./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS --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 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 --- 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-8393723 [2022-11-19 07:59:01,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:59:01,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:59:01,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:59:01,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:59:01,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:59:01,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:59:01,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:59:01,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:59:01,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:59:01,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:59:01,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:59:01,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:59:01,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:59:01,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:59:01,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:59:01,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:59:01,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:59:01,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:59:01,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:59:01,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:59:01,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:59:01,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:59:01,343 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:59:01,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:59:01,358 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:59:01,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:59:01,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:59:01,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:59:01,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:59:01,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:59:01,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:59:01,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:59:01,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:59:01,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:59:01,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:59:01,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:59:01,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:59:01,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:59:01,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:59:01,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:59:01,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:59:01,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:59:01,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:59:01,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:59:01,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:59:01,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:59:01,415 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:59:01,415 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:59:01,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:59:01,416 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:59:01,416 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:59:01,417 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:59:01,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:59:01,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:59:01,417 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:59:01,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:59:01,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:59:01,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:59:01,418 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:59:01,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:59:01,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:59:01,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:59:01,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:59:01,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:59:01,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:59:01,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:59:01,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:59:01,422 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:59:01,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:59:01,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:59:01,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:59:01,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:59:01,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:59:01,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:01,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:59:01,423 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:59:01,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:59:01,425 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7770ba1119c1ebb05279b2f71af570d7d6521032dfc344bf6d89fc60d99335e2 [2022-11-19 07:59:01,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:59:01,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:59:01,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:59:01,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:59:01,795 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:59:01,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2022-11-19 07:59:01,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/data/525e73bb7/0f3d461d466149438951ffe5fae91fd8/FLAG5ec0b97b8 [2022-11-19 07:59:02,524 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:59:02,525 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i [2022-11-19 07:59:02,568 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/data/525e73bb7/0f3d461d466149438951ffe5fae91fd8/FLAG5ec0b97b8 [2022-11-19 07:59:02,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/data/525e73bb7/0f3d461d466149438951ffe5fae91fd8 [2022-11-19 07:59:02,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:59:02,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:59:02,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:02,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:59:02,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:59:02,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:02,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20bfddda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:02, skipping insertion in model container [2022-11-19 07:59:02,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:02" (1/1) ... [2022-11-19 07:59:02,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:59:02,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:03,369 WARN L234 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2022-11-19 07:59:03,567 WARN L234 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2022-11-19 07:59:03,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:03,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:03,621 WARN L234 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[33021,33034] [2022-11-19 07:59:03,679 WARN L234 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_5555971d-5f5c-4458-831a-1a05ffca0ac5/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-2.i[49681,49694] [2022-11-19 07:59:03,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:03,725 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:03,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03 WrapperNode [2022-11-19 07:59:03,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:03,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:03,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:03,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:03,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,909 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-19 07:59:03,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:03,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:03,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:03,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:03,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:03,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:04,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:04,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:04,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:04,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:04,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:04,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:04,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:04,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (1/1) ... [2022-11-19 07:59:04,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:04,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:04,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:04,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:59:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:59:04,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:59:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:59:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:59:04,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:59:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:59:04,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:59:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:59:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:59:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:59:04,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:59:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:59:04,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:04,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:04,517 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:04,519 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:06,634 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:59:07,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:59:07,180 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-19 07:59:07,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:07 BoogieIcfgContainer [2022-11-19 07:59:07,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:59:07,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:59:07,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:59:07,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:59:07,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:02" (1/3) ... [2022-11-19 07:59:07,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d36b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:07, skipping insertion in model container [2022-11-19 07:59:07,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:03" (2/3) ... [2022-11-19 07:59:07,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d36b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:07, skipping insertion in model container [2022-11-19 07:59:07,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:07" (3/3) ... [2022-11-19 07:59:07,197 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-2.i [2022-11-19 07:59:07,220 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:59:07,220 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:59:07,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:59:07,310 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;@2f20d825, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:59:07,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:59:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:59:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:59:07,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:07,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:59:07,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-19 07:59:07,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:07,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956624050] [2022-11-19 07:59:07,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:07,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:07,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:07,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956624050] [2022-11-19 07:59:07,489 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:59:07,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367223743] [2022-11-19 07:59:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:07,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:07,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:07,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:59:07,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:59:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:07,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:59:07,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:59:07,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:59:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367223743] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:07,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:07,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:59:07,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228339602] [2022-11-19 