./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/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 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 --- 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 07:50:16,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:50:16,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:50:16,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:50:16,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:50:16,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:50:16,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:50:16,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:50:16,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:50:16,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:50:16,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:50:16,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:50:16,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:50:16,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:50:16,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:50:16,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:50:16,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:50:16,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:50:16,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:50:16,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:50:16,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:50:16,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:50:16,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:50:16,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:50:16,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:50:16,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:50:16,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:50:16,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:50:16,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:50:16,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:50:16,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:50:16,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:50:16,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:50:16,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:50:16,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:50:16,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:50:16,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:50:16,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:50:16,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:50:16,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:50:16,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:50:16,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:50:16,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:50:16,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:50:16,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:50:16,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:50:16,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:50:16,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:50:16,314 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:50:16,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:50:16,315 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:50:16,315 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:50:16,317 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:50:16,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:50:16,317 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:50:16,318 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:50:16,318 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:50:16,318 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:50:16,319 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:50:16,319 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:50:16,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:50:16,320 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:50:16,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:50:16,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:50:16,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:50:16,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:50:16,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:50:16,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:50:16,323 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:50:16,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:50:16,325 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:50:16,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:50:16,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:50:16,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:50:16,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:50:16,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:50:16,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:50:16,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:50:16,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:50:16,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:50:16,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:50:16,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:50:16,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:50:16,330 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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85752dfa9e642a242de1661b045d725551498d8fafaaba42a5d915ccb8e5b948 [2022-11-19 07:50:16,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:50:16,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:50:16,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:50:16,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:50:16,753 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:50:16,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-19 07:50:16,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/data/0a60138c2/595299db5a5f4426a8857acb8d3f3cdd/FLAG1dd5e355d [2022-11-19 07:50:17,527 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:50:17,528 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i [2022-11-19 07:50:17,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/data/0a60138c2/595299db5a5f4426a8857acb8d3f3cdd/FLAG1dd5e355d [2022-11-19 07:50:17,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/data/0a60138c2/595299db5a5f4426a8857acb8d3f3cdd [2022-11-19 07:50:17,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:50:17,742 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:50:17,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:50:17,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:50:17,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:50:17,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:17" (1/1) ... [2022-11-19 07:50:17,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b1af47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:17, skipping insertion in model container [2022-11-19 07:50:17,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:17" (1/1) ... [2022-11-19 07:50:17,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:50:17,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:50:18,340 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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-19 07:50:18,584 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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-19 07:50:18,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:50:18,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:50:18,681 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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[33021,33034] [2022-11-19 07:50:18,763 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_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-3.i[49681,49694] [2022-11-19 07:50:18,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:50:18,827 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:50:18,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18 WrapperNode [2022-11-19 07:50:18,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:50:18,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:50:18,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:50:18,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:50:18,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:18,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,014 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-19 07:50:19,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:50:19,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:50:19,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:50:19,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:50:19,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:50:19,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:50:19,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:50:19,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:50:19,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (1/1) ... [2022-11-19 07:50:19,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:50:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:19,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:50:19,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:50:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:50:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:50:19,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:50:19,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:50:19,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:50:19,280 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:50:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:50:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:50:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:50:19,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:50:19,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:50:19,687 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:50:19,689 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:50:21,986 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:50:22,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:50:22,704 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-19 07:50:22,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:22 BoogieIcfgContainer [2022-11-19 07:50:22,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:50:22,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:50:22,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:50:22,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:50:22,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:17" (1/3) ... [2022-11-19 07:50:22,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30709179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:22, skipping insertion in model container [2022-11-19 07:50:22,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:18" (2/3) ... [2022-11-19 07:50:22,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30709179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:22, skipping insertion in model container [2022-11-19 07:50:22,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:22" (3/3) ... [2022-11-19 07:50:22,718 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-3.i [2022-11-19 07:50:22,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:50:22,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:50:22,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:50:22,814 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;@3840f05c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:50:22,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:50:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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 07:50:22,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:50:22,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:22,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:50:22,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:22,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:22,845 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-19 07:50:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:22,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979611346] [2022-11-19 07:50:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:22,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:23,031 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:23,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979611346] [2022-11-19 07:50:23,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:50:23,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942466739] [2022-11-19 07:50:23,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:23,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:23,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:23,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:23,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:50:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:23,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:50:23,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:23,405 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 07:50:23,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:50:23,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942466739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:23,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:23,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:50:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188353279] [2022-11-19 07:50:23,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:23,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:50:23,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:50:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:50:23,464 