./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba --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 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:37:01,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:37:01,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:37:01,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:37:01,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:37:01,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:37:01,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:37:01,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:37:01,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:37:01,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:37:01,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:37:01,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:37:01,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:37:01,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:37:01,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:37:01,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:37:01,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:37:01,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:37:01,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:37:01,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:37:01,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:37:01,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:37:01,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:37:01,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:37:01,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:37:01,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:37:01,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:37:01,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:37:01,299 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:37:01,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:37:01,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:37:01,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:37:01,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:37:01,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:37:01,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:37:01,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:37:01,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:37:01,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:37:01,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:37:01,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:37:01,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:37:01,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:37:01,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:37:01,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:37:01,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:37:01,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:37:01,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:37:01,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:37:01,365 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:37:01,366 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:37:01,366 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:37:01,366 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:37:01,367 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:37:01,368 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:37:01,368 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:37:01,368 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:37:01,368 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:37:01,368 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:37:01,368 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:37:01,369 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:37:01,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:37:01,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:37:01,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:37:01,371 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:37:01,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:37:01,372 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:37:01,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:37:01,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:37:01,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:37:01,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:37:01,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:37:01,373 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:37:01,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:37:01,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:37:01,374 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:37:01,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:37:01,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:37:01,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:37:01,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52fc70d7844651686a4c27e057f507f0498e7d5f7c17f07a035699d1630f6ea2 [2022-11-22 02:37:01,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:37:01,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:37:01,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:37:01,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:37:01,719 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:37:01,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/forester-heap/dll-reverse.i [2022-11-22 02:37:04,715 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:37:04,945 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:37:04,946 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i [2022-11-22 02:37:04,970 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/data/8a3546b50/eaec43b5102c41dd8fda9fedd5d5ca92/FLAG2c48dc575 [2022-11-22 02:37:05,014 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/data/8a3546b50/eaec43b5102c41dd8fda9fedd5d5ca92 [2022-11-22 02:37:05,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:37:05,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:37:05,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:37:05,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:37:05,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:37:05,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40549215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05, skipping insertion in model container [2022-11-22 02:37:05,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:37:05,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:37:05,402 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22309,22322] [2022-11-22 02:37:05,407 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22394,22407] [2022-11-22 02:37:05,412 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22924,22937] [2022-11-22 02:37:05,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:37:05,431 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:37:05,485 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22309,22322] [2022-11-22 02:37:05,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22394,22407] [2022-11-22 02:37:05,496 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/sv-benchmarks/c/forester-heap/dll-reverse.i[22924,22937] [2022-11-22 02:37:05,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:37:05,531 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:37:05,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05 WrapperNode [2022-11-22 02:37:05,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:37:05,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:37:05,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:37:05,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:37:05,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,576 INFO L138 Inliner]: procedures = 119, calls = 41, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 144 [2022-11-22 02:37:05,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:37:05,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:37:05,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:37:05,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:37:05,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,607 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:37:05,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:37:05,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:37:05,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:37:05,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (1/1) ... [2022-11-22 02:37:05,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:37:05,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:05,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:37:05,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:37:05,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:37:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:37:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:37:05,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:37:05,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:37:05,856 