./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2c_append_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2c_append_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91 --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 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:48:43,561 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:48:43,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-24 23:48:43,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:48:43,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:48:43,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:48:43,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:48:43,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:48:43,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:48:43,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:48:43,725 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:48:43,726 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:48:43,726 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:48:43,727 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:48:43,727 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:48:43,728 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:48:43,729 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:48:43,729 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:48:43,730 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:48:43,730 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:48:43,731 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:48:43,732 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:48:43,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:48:43,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:48:43,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:48:43,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:48:43,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:48:43,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:48:43,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:48:43,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:48:43,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:48:43,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:48:43,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:48:43,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:48:43,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:48:43,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:48:43,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:48:43,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:43,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:48:43,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:48:43,753 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:48:43,753 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:48:43,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:48:43,754 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:48:43,755 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:48:43,755 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:48:43,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:48:43,755 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_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208d04089fa2c50848123d29dd18b6b2021c1b591464bd422fd10955aaeec7fc [2023-11-24 23:48:44,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:48:44,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:48:44,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:48:44,155 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:48:44,156 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:48:44,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-11-24 23:48:47,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:48:47,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:48:47,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/sv-benchmarks/c/list-simple/dll2c_append_equal.i [2023-11-24 23:48:47,552 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/data/4f04bf549/d2b5034b41914fb991b2e2cdd20dcc26/FLAGf20a58c07 [2023-11-24 23:48:47,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/data/4f04bf549/d2b5034b41914fb991b2e2cdd20dcc26 [2023-11-24 23:48:47,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:48:47,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:48:47,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:47,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:48:47,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:48:47,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:47,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f91bc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:47, skipping insertion in model container [2023-11-24 23:48:47,578 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:47" (1/1) ... [2023-11-24 23:48:47,621 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:48:47,942 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_1c16cebf-f295-4a04-b36f-9a037b7e715c/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2023-11-24 23:48:47,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:47,959 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:48:48,041 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_1c16cebf-f295-4a04-b36f-9a037b7e715c/sv-benchmarks/c/list-simple/dll2c_append_equal.i[24585,24598] [2023-11-24 23:48:48,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:48,085 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:48:48,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48 WrapperNode [2023-11-24 23:48:48,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:48,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:48,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:48:48,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:48:48,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,137 INFO L138 Inliner]: procedures = 127, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 137 [2023-11-24 23:48:48,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:48,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:48:48,140 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:48:48,140 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:48:48,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:48:48,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:48:48,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:48:48,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:48:48,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (1/1) ... [2023-11-24 23:48:48,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:48,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:48:48,245 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:48:48,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:48:48,299 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-24 23:48:48,300 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-24 23:48:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:48:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:48:48,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:48:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:48:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:48:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:48:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:48:48,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:48:48,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:48:48,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:48:48,478 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:48:48,488 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:48:48,841 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:48:48,987 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:48:48,987 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 23:48:48,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:48 BoogieIcfgContainer [2023-11-24 23:48:48,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:48:48,992 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:48:48,992 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:48:48,995 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:48:48,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:48:47" (1/3) ... [2023-11-24 23:48:48,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f553f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:48, skipping insertion in model container [2023-11-24 23:48:48,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:48" (2/3) ... [2023-11-24 23:48:48,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f553f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:48, skipping insertion in model container [2023-11-24 23:48:48,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:48" (3/3) ... [2023-11-24 23:48:49,000 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_append_equal.i [2023-11-24 23:48:49,021 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:48:49,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:48:49,083 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:48:49,091 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;@6392955e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:48:49,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:48:49,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 23:48:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:48:49,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:49,103 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:48:49,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:48:49,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash -243179890, now seen corresponding path program 1 times [2023-11-24 23:48:49,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:48:49,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186365479] [2023-11-24 23:48:49,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:49,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:48:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:49,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 23:48:49,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:48:49,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186365479] [2023-11-24 23:48:49,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186365479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:48:49,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:48:49,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:48:49,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55113024] [2023-11-24 23:48:49,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:48:49,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:48:49,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:48:49,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:48:49,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:48:49,831 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:48:49,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:48:49,970 INFO L93 Difference]: Finished difference Result 43 states and 60 transitions. [2023-11-24 23:48:49,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:48:49,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-24 23:48:49,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:48:49,983 INFO L225 Difference]: With dead ends: 43 [2023-11-24 23:48:49,983 INFO L226 Difference]: Without dead ends: 20 [2023-11-24 23:48:49,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:48:49,993 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:48:49,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:48:50,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-24 23:48:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2023-11-24 23:48:50,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-24 23:48:50,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-11-24 23:48:50,038 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 15 [2023-11-24 23:48:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:48:50,038 