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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 07:50:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:24,915 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-19 07:50:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:50:24,923 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 07:50:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:24,934 INFO L225 Difference]: With dead ends: 353 [2022-11-19 07:50:24,935 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:50:24,939 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 07:50:24,942 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:24,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 07:50:24,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:50:25,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 07:50:25,006 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 07:50:25,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 07:50:25,010 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 07:50:25,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:25,011 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 07:50:25,012 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 07:50:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 07:50:25,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:50:25,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:25,015 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 07:50:25,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:50:25,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:25,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:25,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-19 07:50:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:25,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395174302] [2022-11-19 07:50:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:25,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:25,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:25,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395174302] [2022-11-19 07:50:25,303 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:50:25,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590805071] [2022-11-19 07:50:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:25,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:25,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:25,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:25,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:50:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:25,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:50:25,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:25,709 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 07:50:25,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:50:25,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590805071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:25,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:50:25,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:50:25,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380058662] [2022-11-19 07:50:25,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:25,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:50:25,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:50:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:50:25,714 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 07:50:28,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:28,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:28,793 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 07:50:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:50:28,803 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 07:50:28,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:28,806 INFO L225 Difference]: With dead ends: 342 [2022-11-19 07:50:28,806 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 07:50:28,807 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 07:50:28,808 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:28,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:50:28,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 07:50:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 07:50:28,832 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 07:50:28,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 07:50:28,835 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 07:50:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:28,835 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 07:50:28,835 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 07:50:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 07:50:28,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:50:28,841 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:28,841 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 07:50:28,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:50:29,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-19 07:50:29,055 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:29,056 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-19 07:50:29,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:29,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524849710] [2022-11-19 07:50:29,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:29,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:29,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:50:29,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1894598201] [2022-11-19 07:50:29,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:29,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:29,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:29,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:29,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:50:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:31,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:50:31,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:31,157 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 07:50:31,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:50:31,284 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 07:50:31,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:31,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524849710] [2022-11-19 07:50:31,285 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:50:31,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894598201] [2022-11-19 07:50:31,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894598201] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:50:31,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1252995534] [2022-11-19 07:50:31,313 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 07:50:31,314 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:50:31,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:50:31,326 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:50:31,326 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,511 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:50:31,513 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 07:50:31,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,532 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 07:50:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,642 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 07:50:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:50:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,684 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:50:31,685 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 07:50:31,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,764 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:50:31,766 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 07:50:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,801 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 07:50:31,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:31,817 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 07:50:32,410 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 07:50:32,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,480 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 07:50:32,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:32,559 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 07:50:32,619 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 07:50:33,112 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 07:50:33,134 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 07:50:33,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,214 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 07:50:33,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:33,275 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 07:50:33,325 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:50:41,422 WARN L233 SmtUtils]: Spent 6.14s 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 07:50:49,329 WARN L233 SmtUtils]: Spent 5.76s 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 07:50:49,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1252995534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:50:49,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:50:49,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 07:50:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001655878] [2022-11-19 07:50:49,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:50:49,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:50:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:50:49,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:50:49,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:50:49,341 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 07:50:50,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:55,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:50:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:50:55,915 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 07:50:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:50:55,916 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 07:50:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:50:55,917 INFO L225 Difference]: With dead ends: 310 [2022-11-19 07:50:55,917 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 07:50:55,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:50:55,920 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 7 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:50:55,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 586 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 81 Unchecked, 6.5s Time] [2022-11-19 07:50:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 07:50:55,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 07:50:55,942 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 07:50:55,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 07:50:55,944 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 07:50:55,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:50:55,944 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 07:50:55,944 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 07:50:55,945 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 07:50:55,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:50:55,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:50:55,947 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 07:50:55,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:50:56,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:56,168 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:50:56,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:50:56,169 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-19 07:50:56,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:50:56,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581317974] [2022-11-19 07:50:56,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:56,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:50:56,365 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:50:56,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454153947] [2022-11-19 07:50:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:50:56,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:50:56,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:50:56,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:50:56,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:50:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:50:57,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:50:57,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:50:57,887 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 07:50:57,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:50:58,083 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 07:50:58,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:50:58,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581317974] [2022-11-19 07:50:58,083 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:50:58,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454153947] [2022-11-19 07:50:58,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454153947] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:50:58,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256767821] [2022-11-19 07:50:58,102 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:50:58,102 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:50:58,109 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:50:58,109 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:50:58,110 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:50:58,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,275 