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:37:05,858 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:37:06,286 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:37:06,391 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:37:06,392 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 02:37:06,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:37:06 BoogieIcfgContainer [2022-11-22 02:37:06,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:37:06,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:37:06,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:37:06,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:37:06,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:37:05" (1/3) ... [2022-11-22 02:37:06,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406d93aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:37:06, skipping insertion in model container [2022-11-22 02:37:06,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:37:05" (2/3) ... [2022-11-22 02:37:06,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406d93aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:37:06, skipping insertion in model container [2022-11-22 02:37:06,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:37:06" (3/3) ... [2022-11-22 02:37:06,403 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-reverse.i [2022-11-22 02:37:06,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:37:06,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 02:37:06,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:37:06,517 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10cc02ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:37:06,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 02:37:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 24 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:37:06,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:06,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:37:06,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:06,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1014884411, now seen corresponding path program 1 times [2022-11-22 02:37:06,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:06,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376436946] [2022-11-22 02:37:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:06,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:06,823 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:06,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376436946] [2022-11-22 02:37:06,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376436946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:06,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:06,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:37:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609062194] [2022-11-22 02:37:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:06,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:37:06,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:06,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:37:06,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:37:06,885 INFO L87 Difference]: Start difference. First operand has 25 states, 21 states have (on average 1.9047619047619047) internal successors, (40), 24 states have internal predecessors, (40), 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:07,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:07,008 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2022-11-22 02:37:07,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:37:07,011 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 02:37:07,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:07,018 INFO L225 Difference]: With dead ends: 47 [2022-11-22 02:37:07,019 INFO L226 Difference]: Without dead ends: 23 [2022-11-22 02:37:07,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:37:07,025 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:07,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:37:07,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-22 02:37:07,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-22 02:37:07,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 20 states have (on average 1.3) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-22 02:37:07,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 6 [2022-11-22 02:37:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:07,055 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-22 02:37:07,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:07,056 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-22 02:37:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:37:07,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:07,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:07,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:37:07,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1773969138, now seen corresponding path program 1 times [2022-11-22 02:37:07,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:07,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559256272] [2022-11-22 02:37:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:07,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:07,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559256272] [2022-11-22 02:37:07,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559256272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:07,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:07,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:37:07,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506937374] [2022-11-22 02:37:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:07,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:37:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:37:07,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:07,394 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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) [2022-11-22 02:37:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:07,719 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-11-22 02:37:07,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:37:07,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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 [2022-11-22 02:37:07,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:07,720 INFO L225 Difference]: With dead ends: 52 [2022-11-22 02:37:07,720 INFO L226 Difference]: Without dead ends: 33 [2022-11-22 02:37:07,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:37:07,722 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:07,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 55 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:37:07,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-22 02:37:07,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2022-11-22 02:37:07,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.28) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:07,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-11-22 02:37:07,729 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 8 [2022-11-22 02:37:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:07,730 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-11-22 02:37:07,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 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) [2022-11-22 02:37:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-11-22 02:37:07,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:37:07,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:07,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:07,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:37:07,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:07,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:07,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1773970388, now seen corresponding path program 1 times [2022-11-22 02:37:07,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:07,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651586272] [2022-11-22 02:37:07,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:07,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:07,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:07,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:07,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651586272] [2022-11-22 