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-24 23:48:50,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-24 23:48:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-24 23:48:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:48:50,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:50,041 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:48:50,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:48:50,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:48:50,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:50,043 INFO L85 PathProgramCache]: Analyzing trace with hash -547876874, now seen corresponding path program 1 times [2023-11-24 23:48:50,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:48:50,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251630129] [2023-11-24 23:48:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:50,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:48:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:48:56,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:48:56,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251630129] [2023-11-24 23:48:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251630129] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 23:48:56,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682655683] [2023-11-24 23:48:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:56,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 23:48:56,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:48:56,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 23:48:56,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c16cebf-f295-4a04-b36f-9a037b7e715c/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-24 23:48:57,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:57,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 130 conjunts are in the unsatisfiable core [2023-11-24 23:48:57,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:48:57,870 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 6 treesize of output 5 [2023-11-24 23:48:57,960 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 [2023-11-24 23:48:58,112 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-24 23:48:58,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-24 23:48:58,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:48:58,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-24 23:48:58,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:58,642 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-24 23:48:58,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2023-11-24 23:48:58,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2023-11-24 23:48:58,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:58,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-11-24 23:48:58,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-24 23:48:59,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 31 [2023-11-24 23:48:59,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 52 [2023-11-24 23:48:59,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2023-11-24 23:48:59,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 30 [2023-11-24 23:48:59,143 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 9 treesize of output 7 [2023-11-24 23:48:59,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 1 [2023-11-24 23:48:59,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 15 [2023-11-24 23:48:59,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:48:59,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 42 [2023-11-24 23:48:59,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2023-11-24 23:48:59,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-24 23:48:59,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 treesize of output 3 [2023-11-24 23:48:59,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,595 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-11-24 23:48:59,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 99 treesize of output 72 [2023-11-24 23:48:59,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,635 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-11-24 23:48:59,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 33 treesize of output 33 [2023-11-24 23:48:59,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 20 treesize of output 15 [2023-11-24 23:48:59,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 16 treesize of output 11 [2023-11-24 23:48:59,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:48:59,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:00,170 INFO L349 Elim1Store]: treesize reduction 316, result has 8.4 percent of original size [2023-11-24 23:49:00,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 932 treesize of output 489 [2023-11-24 23:49:00,384 INFO L349 Elim1Store]: treesize reduction 473, result has 4.3 percent of original size [2023-11-24 23:49:00,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 928 treesize of output 653 [2023-11-24 23:49:00,533 INFO L349 Elim1Store]: treesize reduction 512, result has 1.0 percent of original size [2023-11-24 23:49:00,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 865 treesize of output 671 [2023-11-24 23:49:00,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:00,660 INFO L349 Elim1Store]: treesize reduction 242, result has 0.4 percent of original size [2023-11-24 23:49:00,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 3076 treesize of output 2373 [2023-11-24 23:49:00,856 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:00,858 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:00,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:00,866 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:00,877 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:00,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:00,942 INFO L349 Elim1Store]: treesize reduction 284, result has 0.4 percent of original size [2023-11-24 23:49:00,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 34 case distinctions, treesize of input 3918 treesize of output 2742 [2023-11-24 23:49:01,083 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,084 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,086 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,087 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,097 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:01,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,178 INFO L349 Elim1Store]: treesize reduction 284, result has 0.4 percent of original size [2023-11-24 23:49:01,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 34 case distinctions, treesize of input 3929 treesize of output 2753 [2023-11-24 23:49:01,309 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,310 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,312 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,313 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:01,323 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:01,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,636 INFO L349 Elim1Store]: treesize reduction 203, result has 16.5 percent of original size [2023-11-24 23:49:01,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 3054 treesize of output 2392 [2023-11-24 23:49:01,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:01,795 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:02,130 INFO L349 Elim1Store]: treesize reduction 395, result has 21.8 percent of original size [2023-11-24 23:49:02,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 446 treesize of output 715 [2023-11-24 23:49:02,334 INFO L349 Elim1Store]: treesize reduction 166, result has 10.3 percent of original size [2023-11-24 23:49:02,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 1871 treesize of output 1161 [2023-11-24 23:49:02,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:10,938 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 186 DAG size of output: 58 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-24 23:49:10,938 INFO L349 Elim1Store]: treesize reduction 952, result has 12.1 percent of original size [2023-11-24 23:49:10,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5324 treesize of output 5108 [2023-11-24 23:49:11,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 5084 treesize of output 4488 [2023-11-24 23:49:12,851 INFO L224 Elim1Store]: Index analysis took 949 ms [2023-11-24 23:49:13,186 INFO L349 Elim1Store]: treesize reduction 102, result has 1.0 percent of original size [2023-11-24 23:49:13,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 359 treesize of output 402 [2023-11-24 23:49:14,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 23:49:14,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 103 [2023-11-24 23:49:20,719 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,720 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,721 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,725 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,730 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:20,744 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:20,908 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 3530 treesize of output 3380 [2023-11-24 23:49:21,143 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,144 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,145 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,146 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,147 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,149 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,165 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:21,385 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,406 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,433 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:21,474 INFO L349 Elim1Store]: treesize reduction 1333, result has 0.1 percent of original size [2023-11-24 23:49:21,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 29 case distinctions, treesize of input 60991 treesize of output 45487 [2023-11-24 23:49:24,216 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,217 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,218 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,218 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,250 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,251 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,252 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,253 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,286 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,340 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:24,828 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,829 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,830 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,830 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,838 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,838 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,839 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,848 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,856 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:24,869 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-24 23:49:25,262 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,289 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 23:49:25,473 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 23:49:33,228 WARN L293 SmtUtils]: Spent 7.58s on a formula simplification. DAG size of input: 1805 DAG size of output: 1 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-24 23:49:33,229 INFO L349 Elim1Store]: treesize reduction 23037, result has 0.0 percent of original size [2023-11-24 23:49:33,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 45 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 50 new quantified variables, introduced 387 case distinctions, treesize of input 215962 treesize of output 199495