./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ --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 d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:59,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:59,787 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:54:59,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:59,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:59,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:59,843 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:59,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:59,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:59,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:59,852 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:59,853 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:59,854 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:59,856 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:59,857 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:59,857 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:59,858 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:59,859 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:59,859 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:59,860 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:59,861 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:59,861 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:59,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:59,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:59,863 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:54:59,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:59,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:54:59,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:59,865 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:59,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:59,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:59,867 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:54:59,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:59,868 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:59,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:59,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:59,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:59,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:59,888 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:59,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:59,889 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:59,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:59,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:59,891 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:59,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:59,892 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_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d611551bdd81171138955e09eec2c35a3c053022d643f86b25023a5ba282a01a [2023-11-19 04:55:00,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:00,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:00,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:00,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:00,228 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:00,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-19 04:55:03,841 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:04,123 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:04,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c [2023-11-19 04:55:04,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/data/cc0b7ee84/8230975f6b4a4db38b235b3a4db4a53b/FLAG490e9f5c3 [2023-11-19 04:55:04,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/data/cc0b7ee84/8230975f6b4a4db38b235b3a4db4a53b [2023-11-19 04:55:04,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:04,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:04,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:04,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:04,173 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:04,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4714ffd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04, skipping insertion in model container [2023-11-19 04:55:04,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,207 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:04,411 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_a25165d0-dc65-49c8-bdfc-3211c1577863/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-19 04:55:04,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:04,461 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:55:04,476 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_a25165d0-dc65-49c8-bdfc-3211c1577863/sv-benchmarks/c/recursified_nla-digbench/recursified_geo3-ll.c[1055,1068] [2023-11-19 04:55:04,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:04,508 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:55:04,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04 WrapperNode [2023-11-19 04:55:04,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:04,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:04,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:55:04,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:55:04,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,529 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,554 INFO L138 Inliner]: procedures = 16, calls = 66, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 84 [2023-11-19 04:55:04,555 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:04,556 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:55:04,556 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:55:04,556 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:55:04,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,583 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:55:04,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:55:04,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:55:04,592 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:55:04,593 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (1/1) ... [2023-11-19 04:55:04,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:04,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:04,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:55:04,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:55:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:55:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:55:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:55:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:55:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-19 04:55:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-19 04:55:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:55:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:55:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:55:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 04:55:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 04:55:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:55:04,761 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:55:04,764 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:55:05,122 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:05,164 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:05,164 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:55:05,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:05 BoogieIcfgContainer [2023-11-19 04:55:05,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:05,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:05,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:05,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:05,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:55:04" (1/3) ... [2023-11-19 04:55:05,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bdf39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:05, skipping insertion in model container [2023-11-19 04:55:05,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:04" (2/3) ... [2023-11-19 04:55:05,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48bdf39e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:05, skipping insertion in model container [2023-11-19 04:55:05,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:05" (3/3) ... [2023-11-19 04:55:05,182 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo3-ll.c [2023-11-19 04:55:05,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:05,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:55:05,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:05,276 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;@785ea2be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:05,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:55:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 04:55:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 04:55:05,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:05,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:05,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:05,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:05,299 INFO L85 PathProgramCache]: Analyzing trace with hash 453876118, now seen corresponding path program 1 times [2023-11-19 04:55:05,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831198756] [2023-11-19 04:55:05,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:05,455 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:55:05,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805779686] [2023-11-19 04:55:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:05,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:55:05,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:05,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:55:05,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:55:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:05,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 97 conjunts are in the unsatisfiable core [2023-11-19 04:55:05,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:06,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1025 treesize of output 69 [2023-11-19 04:55:06,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:55:06,345 INFO L349 Elim1Store]: treesize reduction 38, result has 33.3 percent of original size [2023-11-19 04:55:06,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 128 [2023-11-19 04:55:06,539 INFO L349 Elim1Store]: treesize reduction 118, result has 2.5 percent of original size [2023-11-19 04:55:06,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 4156 treesize of output 4133 [2023-11-19 04:55:07,070 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 18 treesize of output 17 [2023-11-19 04:55:07,648 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 18 treesize of output 17 [2023-11-19 04:55:07,917 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:07,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2023-11-19 04:55:07,936 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 15 treesize of output 13 [2023-11-19 04:55:08,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 71 treesize of output 27 [2023-11-19 04:55:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:08,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:55:08,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:08,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831198756] [2023-11-19 04:55:08,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 04:55:08,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805779686] [2023-11-19 04:55:08,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805779686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:08,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:08,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 04:55:08,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184924712] [2023-11-19 04:55:08,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:08,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 04:55:08,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:08,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 04:55:08,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:55:08,673 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2023-11-19 04:55:09,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:09,795 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2023-11-19 04:55:09,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 04:55:09,798 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 [2023-11-19 04:55:09,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:09,808 INFO L225 Difference]: With dead ends: 52 [2023-11-19 04:55:09,808 INFO L226 Difference]: Without dead ends: 31 [2023-11-19 04:55:09,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:55:09,816 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:09,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 66 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 04:55:09,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-19 04:55:09,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-11-19 04:55:09,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 04:55:09,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-19 04:55:09,876 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-11-19 04:55:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:09,877 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-19 04:55:09,877 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) [2023-11-19 04:55:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-19 04:55:09,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:55:09,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:09,880 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:09,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:55:10,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 04:55:10,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:10,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:10,107 INFO L85 PathProgramCache]: Analyzing trace with hash 534296557, now seen corresponding path program 1 times [2023-11-19 04:55:10,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:10,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100020698] [2023-11-19 04:55:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:10,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:10,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 04:55:10,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [957742627] [2023-11-19 04:55:10,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:10,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:55:10,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:10,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:55:10,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a25165d0-dc65-49c8-bdfc-3211c1577863/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 04:55:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:10,536 WARN L260 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 151 conjunts are in the unsatisfiable core [2023-11-19 04:55:10,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:55:10,635 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,636 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,637 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,640 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,641 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,642 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,650 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,651 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,652 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,653 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,660 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 04:55:10,672 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,687 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:10,688 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:12,892 INFO L349 Elim1Store]: treesize reduction 900, result has 20.2 percent of original size [2023-11-19 04:55:12,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 2172 treesize of output 1228 [2023-11-19 04:55:13,046 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:13,061 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:13,824 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:13,836 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:14,782 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:14,792 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:15,752 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:15,857 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:16,202 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:16,301 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:16,321 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 04:55:16,330 INFO L224 Elim1Store]: Index analysis took 3326 ms [2023-11-19 04:55:17,334 INFO L349 Elim1Store]: treesize reduction 363, result has 6.4 percent of original size [2023-11-19 04:55:17,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 7 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 41 case distinctions, treesize of input 411 treesize of output 848 [2023-11-19 04:55:19,083 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 27 treesize of output 25