./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a24617e0b83f023304780397185eef703cdbd26842fbad821fea93a0f1f12f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:07:06,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:07:06,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:07:06,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:07:06,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:07:06,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:07:06,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:07:06,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:07:06,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:07:06,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:07:06,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:07:06,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:07:06,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:07:06,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:07:06,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:07:06,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:07:06,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:07:06,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:07:06,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:07:06,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:07:06,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:07:06,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:07:06,236 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:07:06,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:07:06,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:07:06,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:07:06,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:07:06,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:07:06,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:07:06,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:07:06,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:07:06,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:07:06,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:07:06,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:07:06,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:07:06,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:07:06,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:07:06,258 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:07:06,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:07:06,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:07:06,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:07:06,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:07:06,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:07:06,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:07:06,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:07:06,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:07:06,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:07:06,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:07:06,306 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:07:06,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:07:06,307 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:07:06,307 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:07:06,308 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:07:06,309 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:07:06,309 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:07:06,309 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:07:06,309 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:07:06,310 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:07:06,310 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:07:06,310 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:07:06,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:07:06,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:07:06,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:07:06,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:07:06,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:07:06,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:07:06,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:07:06,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:07:06,313 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:07:06,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:07:06,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:07:06,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:07:06,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:07:06,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:07:06,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:06,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:07:06,315 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:07:06,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:07:06,316 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:07:06,316 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:07:06,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:07:06,317 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:07:06,317 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:07:06,317 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_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a24617e0b83f023304780397185eef703cdbd26842fbad821fea93a0f1f12f [2022-11-23 15:07:06,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:07:06,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:07:06,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:07:06,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:07:06,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:07:06,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i [2022-11-23 15:07:09,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:07:09,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:07:09,923 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i [2022-11-23 15:07:09,944 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/data/6d7f52d28/f5ada72023244b1796dfa6b1f9554bde/FLAG4d030ae29 [2022-11-23 15:07:09,962 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/data/6d7f52d28/f5ada72023244b1796dfa6b1f9554bde [2022-11-23 15:07:09,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:07:09,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:07:09,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:09,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:07:09,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:07:09,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:09" (1/1) ... [2022-11-23 15:07:09,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f801d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:09, skipping insertion in model container [2022-11-23 15:07:09,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:09" (1/1) ... [2022-11-23 15:07:09,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:07:10,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:07:10,507 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[33021,33034] [2022-11-23 15:07:10,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44124,44137] [2022-11-23 15:07:10,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44245,44258] [2022-11-23 15:07:10,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:10,691 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:07:10,742 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[33021,33034] [2022-11-23 15:07:10,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44124,44137] [2022-11-23 15:07:10,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test7-2.i[44245,44258] [2022-11-23 15:07:10,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:07:10,892 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:07:10,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10 WrapperNode [2022-11-23 15:07:10,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:07:10,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:10,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:07:10,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:07:10,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:10,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,054 INFO L138 Inliner]: procedures = 176, calls = 328, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-23 15:07:11,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:07:11,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:07:11,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:07:11,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:07:11,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:07:11,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:07:11,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:07:11,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:07:11,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (1/1) ... [2022-11-23 15:07:11,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:07:11,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:11,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:07:11,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:07:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:07:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:07:11,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:07:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:07:11,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:07:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:07:11,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:07:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:07:11,551 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:07:11,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:07:13,179 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:07:13,699 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:07:13,699 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-23 15:07:13,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:13 BoogieIcfgContainer [2022-11-23 15:07:13,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:07:13,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:07:13,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:07:13,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:07:13,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:09" (1/3) ... [2022-11-23 15:07:13,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4439297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:13, skipping insertion in model container [2022-11-23 15:07:13,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:10" (2/3) ... [2022-11-23 15:07:13,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4439297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:13, skipping insertion in model container [2022-11-23 15:07:13,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:13" (3/3) ... [2022-11-23 15:07:13,715 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test7-2.i [2022-11-23 15:07:13,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:07:13,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:07:13,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:07:13,806 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;@17ea2d31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:07:13,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:07:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:13,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:07:13,819 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:13,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:13,820 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:13,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash -62122227, now seen corresponding path program 1 times [2022-11-23 15:07:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:13,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111677949] [2022-11-23 15:07:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:13,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:14,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:14,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111677949] [2022-11-23 15:07:14,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111677949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:14,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:14,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:07:14,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490876629] [2022-11-23 15:07:14,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:14,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:07:14,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:14,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:07:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:07:14,057 INFO L87 Difference]: Start difference. First operand has 122 states, 115 states have (on average 1.808695652173913) internal successors, (208), 117 