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:50:58,275 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 07:50:58,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,293 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 07:50:58,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,371 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:50:58,372 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 07:50:58,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,401 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 07:50:58,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,465 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:50:58,465 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 07:50:58,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:50:58,503 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 07:50:58,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:58,533 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 07:50:58,957 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 07:50:58,981 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 07:50:59,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,050 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 07:50:59,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,109 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 07:50:59,177 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 07:50:59,195 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 07:50:59,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,276 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 07:50:59,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,348 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 07:50:59,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,456 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 07:50:59,499 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 07:50:59,535 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 07:50:59,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,645 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:50:59,645 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 07:50:59,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:50:59,771 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:50:59,771 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 07:51:00,534 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 07:51:00,561 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 07:51:00,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,626 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 07:51:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,685 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 07:51:00,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,821 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 9897003 treesize of output 5376293 [2022-11-19 07:51:00,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:00,883 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 9897003 treesize of output 5376293 [2022-11-19 07:51:00,926 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 07:51:00,942 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 07:51:01,003 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 07:51:01,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,052 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 07:51:01,103 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 07:51:01,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,207 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:51:01,208 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 07:51:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:51:01,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 07:51:01,710 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 07:51:01,845 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:51:10,638 WARN L233 SmtUtils]: Spent 5.50s 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 07:51:18,424 WARN L233 SmtUtils]: Spent 5.65s 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 07:51:32,607 WARN L233 SmtUtils]: Spent 10.02s 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 07:51:46,674 WARN L233 SmtUtils]: Spent 7.89s 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 07:51:59,644 WARN L233 SmtUtils]: Spent 6.74s 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 07:52:00,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [256767821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:00,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:52:00,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 07:52:00,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566096396] [2022-11-19 07:52:00,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:00,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:52:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:00,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:52:00,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:52:00,728 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 07:52:06,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:52:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:07,319 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 07:52:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:52:07,319 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 07:52:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:07,321 INFO L225 Difference]: With dead ends: 315 [2022-11-19 07:52:07,321 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:52:07,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 58.9s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:52:07,323 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 8 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 193 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:07,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 616 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 193 Unchecked, 6.5s Time] [2022-11-19 07:52:07,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:52:07,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 07:52:07,368 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 07:52:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 07:52:07,370 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 07:52:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:07,371 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 07:52:07,371 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 07:52:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 07:52:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:52:07,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:07,374 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 07:52:07,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:52:07,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:52:07,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:07,588 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-19 07:52:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:07,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573992285] [2022-11-19 07:52:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:07,798 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:52:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576752385] [2022-11-19 07:52:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:07,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:52:07,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:52:07,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:52:07,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99af08a6-8673-427d-bfb6-4ae2c0fdc38a/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:52:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:09,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:52:09,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:52:09,338 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 07:52:09,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:52:09,529 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 07:52:09,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:09,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573992285] [2022-11-19 07:52:09,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:52:09,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576752385] [2022-11-19 07:52:09,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576752385] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:52:09,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149206226] [2022-11-19 07:52:09,538 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:52:09,538 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:52:09,539 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:52:09,539 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:52:09,540 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:52:09,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,642 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:52:09,643 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 07:52:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,657 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 07:52:09,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,685 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 07:52:09,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,741 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:52:09,742 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 07:52:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,805 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:52:09,806 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 07:52:09,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:52:09,822 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 07:52:09,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:09,844 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 07:52:10,233 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 07:52:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,302 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 07:52:10,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,358 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 07:52:10,399 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 07:52:10,437 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 07:52:10,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,520 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 07:52:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,587 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 07:52:10,623 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 07:52:10,690 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 07:52:10,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,782 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:52:10,783 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 07:52:10,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,891 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:52:10,892 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 07:52:10,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:10,972 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 07:52:11,025 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 07:52:11,235 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 07:52:11,242 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 07:52:11,250 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 07:52:11,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:52:11,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 07:52:11,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:52:11,335 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 07:52:11,343 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 07:52:11,351 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 07:52:11,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,461 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 07:52:11,501 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 07:52:11,527 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 07:52:11,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:52:11,777 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 07:52:11,805 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 07:52:11,829 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 07:52:15,965 INFO L217 Elim1Store]: Index analysis took 3202 ms [2022-11-19 07:52:32,450 WARN L233 SmtUtils]: Spent 16.48s 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 07:52:32,451 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 07:52:32,452 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 07:52:35,781 INFO L217 Elim1Store]: Index analysis took 2996 ms [2022-11-19 07:52:37,065 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 07:52:37,066 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 07:56:26,764 WARN L233 SmtUtils]: Spent 3.82m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:56:26,765 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-19 07:56:26,765 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 7904 treesize of output 5832 [2022-11-19 07:56:27,807 INFO L217 Elim1Store]: Index analysis took 510 ms [2022-11-19 07:58:38,919 WARN L233 SmtUtils]: Spent 2.19m 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 07:58:38,920 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:58:38,920 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 7135 treesize of output 5975 [2022-11-19 07:58:46,870 INFO L217 Elim1Store]: Index analysis took 5420 ms