02:37:07,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651586272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:37:07,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:37:07,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:37:07,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991623304] [2022-11-22 02:37:07,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:37:07,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:37:07,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:07,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:37:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:37:07,790 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-11-22 02:37:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:07,884 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-22 02:37:07,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:37:07,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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 [2022-11-22 02:37:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:07,886 INFO L225 Difference]: With dead ends: 47 [2022-11-22 02:37:07,886 INFO L226 Difference]: Without dead ends: 37 [2022-11-22 02:37:07,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:37:07,888 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:07,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 28 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:37:07,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-22 02:37:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-11-22 02:37:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 32 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-11-22 02:37:07,896 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 8 [2022-11-22 02:37:07,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:07,896 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-11-22 02:37:07,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 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) [2022-11-22 02:37:07,897 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-11-22 02:37:07,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 02:37:07,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:07,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:07,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:37:07,898 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:07,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:07,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1654140644, now seen corresponding path program 1 times [2022-11-22 02:37:07,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:07,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908004778] [2022-11-22 02:37:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:07,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:09,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:09,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908004778] [2022-11-22 02:37:09,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908004778] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:37:09,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727658266] [2022-11-22 02:37:09,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:09,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:09,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:09,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:37:09,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:37:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:09,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-22 02:37:09,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:37:09,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:09,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:09,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 02:37:09,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:09,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:09,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:10,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:37:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:10,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 36 [2022-11-22 02:37:10,131 INFO L321 Elim1Store]: treesize reduction 67, result has 20.2 percent of original size [2022-11-22 02:37:10,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 88 [2022-11-22 02:37:10,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 58 treesize of output 50 [2022-11-22 02:37:10,173 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-22 02:37:10,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 02:37:10,303 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:37:10,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 39 [2022-11-22 02:37:10,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 22 treesize of output 16 [2022-11-22 02:37:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:10,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:37:10,562 INFO L321 Elim1Store]: treesize reduction 14, result has 69.6 percent of original size [2022-11-22 02:37:10,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 267 treesize of output 308 [2022-11-22 02:37:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:11,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727658266] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:37:11,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [969250324] [2022-11-22 02:37:11,147 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:37:11,148 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:37:11,154 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:37:11,160 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:37:11,160 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:37:11,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:11,267 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:37:11,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:37:11,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:11,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2022-11-22 02:37:11,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:37:11,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 533 [2022-11-22 02:37:11,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:11,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:11,605 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,012 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-22 02:37:13,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 495 treesize of output 443 [2022-11-22 02:37:13,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,392 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-22 02:37:13,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 381 treesize of output 341 [2022-11-22 02:37:13,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,451 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-22 02:37:13,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-22 02:37:13,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 34 [2022-11-22 02:37:13,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-11-22 02:37:13,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-11-22 02:37:13,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 51 [2022-11-22 02:37:13,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 34 [2022-11-22 02:37:13,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 41 [2022-11-22 02:37:13,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2022-11-22 02:37:13,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-11-22 02:37:13,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 41 [2022-11-22 02:37:13,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2022-11-22 02:37:13,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-11-22 02:37:13,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,748 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 02:37:13,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 137 treesize of output 92 [2022-11-22 02:37:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,783 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:37:13,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 50 [2022-11-22 02:37:13,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 46 [2022-11-22 02:37:13,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:13,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,162 INFO L321 Elim1Store]: treesize reduction 178, result has 31.8 percent of original size [2022-11-22 02:37:14,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 35 case distinctions, treesize of input 445 treesize of output 450 [2022-11-22 02:37:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,359 INFO L321 Elim1Store]: treesize reduction 170, result has 20.9 percent of original size [2022-11-22 02:37:14,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 