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:14,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:14,614 INFO L93 Difference]: Finished difference Result 243 states and 427 transitions. [2022-11-23 15:07:14,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:07:14,619 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 15:07:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:14,629 INFO L225 Difference]: With dead ends: 243 [2022-11-23 15:07:14,630 INFO L226 Difference]: Without dead ends: 107 [2022-11-23 15:07:14,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:07:14,644 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:14,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 15:07:14,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-23 15:07:14,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2022-11-23 15:07:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2022-11-23 15:07:14,713 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2022-11-23 15:07:14,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:14,714 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2022-11-23 15:07:14,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:14,715 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2022-11-23 15:07:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:07:14,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:14,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:14,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:07:14,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:14,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:14,718 INFO L85 PathProgramCache]: Analyzing trace with hash -514891776, now seen corresponding path program 1 times [2022-11-23 15:07:14,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:14,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347768204] [2022-11-23 15:07:14,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:14,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:14,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:14,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347768204] [2022-11-23 15:07:14,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347768204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:14,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:14,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:07:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185981049] [2022-11-23 15:07:14,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:14,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:07:14,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:14,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:07:14,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:07:14,936 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:16,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:17,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:17,271 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2022-11-23 15:07:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:07:17,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 15:07:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:17,275 INFO L225 Difference]: With dead ends: 219 [2022-11-23 15:07:17,276 INFO L226 Difference]: Without dead ends: 165 [2022-11-23 15:07:17,276 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:17,277 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:17,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 281 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 15:07:17,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-23 15:07:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2022-11-23 15:07:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2022-11-23 15:07:17,288 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2022-11-23 15:07:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:17,288 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2022-11-23 15:07:17,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2022-11-23 15:07:17,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-23 15:07:17,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:17,290 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:17,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:07:17,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:17,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:17,291 INFO L85 PathProgramCache]: Analyzing trace with hash 176334190, now seen corresponding path program 1 times [2022-11-23 15:07:17,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:17,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555780908] [2022-11-23 15:07:17,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:17,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:17,439 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:07:17,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1791102456] [2022-11-23 15:07:17,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:17,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:17,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:17,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:17,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:07:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:18,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:07:18,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:18,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:07:18,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:18,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555780908] [2022-11-23 15:07:18,424 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:07:18,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791102456] [2022-11-23 15:07:18,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791102456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:18,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:18,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:07:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887544502] [2022-11-23 15:07:18,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:18,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:07:18,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:07:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:18,428 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:20,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:20,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:20,721 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2022-11-23 15:07:20,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:07:20,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-23 15:07:20,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:20,732 INFO L225 Difference]: With dead ends: 265 [2022-11-23 15:07:20,732 INFO L226 Difference]: Without dead ends: 159 [2022-11-23 15:07:20,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:07:20,734 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:20,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 206 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-23 15:07:20,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-23 15:07:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2022-11-23 15:07:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2022-11-23 15:07:20,747 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2022-11-23 15:07:20,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:20,747 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2022-11-23 15:07:20,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:07:20,748 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2022-11-23 15:07:20,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 15:07:20,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:20,749 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:20,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:20,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:20,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:20,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:20,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2052583092, now seen corresponding path program 1 times [2022-11-23 15:07:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:20,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309829889] [2022-11-23 15:07:20,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:20,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:21,027 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:07:21,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991831375] [2022-11-23 15:07:21,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:21,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:21,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:21,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:21,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:07:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:21,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:07:21,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:21,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:07:21,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 15:07:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:07:21,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:07:21,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:21,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309829889] [2022-11-23 15:07:21,633 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:07:21,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991831375] [2022-11-23 15:07:21,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991831375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:21,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:21,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:07:21,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327155204] [2022-11-23 15:07:21,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:21,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:07:21,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:21,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:07:21,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:07:21,636 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:07:23,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:23,603 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2022-11-23 15:07:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:07:23,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-23 15:07:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:23,609 INFO L225 Difference]: With dead ends: 201 [2022-11-23 15:07:23,609 INFO L226 Difference]: Without dead ends: 197 [2022-11-23 15:07:23,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:23,611 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 47 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:23,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 283 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 15:07:23,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-11-23 15:07:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2022-11-23 15:07:23,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2022-11-23 15:07:23,641 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2022-11-23 15:07:23,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:23,642 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2022-11-23 15:07:23,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:07:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2022-11-23 15:07:23,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 15:07:23,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:23,644 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:23,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 15:07:23,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:23,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:23,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash -788535011, now seen corresponding path program 1 times [2022-11-23 15:07:23,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:23,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858127866] [2022-11-23 15:07:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:23,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:23,979 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:07:23,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1509175990] [2022-11-23 15:07:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:23,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:23,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:23,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:24,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:07:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:24,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:07:24,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 