07:59:07,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:07,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:59:07,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:07,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:59:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:59:07,932 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:59:08,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:08,779 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-19 07:59:08,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:59:08,785 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 [2022-11-19 07:59:08,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:08,795 INFO L225 Difference]: With dead ends: 329 [2022-11-19 07:59:08,796 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:59:08,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:59:08,803 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:08,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 07:59:08,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:59:08,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 07:59:08,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:59:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 07:59:08,862 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 07:59:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:08,863 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 07:59:08,863 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) [2022-11-19 07:59:08,864 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 07:59:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:59:08,865 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:08,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:08,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:09,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:09,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-19 07:59:09,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:09,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669311620] [2022-11-19 07:59:09,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:09,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:09,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:09,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669311620] [2022-11-19 07:59:09,146 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:59:09,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702714841] [2022-11-19 07:59:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:09,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:09,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:09,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:59:09,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:59:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:09,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:59:09,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:59:09,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:59:09,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702714841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:09,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:09,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:59:09,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093020349] [2022-11-19 07:59:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:09,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:59:09,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:59:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:09,484 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:59:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:10,677 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 07:59:10,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:59:10,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 07:59:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:10,682 INFO L225 Difference]: With dead ends: 342 [2022-11-19 07:59:10,682 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 07:59:10,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:10,684 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:10,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 07:59:10,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 07:59:10,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 07:59:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:59:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 07:59:10,705 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 07:59:10,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:10,706 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 07:59:10,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:59:10,706 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 07:59:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:59:10,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:10,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:10,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:10,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:10,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:10,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:10,915 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-19 07:59:10,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:10,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928924339] [2022-11-19 07:59:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:10,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:11,272 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:59:11,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235912718] [2022-11-19 07:59:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:11,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:11,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:11,274 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:59:11,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:59:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:12,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:59:12,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:59:12,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:59:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:59:12,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:12,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928924339] [2022-11-19 07:59:12,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:59:12,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235912718] [2022-11-19 07:59:12,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235912718] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:59:12,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1433818529] [2022-11-19 07:59:12,924 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 07:59:12,924 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:59:12,928 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:59:12,933 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:59:12,934 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:59:13,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,157 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:59:13,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-19 07:59:13,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,192 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:59:13,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:59:13,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:59:13,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,299 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:59:13,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:59:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:59:13,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:13,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 07:59:13,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:59:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:59:14,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:59:14,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:14,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:14,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:14,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:14,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:59:14,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:14,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:59:14,866 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:59:23,271 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:59:31,806 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:59:31,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1433818529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:31,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:59:31,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 07:59:31,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429865375] [2022-11-19 07:59:31,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:31,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:59:31,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:59:31,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:59:31,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 07:59:31,838 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:59:36,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:59:36,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:36,547 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 07:59:36,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:59:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-19 07:59:36,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:36,549 INFO L225 Difference]: With dead ends: 310 [2022-11-19 07:59:36,549 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 07:59:36,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 07:59:36,551 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 8 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:36,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 405 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 157 Invalid, 0 Unknown, 11 Unchecked, 4.7s Time] [2022-11-19 07:59:36,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 07:59:36,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 07:59:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:59:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 07:59:36,569 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 07:59:36,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:36,570 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 07:59:36,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:59:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 07:59:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:59:36,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:36,573 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:36,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:36,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:36,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:36,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:36,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-19 07:59:36,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:59:36,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72320906] [2022-11-19 07:59:36,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:36,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:59:36,976 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:59:36,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495909466] [2022-11-19 07:59:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:36,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:59:36,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:36,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:59:37,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:59:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:38,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:59:38,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:59:38,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:59:38,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:59:38,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:59:38,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72320906] [2022-11-19 07:59:38,441 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:59:38,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495909466] [2022-11-19 07:59:38,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495909466] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:59:38,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [852122267] [2022-11-19 07:59:38,448 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:59:38,449 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:59:38,451 