 2690 [2021-11-25 18:07:30,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:30,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:30,731 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-11-25 18:07:30,751 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:07:30,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3244 treesize of output 2794 [2021-11-25 18:07:30,810 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:30,867 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:30,916 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:31,003 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:07:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:31,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:07:31,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:31,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:31,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:31,272 INFO L244 Elim1Store]: Index analysis took 123 ms [2021-11-25 18:07:31,287 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 18:07:31,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 18:07:33,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:34,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:07:34,157 INFO L244 Elim1Store]: Index analysis took 294 ms [2021-11-25 18:07:39,370 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 18:07:39,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 137218 treesize of output 137340 [2021-11-25 18:16:35,972 WARN L227 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 3651 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)