15:07:24,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:07:24,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:24,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858127866] [2022-11-23 15:07:24,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:07:24,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509175990] [2022-11-23 15:07:24,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509175990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:24,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:24,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:07:24,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054251295] [2022-11-23 15:07:24,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:24,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:07:24,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:07:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:07:24,687 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:07:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:26,006 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2022-11-23 15:07:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:07:26,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2022-11-23 15:07:26,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:26,015 INFO L225 Difference]: With dead ends: 344 [2022-11-23 15:07:26,015 INFO L226 Difference]: Without dead ends: 206 [2022-11-23 15:07:26,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:26,017 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 229 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:26,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 169 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 15:07:26,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-23 15:07:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2022-11-23 15:07:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:07:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2022-11-23 15:07:26,038 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2022-11-23 15:07:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:26,038 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2022-11-23 15:07:26,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:07:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2022-11-23 15:07:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 15:07:26,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:26,041 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:26,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:26,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:26,250 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:26,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:26,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1893225867, now seen corresponding path program 1 times [2022-11-23 15:07:26,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:26,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520700296] [2022-11-23 15:07:26,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:26,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:26,325 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:07:26,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109747322] [2022-11-23 15:07:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:26,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:26,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:26,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:26,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:07:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:07:49,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 15:07:49,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:07:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:07:49,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:07:49,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:07:49,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520700296] [2022-11-23 15:07:49,866 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:07:49,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109747322] [2022-11-23 15:07:49,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109747322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:07:49,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:07:49,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:07:49,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742782071] [2022-11-23 15:07:49,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:07:49,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:07:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:07:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:07:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:07:49,871 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:07:53,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:07:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:07:53,043 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2022-11-23 15:07:53,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:07:53,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2022-11-23 15:07:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:07:53,052 INFO L225 Difference]: With dead ends: 381 [2022-11-23 15:07:53,052 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 15:07:53,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:07:53,058 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 1 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:07:53,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 320 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-23 15:07:53,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 15:07:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2022-11-23 15:07:53,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:07:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2022-11-23 15:07:53,089 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2022-11-23 15:07:53,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:07:53,089 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2022-11-23 15:07:53,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:07:53,090 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2022-11-23 15:07:53,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 15:07:53,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:07:53,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:07:53,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:07:53,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 15:07:53,315 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:07:53,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:07:53,315 INFO L85 PathProgramCache]: Analyzing trace with hash -533701723, now seen corresponding path program 1 times [2022-11-23 15:07:53,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:07:53,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087706228] [2022-11-23 15:07:53,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:53,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:07:53,407 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 15:07:53,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466491536] [2022-11-23 15:07:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:07:53,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:07:53,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:07:53,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:07:53,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25ccc97e-fa0c-49aa-8d77-f07e747bc72e/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 15:08:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:52,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:08:52,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:08:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:08:52,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:08:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:08:52,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:52,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087706228] [2022-11-23 15:08:52,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 15:08:52,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466491536] [2022-11-23 15:08:52,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466491536] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:08:52,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1747753970] [2022-11-23 15:08:52,891 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2022-11-23 15:08:52,892 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:08:52,895 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:08:52,901 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:08:52,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:08:53,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:08:53,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 15:08:53,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,041 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 15:08:53,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 15:08:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,070 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 15:08:53,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 15:08:53,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 15:08:53,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,183 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:08:53,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-23 15:08:53,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:08:53,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,272 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 15:08:53,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-23 15:08:53,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-23 15:08:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 15:08:53,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:08:53,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 15:08:53,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-23 15:08:53,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:53,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897007 treesize of output 5376300 [2022-11-23 15:08:54,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:08:54,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 15:08:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 15:08:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 15:08:54,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:08:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,347 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 15:08:54,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 15:08:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,431 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 15:08:54,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 15:08:54,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 15:08:54,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:54,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 15:08:54,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:08:54,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-23 15:08:54,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 15:08:54,776 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:08:54,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-23 15:08:54,831 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 15:08:54,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-23 15:08:54,858 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 15:08:54,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-23 15:08:54,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 15:08:54,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 15:08:54,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 15:08:54,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 15:08:54,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 15:08:55,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 15:08:55,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 15:08:55,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 15:08:55,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:08:55,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 15:08:57,432 INFO L217 Elim1Store]: Index analysis took 1714 ms [2022-11-23 15:09:03,664 WARN L233 SmtUtils]: Spent 6.23s 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) [2022-11-23 15:09:03,665 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 15:09:03,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519771 treesize of output 9519790 [2022-11-23 15:09:04,947 INFO L217 Elim1Store]: Index analysis took 1104 ms [2022-11-23 15:09:05,634 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 15:09:05,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519766 treesize of output 9519770