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:59:38,451 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:59:38,452 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:59:38,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,567 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:59:38,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:59:38,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,580 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 [2022-11-19 07:59:38,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,637 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:59:38,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:59:38,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:59:38,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,703 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:59:38,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:59:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 07:59:38,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:38,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:59:38,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-19 07:59:39,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:59:39,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-19 07:59:39,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:39,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:39,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:59:39,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:59:39,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:39,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:39,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:59:39,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:59:39,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,746 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:59:39,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:59:39,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,843 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:59:39,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:59:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:39,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:40,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:40,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 07:59:40,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 07:59:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 07:59:40,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:59:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:40,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:40,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 07:59:40,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:40,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 07:59:41,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:59:41,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:59:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,122 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:59:41,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:59:41,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:59:41,211 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:59:41,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:59:41,615 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 07:59:41,730 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:59:50,208 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:59:58,204 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:00:08,119 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:00:23,179 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:00:37,253 WARN L233 SmtUtils]: Spent 7.90s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:00:38,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [852122267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:38,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:00:38,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 08:00:38,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316218828] [2022-11-19 08:00:38,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:38,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 08:00:38,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:00:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 08:00:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:00:38,147 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:00:39,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:00:43,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:00:45,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:00:47,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:00:50,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:00:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:51,859 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 08:00:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:00:51,859 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-19 08:00:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:51,860 INFO L225 Difference]: With dead ends: 315 [2022-11-19 08:00:51,860 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 08:00:51,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.4s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 08:00:51,862 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 9 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 272 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:51,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 812 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 3 Unknown, 272 Unchecked, 13.7s Time] [2022-11-19 08:00:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 08:00:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 08:00:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 08:00:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 08:00:51,891 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 08:00:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:51,892 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 08:00:51,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 08:00:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 08:00:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 08:00:51,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:51,895 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:51,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:00:52,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:00:52,118 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:52,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-19 08:00:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:00:52,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338472727] [2022-11-19 08:00:52,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:52,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:00:52,291 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:00:52,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914567992] [2022-11-19 08:00:52,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:52,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:00:52,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:52,296 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:00:52,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5555971d-5f5c-4458-831a-1a05ffca0ac5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 08:00:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:53,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:00:53,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:53,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:00:53,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 08:00:53,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:00:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338472727] [2022-11-19 08:00:53,822 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:00:53,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914567992] [2022-11-19 08:00:53,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914567992] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:00:53,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1002317329] [2022-11-19 08:00:53,826 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 08:00:53,826 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:00:53,827 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:00:53,827 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:00:53,827 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:00:53,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:53,913 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:00:53,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 08:00:53,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:53,928 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 [2022-11-19 08:00:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:53,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:00:53,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,005 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:00:54,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-19 08:00:54,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,053 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:00:54,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 08:00:54,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:00:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:00:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,133 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:00:54,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 08:00:54,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:00:54,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:00:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-19 08:00:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-19 08:00:54,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:00:54,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:00:54,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:00:54,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:00:54,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:00:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,913 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 08:00:54,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 08:00:54,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:54,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,004 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:00:55,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 08:00:55,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-19 08:00:55,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:00:55,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:00:55,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:00:55,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:00:55,330 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:00:55,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 08:00:55,364 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 08:00:55,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 08:00:55,396 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:00:55,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 08:00:55,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:00:55,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:00:55,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:00:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:00:55,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:00:55,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:00:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:00:55,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-19 08:00:55,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:00:55,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:00:57,350 INFO L217 Elim1Store]: Index analysis took 1191 ms [2022-11-19 08:01:02,971 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:01:02,971 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 08:01:02,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-19 08:01:04,652 INFO L217 Elim1Store]: Index analysis took 1421 ms [2022-11-19 08:01:05,564 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 08:01:05,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-19 08:05:08,647 WARN L233 SmtUtils]: Spent 4.05m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:05:08,648 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-19 08:05:08,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-19 08:05:09,505 INFO L217 Elim1Store]: Index analysis took 339 ms [2022-11-19 08:06:39,398 WARN L233 SmtUtils]: Spent 1.50m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:06:39,398 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 08:06:39,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-19 08:06:46,569 INFO L217 Elim1Store]: Index analysis took 5241 ms