30 case distinctions, treesize of input 385 treesize of output 389 [2022-11-22 02:37:14,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,432 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-22 02:37:14,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 393 treesize of output 379 [2022-11-22 02:37:14,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:14,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:14,486 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:37:14,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 397 treesize of output 379 [2022-11-22 02:37:15,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:37:15,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:15,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:15,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:15,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:15,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:37:15,198 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:37:15,934 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '439#(and (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~x~0#1.offset|) (= 2 |ULTIMATE.start_main_~t1~0#1|) (= |ULTIMATE.start_main_~x~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~prev~0#1.offset|) (= |ULTIMATE.start_main_~prev~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) 8)) |ULTIMATE.start_main_~t2~0#1|) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~t2~0#1| 1)) (= |ULTIMATE.start_main_~t1~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|) (+ 8 |ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~x~0#1.base| 0)) (not (= |ULTIMATE.start_main_~x~0#1.offset| 0))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:37:15,934 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:37:15,935 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:37:15,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-22 02:37:15,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841997734] [2022-11-22 02:37:15,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:37:15,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:37:15,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:37:15,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-11-22 02:37:15,937 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:18,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:18,248 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-11-22 02:37:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:37:18,251 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-22 02:37:18,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:18,252 INFO L225 Difference]: With dead ends: 68 [2022-11-22 02:37:18,252 INFO L226 Difference]: Without dead ends: 62 [2022-11-22 02:37:18,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-11-22 02:37:18,254 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 48 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:18,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 124 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 3 Unknown, 0 Unchecked, 1.8s Time] [2022-11-22 02:37:18,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-22 02:37:18,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 42. [2022-11-22 02:37:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:18,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-22 02:37:18,265 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 14 [2022-11-22 02:37:18,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:18,266 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-22 02:37:18,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:18,266 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-22 02:37:18,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:37:18,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:18,267 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:18,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:37:18,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:18,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:18,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:18,484 INFO L85 PathProgramCache]: Analyzing trace with hash 186699056, now seen corresponding path program 2 times [2022-11-22 02:37:18,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:18,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026454816] [2022-11-22 02:37:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:18,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:19,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:19,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026454816] [2022-11-22 02:37:19,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026454816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:37:19,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238010726] [2022-11-22 02:37:19,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 02:37:19,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:19,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:19,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:37:19,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:37:20,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 02:37:20,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:37:20,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-22 02:37:20,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:37:20,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:20,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 02:37:20,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:20,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 46 [2022-11-22 02:37:20,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 52 [2022-11-22 02:37:20,804 INFO L321 Elim1Store]: treesize reduction 67, result has 20.2 percent of original size [2022-11-22 02:37:20,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 104 treesize of output 123 [2022-11-22 02:37:20,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,833 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-22 02:37:20,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 97 [2022-11-22 02:37:20,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 115 treesize of output 99 [2022-11-22 02:37:20,858 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-11-22 02:37:20,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-11-22 02:37:20,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-22 02:37:20,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2022-11-22 02:37:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:20,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-22 02:37:21,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 02:37:21,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 02:37:21,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 02:37:21,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2022-11-22 02:37:21,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 26 [2022-11-22 02:37:21,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 20 [2022-11-22 02:37:21,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:21,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:37:21,340 INFO L321 Elim1Store]: treesize reduction 14, result has 74.1 percent of original size [2022-11-22 02:37:21,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 277 treesize of output 321 [2022-11-22 02:37:21,401 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:37:21,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 19 [2022-11-22 02:37:21,568 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-11-22 02:37:21,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 1 [2022-11-22 02:37:21,634 INFO L321 Elim1Store]: treesize reduction 115, result has 38.5 percent of original size [2022-11-22 02:37:21,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 80 [2022-11-22 02:37:21,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4 [2022-11-22 02:37:21,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 10 [2022-11-22 02:37:21,735 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:37:21,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 187 treesize of output 186 [2022-11-22 02:37:21,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4 [2022-11-22 02:37:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:22,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238010726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:37:22,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2083697380] [2022-11-22 02:37:22,414 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:37:22,414 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:37:22,415 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:37:22,415 