./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --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 7c6261a52ba91bad3864c182e4633afd262bc5fe07cf18f92cb66db83623b9ae --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:16,994 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:17,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:17,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:17,072 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:17,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:17,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:17,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:17,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:17,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:17,103 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:17,104 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:17,104 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:17,105 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:17,105 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:17,106 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:17,106 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:17,107 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:17,107 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:17,108 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:17,108 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:17,109 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:17,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:17,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:17,111 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:17,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:17,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:17,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:17,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:17,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:17,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:17,114 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:17,115 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:17,115 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:17,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:17,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:17,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:17,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:17,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:17,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:17,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:17,119 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:17,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:17,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:17,120 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:17,120 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:17,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:17,121 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c6261a52ba91bad3864c182e4633afd262bc5fe07cf18f92cb66db83623b9ae [2023-11-23 20:33:17,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:17,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:17,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:17,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:17,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:17,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c [2023-11-23 20:33:20,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:20,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:20,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c [2023-11-23 20:33:20,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/data/bce5c1372/c482e0e09cbc47359693572d13ce9481/FLAGa49d84daf [2023-11-23 20:33:20,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/data/bce5c1372/c482e0e09cbc47359693572d13ce9481 [2023-11-23 20:33:20,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:20,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:20,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:20,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:20,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:20,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:20" (1/1) ... [2023-11-23 20:33:20,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2afbcbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:20, skipping insertion in model container [2023-11-23 20:33:20,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:20" (1/1) ... [2023-11-23 20:33:20,910 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:21,138 WARN L240 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_4918e52c-02ec-4cb0-8bfe-c2d8da066255/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c[1136,1149] [2023-11-23 20:33:21,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:21,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:21,208 WARN L240 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_4918e52c-02ec-4cb0-8bfe-c2d8da066255/sv-benchmarks/c/recursified_nla-digbench/recursified_cohendiv-ll.c[1136,1149] [2023-11-23 20:33:21,222 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:21,238 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:21,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21 WrapperNode [2023-11-23 20:33:21,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:21,241 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:21,241 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:21,241 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:21,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,284 INFO L138 Inliner]: procedures = 17, calls = 84, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2023-11-23 20:33:21,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:21,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:21,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:21,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:21,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,309 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:21,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:21,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:21,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:21,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (1/1) ... [2023-11-23 20:33:21,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:21,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:21,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:21,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:33:21,420 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_52_0 [2023-11-23 20:33:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_52_0 [2023-11-23 20:33:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_32_to_55_0 [2023-11-23 20:33:21,422 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_32_to_55_0 [2023-11-23 20:33:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:33:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:33:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 20:33:21,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 20:33:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:33:21,521 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:21,524 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:21,903 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:21,971 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:21,972 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 20:33:21,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:21 BoogieIcfgContainer [2023-11-23 20:33:21,974 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:21,976 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:21,976 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:21,980 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:21,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:20" (1/3) ... [2023-11-23 20:33:21,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413b86e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:21, skipping insertion in model container [2023-11-23 20:33:21,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:21" (2/3) ... [2023-11-23 20:33:21,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@413b86e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:21, skipping insertion in model container [2023-11-23 20:33:21,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:21" (3/3) ... [2023-11-23 20:33:21,983 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohendiv-ll.c [2023-11-23 20:33:22,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:22,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:22,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:22,062 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=LoopHeads, 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;@74a7c0ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:22,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 20:33:22,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:33:22,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:22,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:22,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:22,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:22,089 INFO L85 PathProgramCache]: Analyzing trace with hash -2070177686, now seen corresponding path program 1 times [2023-11-23 20:33:22,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:22,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588389344] [2023-11-23 20:33:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:22,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:22,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:33:22,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [240996620] [2023-11-23 20:33:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:22,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:22,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:22,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:22,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:33:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:22,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-23 20:33:22,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:22,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 61 [2023-11-23 20:33:22,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:22,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-11-23 20:33:22,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-23 20:33:22,845 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2023-11-23 20:33:22,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 76 [2023-11-23 20:33:22,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-11-23 20:33:23,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-23 20:33:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:33:23,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:33:23,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:23,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588389344] [2023-11-23 20:33:23,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 20:33:23,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240996620] [2023-11-23 20:33:23,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240996620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:23,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:23,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 20:33:23,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760338181] [2023-11-23 20:33:23,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:23,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:33:23,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:23,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:33:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:33:23,333 INFO L87 Difference]: Start difference. First operand has 38 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:33:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:23,889 INFO L93 Difference]: Finished difference Result 90 states and 132 transitions. [2023-11-23 20:33:23,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 20:33:23,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 20:33:23,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:23,899 INFO L225 Difference]: With dead ends: 90 [2023-11-23 20:33:23,899 INFO L226 Difference]: Without dead ends: 51 [2023-11-23 20:33:23,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-23 20:33:23,906 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:23,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 204 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 20:33:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-23 20:33:23,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2023-11-23 20:33:23,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 33 states have internal predecessors, (34), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2023-11-23 20:33:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2023-11-23 20:33:23,956 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 8 [2023-11-23 20:33:23,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:23,956 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2023-11-23 20:33:23,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:33:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2023-11-23 20:33:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 20:33:23,957 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:23,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:23,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:33:24,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-23 20:33:24,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:24,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1618687028, now seen corresponding path program 1 times [2023-11-23 20:33:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299172522] [2023-11-23 20:33:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:24,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 20:33:24,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752546287] [2023-11-23 20:33:24,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:24,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:33:24,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:24,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:33:24,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4918e52c-02ec-4cb0-8bfe-c2d8da066255/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 20:33:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:24,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-23 20:33:24,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:33:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:24,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:25,862 INFO L349 Elim1Store]: treesize reduction 156, result has 41.1 percent of original size [2023-11-23 20:33:25,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 746 treesize of output 1003 [2023-11-23 20:33:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:26,318 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-23 20:33:26,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 61 [2023-11-23 20:33:26,679 INFO L349 Elim1Store]: treesize reduction 33, result has 48.4 percent of original size [2023-11-23 20:33:26,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 105 treesize of output 152 [2023-11-23 20:33:26,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 232 [2023-11-23 20:33:27,058 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,292 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,510 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,784 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,810 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,863 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,873 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,891 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,909 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:27,928 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:28,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:28,064 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:28,103 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:28,182 INFO L224 Elim1Store]: Index analysis took 1206 ms [2023-11-23 20:33:28,496 INFO L349 Elim1Store]: treesize reduction 200, result has 7.8 percent of original size [2023-11-23 20:33:28,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 452 treesize of output 969 [2023-11-23 20:33:29,185 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-23 20:33:29,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 44 treesize of output 50 [2023-11-23 20:33:29,563 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-23 20:33:29,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 50 [2023-11-23 20:33:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,868 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:47,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:47,921 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 20:33:47,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 313 treesize of output 250 [2023-11-23 20:33:47,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 20:33:47,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 20:33:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 20:33:48,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 1152 treesize of output 1067 [2023-11-23 20:34:03,515 WARN L293 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 636 DAG size of output: 635 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)