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:37:22,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:37:22,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,456 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:37:22,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 50 [2022-11-22 02:37:22,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:22,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:22,506 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:37:22,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:37:22,547 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:37:22,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:37:22,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 528 [2022-11-22 02:37:22,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:22,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:22,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:24,223 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-22 02:37:24,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 490 treesize of output 438 [2022-11-22 02:37:24,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,581 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-22 02:37:24,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 385 [2022-11-22 02:37:24,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,718 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-22 02:37:24,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-22 02:37:24,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,755 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-22 02:37:24,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 102 [2022-11-22 02:37:24,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,814 INFO L321 Elim1Store]: treesize reduction 20, result has 56.5 percent of original size [2022-11-22 02:37:24,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 72 [2022-11-22 02:37:24,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 34 [2022-11-22 02:37:24,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 57 [2022-11-22 02:37:24,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,890 INFO L321 Elim1Store]: treesize reduction 67, result has 1.5 percent of original size [2022-11-22 02:37:24,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 122 [2022-11-22 02:37:24,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 97 [2022-11-22 02:37:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 75 [2022-11-22 02:37:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:24,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 55 [2022-11-22 02:37:24,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-11-22 02:37:24,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-11-22 02:37:24,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-11-22 02:37:24,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,009 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-22 02:37:25,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-22 02:37:25,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:25,110 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 02:37:25,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 158 treesize of output 109 [2022-11-22 02:37:25,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:25,157 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 02:37:25,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 46 [2022-11-22 02:37:25,195 INFO L321 Elim1Store]: treesize reduction 37, result has 11.9 percent of original size [2022-11-22 02:37:25,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 65 [2022-11-22 02:37:25,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:25,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2022-11-22 02:37:25,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:37:25,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:37:25,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-22 02:37:25,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-22 02:37:25,345 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:37:26,142 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '709#(and (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~x~0#1.offset|) (= 2 |ULTIMATE.start_main_~t1~0#1|) (= |ULTIMATE.start_main_~x~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= |ULTIMATE.start_main_~head~0#1.offset| |ULTIMATE.start_main_~prev~0#1.offset|) (= |ULTIMATE.start_main_~prev~0#1.base| |ULTIMATE.start_main_~head~0#1.base|) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~x~0#1.base|) |ULTIMATE.start_main_~x~0#1.offset|) 8)) |ULTIMATE.start_main_~t2~0#1|) (= |#NULL.offset| 0) (not (= |ULTIMATE.start_main_~t2~0#1| 1)) (= |ULTIMATE.start_main_~t1~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~x~0#1.base|) (+ 8 |ULTIMATE.start_main_~x~0#1.offset|))) (or (not (= |ULTIMATE.start_main_~x~0#1.base| 0)) (not (= |ULTIMATE.start_main_~x~0#1.offset| 0))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:37:26,142 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:37:26,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:37:26,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-11-22 02:37:26,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822009643] [2022-11-22 02:37:26,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:37:26,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 02:37:26,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:26,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 02:37:26,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2022-11-22 02:37:26,144 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:27,318 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2022-11-22 02:37:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 02:37:27,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 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 15 [2022-11-22 02:37:27,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:27,320 INFO L225 Difference]: With dead ends: 62 [2022-11-22 02:37:27,320 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 02:37:27,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2022-11-22 02:37:27,323 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 46 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:27,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 177 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-22 02:37:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 02:37:27,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 50. [2022-11-22 02:37:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 49 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-22 02:37:27,339 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 15 [2022-11-22 02:37:27,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:27,339 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-22 02:37:27,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 17 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:27,340 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-22 02:37:27,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:37:27,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:27,342 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:27,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 02:37:27,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:27,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:27,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1246752193, now seen corresponding path program 1 times [2022-11-22 02:37:27,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:27,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466319237] [2022-11-22 02:37:27,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:27,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:37:27,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:27,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466319237] [2022-11-22 02:37:27,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466319237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:37:27,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3096829] [2022-11-22 02:37:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:27,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:27,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:27,674 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:37:27,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 02:37:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:27,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-22 02:37:27,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:37:27,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2022-11-22 02:37:27,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2022-11-22 02:37:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:37:27,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:37:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:37:27,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3096829] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:37:27,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1936559674] [2022-11-22 02:37:27,935 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 02:37:27,935 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:37:27,935 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:37:27,935 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:37:27,935 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:37:27,977 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:37:27,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:37:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:27,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:27,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:28,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,028 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 02:37:28,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 50 [2022-11-22 02:37:28,066 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:37:28,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:37:28,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:28,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:28,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,272 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 02:37:28,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 40 [2022-11-22 02:37:28,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 40 [2022-11-22 02:37:28,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,383 INFO L321 Elim1Store]: treesize reduction 95, result has 29.6 percent of original size [2022-11-22 02:37:28,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 74 [2022-11-22 02:37:28,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,415 INFO L321 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2022-11-22 02:37:28,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 44 [2022-11-22 02:37:28,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,455 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-22 02:37:28,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-22 02:37:28,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,504 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-22 02:37:28,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-22 02:37:28,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,571 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:28,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:28,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,717 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-22 02:37:28,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 25 [2022-11-22 02:37:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:28,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,771 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-22 02:37:28,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 33 [2022-11-22 02:37:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 15 [2022-11-22 02:37:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:28,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-11-22 02:37:28,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 02:37:28,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:37:28,968 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:37:29,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '975#(and (= |ULTIMATE.start_main_~x~0#1.offset| 0) (= |ULTIMATE.start_main_~x~0#1.base| 0) (= |ULTIMATE.start_main_~head~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:37:29,051 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:37:29,051 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:37:29,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-11-22 02:37:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751330951] [2022-11-22 02:37:29,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:37:29,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:37:29,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:37:29,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:37:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:37:29,053 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:37:29,413 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-11-22 02:37:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:37:29,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 15 [2022-11-22 02:37:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:37:29,414 INFO L225 Difference]: With dead ends: 50 [2022-11-22 02:37:29,415 INFO L226 Difference]: Without dead ends: 46 [2022-11-22 02:37:29,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:37:29,416 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:37:29,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 25 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:37:29,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-22 02:37:29,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-22 02:37:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 41 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2022-11-22 02:37:29,428 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 15 [2022-11-22 02:37:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:37:29,428 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2022-11-22 02:37:29,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:37:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2022-11-22 02:37:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 02:37:29,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:37:29,429 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:37:29,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 02:37:29,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 02:37:29,637 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:37:29,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:37:29,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1418154908, now seen corresponding path program 3 times [2022-11-22 02:37:29,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:37:29,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730609621] [2022-11-22 02:37:29,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:37:29,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:37:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:37:30,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:30,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:37:30,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730609621] [2022-11-22 02:37:30,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730609621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:37:30,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421458100] [2022-11-22 02:37:30,877 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 02:37:30,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:37:30,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:37:30,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:37:30,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0b99117-9d3f-4bf7-bdb4-b955115c0a70/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:37:31,082 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 02:37:31,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:37:31,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-22 02:37:31,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:37:31,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:31,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-11-22 02:37:31,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-22 02:37:31,370 INFO L321 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2022-11-22 02:37:31,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 658 treesize of output 454 [2022-11-22 02:37:31,423 INFO L321 Elim1Store]: treesize reduction 59, result has 16.9 percent of original size [2022-11-22 02:37:31,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1147 treesize of output 736 [2022-11-22 02:37:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,490 INFO L321 Elim1Store]: treesize reduction 281, result has 1.7 percent of original size [2022-11-22 02:37:31,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 665 treesize of output 627 [2022-11-22 02:37:31,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,548 INFO L321 Elim1Store]: treesize reduction 214, result has 2.3 percent of original size [2022-11-22 02:37:31,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 532 treesize of output 516 [2022-11-22 02:37:31,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2022-11-22 02:37:31,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 47 [2022-11-22 02:37:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:37:31,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2022-11-22 02:37:31,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2022-11-22 02:37:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 47 [2022-11-22 02:37:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 47 [2022-11-22 02:37:31,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2022-11-22 02:37:31,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 51 [2022-11-22 02:37:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 46 [2022-11-22 02:37:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 28 [2022-11-22 02:37:31,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 50 [2022-11-22 02:37:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 22 [2022-11-22 02:37:31,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:31,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2022-11-22 02:37:32,033 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:37:32,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 122 [2022-11-22 02:37:32,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:32,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 63 [2022-11-22 02:37:32,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 53 treesize of output 43 [2022-11-22 02:37:32,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 53 treesize of output 39 [2022-11-22 02:37:32,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-22 02:37:32,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:37:32,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:37:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:37:32,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:37:32,132 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|))) (and (forall ((v_ArrVal_941 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_941) .cse0) .cse1) 0)) (forall ((v_ArrVal_940 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_940) .cse0) .cse1) 0)))) is different from false [2022-11-22 02:37:32,385 INFO L321 Elim1Store]: treesize reduction 14, result has 69.6 percent of original size [2022-11-22 02:37:32,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 319 treesize of output 360 [2022-11-22 02:37:32,708 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse18 (select .cse7 |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse9 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base|))) (let ((.cse0 (= (select .cse9 |c_ULTIMATE.start_main_~x~0#1.offset|) 0)) (.cse16 (= .cse18 0)) (.cse8 (+ |c_ULTIMATE.start_main_~x~0#1.offset| 8))) (and (or (not .cse0) (and (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_930 Int) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse6 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse9 .cse8 v_ArrVal_930) |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) (let ((.cse4 (select (select (store .cse6 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse7 .cse8 v_ArrVal_921) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_920)))) (let ((.cse3 (select (select (store .cse2 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse5 (+ .cse4 8))) (select (let ((.cse1 (store (store .cse2 v_ArrVal_920 v_ArrVal_915) .cse3 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse3) .cse4 0) .cse5 v_ArrVal_903)))) (select (store .cse1 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse1 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store .cse6 v_ArrVal_920 v_ArrVal_938) .cse3 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse3) .cse4 0) .cse5 v_ArrVal_922)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))) 0)) (= v_ArrVal_920 0))) (forall ((v_ArrVal_920 Int)) (or (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse15 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse9 .cse8 v_ArrVal_930) |c_ULTIMATE.start_main_~x~0#1.offset| 0)))) (let ((.cse13 (select (select (store .cse15 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store (store .cse7 .cse8 v_ArrVal_921) |c_ULTIMATE.start_main_~x~0#1.offset| v_ArrVal_920)))) (let ((.cse12 (select (select (store .cse11 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~x~0#1.base|) |c_ULTIMATE.start_main_~x~0#1.offset|)) (.cse14 (+ .cse13 8))) (let ((.cse10 (store (store .cse15 v_ArrVal_920 v_ArrVal_938) .cse12 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse12) .cse13 0) .cse14 v_ArrVal_922)))) (select (select (store .cse10 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store .cse11 v_ArrVal_920 v_ArrVal_915) .cse12 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse12) .cse13 0) .cse14 v_ArrVal_903)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse10 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) 0)) (not (= (select |c_#valid| v_ArrVal_920) 0)) (= v_ArrVal_920 0)))) (not .cse16)) (or (and .cse0 .cse16) (and (forall ((v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int)) (= (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse9 .cse8 v_ArrVal_930)) .cse18 v_ArrVal_929))) (select (select (store .cse17 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse7 .cse8 v_ArrVal_921)) .cse18 v_ArrVal_913) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse17 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)) (forall ((v_ArrVal_941 (Array Int Int)) (v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_930 Int)) (= (select (let ((.cse19 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse7 .cse8 v_ArrVal_921)) .cse18 v_ArrVal_913))) (select (store .cse19 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse19 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~x~0#1.base| (store .cse9 .cse8 v_ArrVal_930)) .cse18 v_ArrVal_929) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0)))))))) is different from false [2022-11-22 02:37:33,455 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base|))) (let ((.cse18 (select .cse8 |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse10 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base|))) (let ((.cse9 (+ |c_ULTIMATE.start_main_~head~0#1.offset| 8)) (.cse0 (= (select .cse10 |c_ULTIMATE.start_main_~head~0#1.offset|) 0)) (.cse1 (= .cse18 0))) (and (or (not .cse0) (not .cse1) (and (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_930 Int) (v_ArrVal_941 (Array Int Int)) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= 0 (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse10 .cse9 v_ArrVal_930) |c_ULTIMATE.start_main_~head~0#1.offset| 0)))) (let ((.cse5 (select (select (store .cse7 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse8 .cse9 v_ArrVal_921) |c_ULTIMATE.start_main_~head~0#1.offset| v_ArrVal_920)))) (let ((.cse4 (select (select (store .cse3 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse6 (+ 8 .cse5))) (select (let ((.cse2 (store (store .cse3 v_ArrVal_920 v_ArrVal_915) .cse4 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse4) .cse5 0) .cse6 v_ArrVal_903)))) (select (store .cse2 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse2 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store .cse7 v_ArrVal_920 v_ArrVal_938) .cse4 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse4) .cse5 0) .cse6 v_ArrVal_922)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))))))) (= v_ArrVal_920 0))) (forall ((v_ArrVal_920 Int)) (or (not (= (select |c_#valid| v_ArrVal_920) 0)) (forall ((v_ArrVal_903 Int) (v_ArrVal_922 Int) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int) (v_ArrVal_933 (Array Int Int)) (v_ArrVal_910 (Array Int Int)) (v_ArrVal_924 (Array Int Int)) (v_ArrVal_915 (Array Int Int)) (v_ArrVal_925 (Array Int Int)) (v_ArrVal_927 (Array Int Int)) (v_ArrVal_938 (Array Int Int)) (v_ArrVal_918 (Array Int Int))) (= (let ((.cse16 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse10 .cse9 v_ArrVal_930) |c_ULTIMATE.start_main_~head~0#1.offset| 0)))) (let ((.cse14 (select (select (store .cse16 v_ArrVal_920 v_ArrVal_924) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store (store .cse8 .cse9 v_ArrVal_921) |c_ULTIMATE.start_main_~head~0#1.offset| v_ArrVal_920)))) (let ((.cse13 (select (select (store .cse12 v_ArrVal_920 v_ArrVal_933) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (.cse15 (+ 8 .cse14))) (let ((.cse11 (store (store .cse16 v_ArrVal_920 v_ArrVal_938) .cse13 (store (store (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_925) v_ArrVal_920 v_ArrVal_910) .cse13) .cse14 0) .cse15 v_ArrVal_922)))) (select (select (store .cse11 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store .cse12 v_ArrVal_920 v_ArrVal_915) .cse13 (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_918) v_ArrVal_920 v_ArrVal_927) .cse13) .cse14 0) .cse15 v_ArrVal_903)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse11 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) 0)) (= v_ArrVal_920 0))))) (or (and (forall ((v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_940 (Array Int Int)) (v_ArrVal_930 Int)) (= (let ((.cse17 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse10 .cse9 v_ArrVal_930)) .cse18 v_ArrVal_929))) (select (select (store .cse17 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_940) (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse8 .cse9 v_ArrVal_921)) .cse18 v_ArrVal_913) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select (select .cse17 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) 0)) (forall ((v_ArrVal_941 (Array Int Int)) (v_ArrVal_913 (Array Int Int)) (v_ArrVal_929 (Array Int Int)) (v_ArrVal_921 Int) (v_ArrVal_930 Int)) (= (select (let ((.cse19 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse8 .cse9 v_ArrVal_921)) .cse18 v_ArrVal_913))) (select (store .cse19 |c_ULTIMATE.start_main_~head~0#1.base| v_ArrVal_941) (select (select .cse19 |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~head~0#1.base| (store .cse10 .cse9 v_ArrVal_930)) .cse18 v_ArrVal_929) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 0))) (and .cse0 .cse1)))))) is different from false [2022-11-22 02:37:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-22 02:37:33,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421458100] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:37:33,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2012177429] [2022-11-22 02:37:33,865 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 02:37:33,865 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:37:33,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:37:33,866 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:37:33,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:37:33,903 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 02:37:33,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-22 02:37:33,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:33,950 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:37:33,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-22 02:37:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-11-22 02:37:33,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:33,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 46 [2022-11-22 02:37:34,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 528 [2022-11-22 02:37:34,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:34,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:34,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:35,571 INFO L321 Elim1Store]: treesize reduction 337, result has 11.1 percent of original size [2022-11-22 02:37:35,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 490 treesize of output 438 [2022-11-22 02:37:35,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,847 INFO L321 Elim1Store]: treesize reduction 302, result has 10.9 percent of original size [2022-11-22 02:37:35,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 421 treesize of output 385 [2022-11-22 02:37:35,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,953 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-22 02:37:35,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 50 [2022-11-22 02:37:35,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:35,986 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-11-22 02:37:35,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 93 [2022-11-22 02:37:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:36,104 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-11-22 02:37:36,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 61 [2022-11-22 02:37:36,928 INFO L321 Elim1Store]: treesize reduction 122, result has 22.8 percent of original size [2022-11-22 02:37:36,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 9490 treesize of output 8547 [2022-11-22 02:37:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,525 INFO L321 Elim1Store]: treesize reduction 420, result has 6.0 percent of original size [2022-11-22 02:37:37,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 4189 treesize of output 4181 [2022-11-22 02:37:37,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,769 INFO L321 Elim1Store]: treesize reduction 38, result has 15.6 percent of original size [2022-11-22 02:37:37,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 435 treesize of output 410 [2022-11-22 02:37:37,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:37,935 INFO L321 Elim1Store]: treesize reduction 42, result has 14.3 percent of original size [2022-11-22 02:37:37,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 288 treesize of output 261 [2022-11-22 02:37:38,285 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:37:38,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 28 [2022-11-22 02:37:38,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 347 [2022-11-22 02:37:38,536 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:37:38,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 02:37:38,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,667 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2022-11-22 02:37:38,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:37:38,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 232 treesize of output 347 [2022-11-22 02:37:38,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 100 [2022-11-22 02:37:38,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:38,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:38,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:39,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:39,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:39,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:39,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 100 [2022-11-22 02:37:39,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:39,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-11-22 02:37:42,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:42,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:42,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:42,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:42,581 INFO L321 Elim1Store]: treesize reduction 636, result has 5.5 percent of original size [2022-11-22 02:37:42,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 1094 treesize of output 1681 [2022-11-22 02:37:43,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,561 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,646 INFO L217 Elim1Store]: Index analysis took 202 ms [2022-11-22 02:37:43,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 1543 [2022-11-22 02:37:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:43,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:43,990 INFO L217 Elim1Store]: Index analysis took 187 ms [2022-11-22 02:37:43,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 344 treesize of output 1807 [2022-11-22 02:37:44,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,176 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:37:44,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:44,240 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 02:37:45,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:45,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:45,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:45,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:45,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:45,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:45,569 INFO L217 Elim1Store]: Index analysis took 199 ms [2022-11-22 02:37:45,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 26 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 30 new quantified variables, introduced 0 case distinctions, treesize of input 4013 treesize of output 96228 [2022-11-22 02:37:49,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:49,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:49,548 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:53,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:37:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:53,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:37:53,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:39:25,285 INFO L217 Elim1Store]: Index analysis took 91518 ms [2022-11-22 02:39:43,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 124 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 128 new quantified variables, introduced 0 case distinctions, treesize of input 134774 treesize of output 15369300